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Wafer-Level Self-Assembly and Interface Passivation Patterning Technology for Nanomaterial-Compatible 3D MEMS Sensing Chips 认领 引用
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作者 Zheng Zhang Yanlin Zhang +4 位作者 Yuanyuan Luo Guoliang Lv Jianglin Yin Pengwei Tan Guotao Duan 《Nano-Micro Letters》 SCIE EI CAS CSCD 2026年第7期106-121,共16页
Wafer-scale fabrication of high-performance microelectro-mechanical systems(MEMS)bio/chemical sensing chips remains constrained by the absence of reliable methods for integrating high-performance nanomaterials into su... Wafer-scale fabrication of high-performance microelectro-mechanical systems(MEMS)bio/chemical sensing chips remains constrained by the absence of reliable methods for integrating high-performance nanomaterials into suspended MEMS architectures.Here,a wafer-level manufacturing strategy is presented that redefines the MEMS process flow as“film first,cantilever later.”Through kinetically controlled self-assembly,wet-chemically synthesized Pd/SnO2nanospheres are transferred as dense,uniform monolithic films onto 8-inch wafers.An HfO2interface passivation patterning technology resolves long-standing incompatibility between functional sensing films and silicon substrates,enabling precise patterning and reliable integration on suspended MEMS cantilevers.The resulting Pd/SnO2MEMS H2 chips are fabricated onto an 8-inch wafer,demonstrating high sensitivity and consistency.This approach overcomes long-standing wafer-level manufacturing challenges in the formation and patterning of high-performance nanomaterials film,establishing a fully integrated wafer-level process that fundamentally redefines the manufacturing route for tetramethylammonium hydroxide-resistant nanomaterial-based MEMS sensing chips. 展开更多
关键词 Compatible manufacturing Wafer-level self-assembly Interface passivation patterning technology MEMS Sensing chips
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Laser-Driven Halide Exchange and High-Resolution Multicolor Patterning of Perovskite Films 认领 引用 被引量：1
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作者 Shu Yang Annan Hu +4 位作者 Chun Yang Guilong Yan Xue Yu Xuhui Xu Ting Wang 《Rare Metals》 SCIE EI CAS CSCD 2026年第3期256-263,共8页
Translating the excellent properties of metal halide perovskites(MHPs)into practical flexible optoelectronic devices requires high-resolution multicolor patterning techniques that are compatible with post-fabrication ... Translating the excellent properties of metal halide perovskites(MHPs)into practical flexible optoelectronic devices requires high-resolution multicolor patterning techniques that are compatible with post-fabrication processing.However,such a capability has remained elusive.Here,we introduce a mask-free continuous-wave(CW)laser patterning technique that simultaneously crystallizes and compositionally tunes CsPb(Br1-xIx)3perovskite nanocrystals(PNCs)within a polyvinylidene difluoride(PVDF)film.By modulating the irradiation time and power density,we achieve precise control over halide composition,enabling continuous photoluminescence(PL)shift from green(520 nm)to red(630 nm)and a corresponding bandgap reduction from 2.31 to 1.89 eV.This approach enables high-resolution multicolor patterning with micron-scale features suitable for flexible optoelectronics.Furthermore,the patterned perovskite-PVDF films exhibit excellent water stability and mechanical flexibility,supporting applications in high-resolution X-ray imaging and dynamic biomimetic devices.We demonstrate scalable fabrication of vivid,bendable patterns,and integrate laser-patterned perovskite motifs into a humidityresponsive polyurethane copolymer to create bionic butterflies that mimic natural wing motion.This mask-free single-step laser patterning method offers a versatile and post-fabrication-compatible route for spatially precise optoelectronic integration,advancing the application of perovskite nanomaterials in flexible displays,scintillators,and biomimetic robotics. 展开更多
关键词 continuous-wave laser multicolor patterning perovskite nanocrystals photoluminescence
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Scalable Manufacturing and Precise Patterning of Perovskites for Light-Emitting Diodes 认领 引用
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作者 Shuaiqi Liu Hao Jiang +3 位作者 Jizhuang Wang Li Liu Zhiwen Zhou Mojun Chen 《Nano-Micro Letters》 SCIE EI CAS CSCD 2026年第6期154-199,共46页
Owing to the exceptional optoelectronic properties,metal halide perovskites have emerged as leading semiconductor materials for next-generation display technologies,providing perovskite light-emitting diodes(Pe LEDs)g... Owing to the exceptional optoelectronic properties,metal halide perovskites have emerged as leading semiconductor materials for next-generation display technologies,providing perovskite light-emitting diodes(Pe LEDs)great potential for high-quality color displays with a wide color gamut and pure color emission.Although laboratory-scale Pe LEDs have achieved neartheoretical efficiencies,challenges such as achieving uniform large-area films,improving material stability,and enhancing patterning precision remain barriers to commercialization.This review presents a systematic analysis of scalable manufacturing and precision patterning strategies for Pe LEDs,focusing on their applications in large-area lighting and full-color displays.Fabrication methods are categorized into film deposition techniques(spin-coating,blade-coating,and thermal evaporation)and patterning strategies,including top-down(photolithography,laser/e-beam lithography,and nanoimprinting)and bottom-up(patterned crystal growth,inkjet printing,and electrohydrodynamic jet printing)approaches.In this review,we discuss the advantages and limitations of each strategy,highlight current challenges,and outlook possible pathways towards scalable,high-performance Pe LEDs for advanced optoelectronic applications. 展开更多
关键词 Perovskite materials Scalable manufacturing Precise patterning Light-emitting diodes
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PORA1/2-dependent chlorophyll biosynthesis coordinates with carotenoid accumulation to drive petal color patterning in Liriodendron 认领 引用
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作者 Lingfeng Hu Yongwei Zhu +8 位作者 Long Yu Lu Lu Yingxuan Ma Renhua Zheng Jinfang Zhang Longying Pan Jinhui Chen Zhaodong Hao Jisen Shi 《Forestry Research》 2025年第1期208-220,共13页
Liriodendron is a highly valued ornamental genus renowned for its distinctive tulip-shaped flowers.Despite its horticultural importance,the molecular mechanisms underlying interspecific variation in petal coloration,n... Liriodendron is a highly valued ornamental genus renowned for its distinctive tulip-shaped flowers.Despite its horticultural importance,the molecular mechanisms underlying interspecific variation in petal coloration,namely green petals in Liriodendron chinense(Hemsl.)Sargent,an orange-yellow basal band in Liriodendron tulipifera Linn.,and an extended orange-yellow band in their hybrid,remain poorly understood.By integrating morphological,transcriptomic,and metabolomic analyses,we found that orange-yellow pigmentation during petal development is closely associated with chlorophyll degradation and carotenoid biosynthesis.The expression of chlorophyll synthesis genes PORA1 and PORA2 showed a strong positive correlation with chlorophyll content,and their downregulation led to disrupted chloroplast structure and reduced chlorophyll levels.Concurrently,carotenoid biosynthesis genes CRTISO and LCYE were markedly upregulated during the formation of the colored petal band.These results highlight the synergistic roles of chlorophyll and carotenoid metabolism in determining petal color patterning in Liriodendron,providing a genetic basis for the targeted breeding of ornamental traits. 展开更多
关键词 petal color patterning green petals molecular mechanisms chlorophyll biosynthesis Liriodendron chloroplast structure transcriptomic analysis carotenoid accumulation
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Recent advances of photolithography patterning of quantum dots for micro-display applications 认领 引用 被引量：5
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作者 Xuemin Kong Xiaotong Fan +6 位作者 Yuhui Wang Yunshu Luo Yihang Chen Tingzhu Wu Zhong Chen Yue Lin Shuli Wang 《Nano Materials Science》 EI CAS CSCD 2025年第1期49-64,共16页
The preparation of red,green,and blue quantum dot(QD)pixelated arrays with high precision,resolution,and brightness poses a significant challenge on the development of advanced micro-displays for virtual,augmented,and... The preparation of red,green,and blue quantum dot(QD)pixelated arrays with high precision,resolution,and brightness poses a significant challenge on the development of advanced micro-displays for virtual,augmented,and mixed reality applications.Alongside the controlled synthesis of high-performance QDs,a reliable QD patterning technology is crucial in overcoming this challenge.Among the various methods available,photolithography-based patterning technologies show great potentials in producing ultra-fine QD patterns at micron scale.This review article presents the recent advancements in the field of QD patterning using photolithography techniques and explores their applications in micro-display technology.Firstly,we discuss QD patterning through photolithography techniques employing photoresist(PR),which falls into two categories:PRassisted photolithography and photolithography of QDPR.Subsequently,direct photolithography techniques based on photo-induced crosslinking of photosensitive groups and photo-induced ligand cleavage mechanisms are thoroughly reviewed.Meanwhile,we assess the performance of QD arrays fabricated using these photolithography techniques and their integration into QD light emitting diode display devices as well as color conversionbased micro light emitting diode display devices.Lastly,we summarize the most recent developments in this field and outline future prospects. 展开更多
关键词 Quantum dot Photolithography Patterning technology Micro-display
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Multi-responsive Itaconic Acid-based Polymer toward Regulatable Patterning Surfaces and Rewritable Information Storage Applications 认领 引用 被引量：1
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作者 Hao-Chen Guo Jian Chen +6 位作者 Bo-Lun Feng Hou-Li Zhang Xiao-Yu Yang Lu Wang Pei-Ming Xu Hui Li Chuan-Yong Zong 《Chinese Journal of Polymer Science》 SCIE EI CAS CSCD 2025年第7期1114-1124,共11页
Functional materials synthesized from bio-based building blocks are fascinating and challenging in the fields of chemistry and materials science.Herein,we present a versatile strategy for synthesizing bio-based stimul... Functional materials synthesized from bio-based building blocks are fascinating and challenging in the fields of chemistry and materials science.Herein,we present a versatile strategy for synthesizing bio-based stimulus-responsive polymers derived from itaconic acid(IA).Bearing an azobenzene-containing side chain,the IA-based epoxy polymer exhibited both photoresponsiveness and acid/base-stimulus responsiveness.With controllable manipulation of the stress field of the wrinkling IA-polymer film via the stress relaxation effect resulting from the reversible cis-trans isomerization of the azobenzene moieties or solvent-induced swelling of the film,various tailor-made patterned wrinkling surfaces were conveniently fabricated.More importantly,the azobenzene protonation/deprotonation yields a reversible visual color transformation between pale yellow and purple in the film,which allows these IA-based polymer-coated surfaces to be utilized as rewritable information storage media.Various elegant pattern information can be acid-printed and base-erased(within 10 s)for multiple cycles and legible for over one day under laboratory conditions.Notably,the aforementioned dual-stimulus responsiveness of the IA-based polymer film enables its surface to be applied in information encryption.This study not only paves a new avenue for the convenient fabrication of stimulus-responsive surfaces but also sheds light on the development of functional polymers through green engineering. 展开更多
关键词 Azobenzene Photo-responsive Itaconic acid Patterning surface Information storage
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Manufacturing high-performance flexible sensors via advanced patterning techniques 认领 引用 被引量：9
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作者 Xiaokun Qin Bowen Zhong +5 位作者 Hao Xu Joshua A Jackman Kaichen Xu Nam-Joon Cho Zheng Lou Lili Wang 《International Journal of Extreme Manufacturing》 SCIE EI CAS CSCD 2025年第3期81-124,共44页
Sensors play an important role in information perception during the age of intelligence,particularly in areas such as environmental monitoring and human perception.To meet the huge demands for information acquisition ... Sensors play an important role in information perception during the age of intelligence,particularly in areas such as environmental monitoring and human perception.To meet the huge demands for information acquisition in the whole society,the development of elaborated sensor structures using patterned manufacturing technology is important to improve the performance of sensors.Creating patterned structures can enhance the interaction between the sensitive material and target matter,increase the contact area between the sensor and the target matter,amplify the effect of target matter on the sensor structure,and enhance the density of information sensing by building arrays.This review presents a comprehensive overview of patterned micro-nanostructure manufacturing techniques for performance enhancement of flexible sensors,including printing,exposure lithography,mould method,soft lithography,nanoimprinting lithography,and laser direct writing technology.Meanwhile,it introduces the evaluation methods of flexible sensor performance and discusses how patterned structures influence this performance.Finally,some practical application examples of patterned manufacturing techniques are introduced according to different types of flexible sensors.This review also summarises and provides an outlook on the role of these techniques in enhancing sensor performance offering valuable insights for future developments in the patterned manufacturing of flexible sensors. 展开更多
关键词 patterned process flexible sensor patterned structure performance enhancement
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Bacterial anti-adhesion surface design:Surface patterning,roughness and wettability:A review 认领 引用 被引量：19
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作者 Kun Yang Jirong Shi +4 位作者 Lei Wang Yingzhi Chen Chunyong Liang Lei Yang Lu-Ning Wang 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2022年第4期82-100,共19页
Bacterial adhesion and biofilm formation impose a heavy burden on the medical system. Bacterial adhesion on implant materials would induce inflammation and result in implant failure. The adhesion of bacteria on food-p... Bacterial adhesion and biofilm formation impose a heavy burden on the medical system. Bacterial adhesion on implant materials would induce inflammation and result in implant failure. The adhesion of bacteria on food-processing and handling equipment may lead to food-borne illness. To reduce and even prevent bacterial adhesion, some bacterial anti-adhesion surface designs have been developed. However,the effect of some surface properties(including surface patterning, roughness and wettability) on bacterial adhesion has not been systematically summarized. In this review, a comprehensive overview of bacterial anti-adhesion surface design is presented. Modifying the surface pattern and roughness could reduce the contact area between bacteria and surfaces to weaken the initial adhesion force. Fabricating superhydrophobic surface or modifying hydrophilic functional groups could hinder the bacterial adhesion. The analysis and discussion about influencing factors of bacterial anti-adhesion surfaces provide basic guidelines on antibacterial surface design for future researches. 展开更多
关键词 Bacterial anti-adhesion Surface patterning Roughness Wettability
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Recent Advances in Patterning Strategies for Full‑Color Perovskite Light‑Emitting Diodes 认领 引用 被引量：10
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作者 Gwang Heon Lee Kiwook Kim +2 位作者 Yunho Kim Jiwoong Yang Moon Kee Choi 《Nano-Micro Letters》 SCIE EI CAS CSCD 2024年第3期99-137,共39页
Metal halide perovskites have emerged as promising light-emitting materials for next-generation displays owing to their remarkable material characteristics including broad color tunability,pure color emission with rem... Metal halide perovskites have emerged as promising light-emitting materials for next-generation displays owing to their remarkable material characteristics including broad color tunability,pure color emission with remarkably narrow bandwidths,high quantum yield,and solution processability.Despite recent advances have pushed the luminance efficiency of monochromic perovskite light-emitting diodes(PeLEDs)to their theoretical limits,their current fabrication using the spincoating process poses limitations for fabrication of full-color displays.To integrate PeLEDs into full-color display panels,it is crucial to pattern red–green–blue(RGB)perovskite pixels,while mitigating issues such as cross-contamination and reductions in luminous efficiency.Herein,we present state-of-the-art patterning technologies for the development of full-color PeLEDs.First,we highlight recent advances in the development of efficient PeLEDs.Second,we discuss various patterning techniques of MPHs(i.e.,photolithography,inkjet printing,electron beam lithography and laserassisted lithography,electrohydrodynamic jet printing,thermal evaporation,and transfer printing)for fabrication of RGB pixelated displays.These patterning techniques can be classified into two distinct approaches:in situ crystallization patterning using perovskite precursors and patterning of colloidal perovskite nanocrystals.This review highlights advancements and limitations in patterning techniques for PeLEDs,paving the way for integrating PeLEDs into full-color panels. 展开更多
关键词 Perovskite Light-emitting diode Full-color display High-resolution patterning Electroluminescence
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Surface Patterning of Metal Zinc Electrode with an In‑Region Zincophilic Interface for High‑Rate and Long‑Cycle‑Life Zinc Metal Anode 认领 引用 被引量：7
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作者 Tian Wang Qiao Xi +8 位作者 Kai Yao Yuhang Liu Hao Fu Venkata Siva Kavarthapu Jun Kyu Lee Shaocong Tang Dina Fattakhova‑Rohlfing Wei Ai Jae Su Yu 《Nano-Micro Letters》 SCIE EI CAS CSCD 2024年第6期192-209,共18页
The undesirable dendrite growth induced by non-planar zinc(Zn)deposition and low Coulombic efficiency resulting from severe side reactions have been long-standing challenges for metallic Zn anodes and substantially im... The undesirable dendrite growth induced by non-planar zinc(Zn)deposition and low Coulombic efficiency resulting from severe side reactions have been long-standing challenges for metallic Zn anodes and substantially impede the practical application of rechargeable aqueous Zn metal batteries(ZMBs).Herein,we present a strategy for achieving a high-rate and long-cycle-life Zn metal anode by patterning Zn foil surfaces and endowing a Zn-Indium(Zn-In)interface in the microchannels.The accumulation of electrons in the microchannel and the zincophilicity of the Zn-In interface promote preferential heteroepitaxial Zn deposition in the microchannel region and enhance the tolerance of the electrode at high current densities.Meanwhile,electron aggregation accelerates the dissolution of non-(002)plane Zn atoms on the array surface,thereby directing the subsequent homoepitaxial Zn deposition on the array surface.Consequently,the planar dendrite-free Zn deposition and long-term cycling stability are achieved(5,050 h at 10.0 mA cm−2 and 27,000 cycles at 20.0 mA cm−2).Furthermore,a Zn/I2 full cell assembled by pairing with such an anode can maintain good stability for 3,500 cycles at 5.0 C,demonstrating the application potential of the as-prepared ZnIn anode for high-performance aqueous ZMBs. 展开更多
关键词 Zn metal anode Surface patterning Directional Zn deposition Aqueous Zn-I2batteries
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Ultrasonic-based surface patterning and interfacial reaction of ZrO2ceramics 认领 引用 被引量：5
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作者 H.J. Dong Z.L. Li +4 位作者 X.G.Song J.C. Feng S.J. Wei J.H. Fu Y. Shi 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2023年第24期202-210,共9页
We demonstrate a process to achieve selective surface metallization of ZrO2ceramics using ultrasound technology in atmospheric environments at 350℃,which bestows good weldability of ZrO2to achieve rapid and rel... We demonstrate a process to achieve selective surface metallization of ZrO2ceramics using ultrasound technology in atmospheric environments at 350℃,which bestows good weldability of ZrO2to achieve rapid and reliable connections with other metals as well as ceramic materials.The challenge is that brazing or diffusion welding processes to accomplish metallurgical connections for ZrO2 typically require holding at elevated temperatures for minutes to hours,while the selective ultrasonic metallization process requires only a few seconds of processing without the application of covering films or solder resists.In this study,the selected Sn-2Ti alloy could effectively wet and spread on ZrO2substrate under ultrasonication,and continuous interphase layers were rapidly formed in situ between ZrO2and Sn-2Ti.The bonding strength for the ZrO2/Sn-2Ti interface was well established with the highest shear strength of 37.1 MPa,and the fracture location occurred at the filler metal.The interfacial reaction layer thickened remarkably with the prolongation of sonication,accompanied by the partial crystallization of amorphous TiO and the formation of irregularly striped Ti11.31Sn3O10nanocrystals. 展开更多
关键词 Selective ultrasonic metallization Zirconia surface patterning Low temperature connection Sono-oxidation Interfacial reaction
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The coiled-coil domain containing protein Ccdc136b antagonizes maternal Wnt/β-catenin activity during zebrafish dorsoventral axial patterning 认领 引用 被引量：5
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作者 Shi Wei Hanqiao Shang +1 位作者 Yu Cao Qiang Wang 《Journal of Genetics and Genomics》 SCIE CAS CSCD 2016年第7期431-438,共8页
The coiled-coil domain containing protein CCDC136 is a putative tumor suppressor and significantly down-regulated in gastric and colorectal cancer tissues. However, little is known about its biological functions durin... The coiled-coil domain containing protein CCDC136 is a putative tumor suppressor and significantly down-regulated in gastric and colorectal cancer tissues. However, little is known about its biological functions during vertebrate embryo development. Zebrafish has two CCDC136 orthologs, ccdc136a and ccdc136b, but only ccdc136b is highly expressed during early embryonic development. In this study, we demonstrate that ccdc136b is required for dorsal-ventral axial patterning in zebrafish embryos, ccdc136b morphants display strongly dorsalized phenotypes. Loss- and gain-of-function experiments in zebrafish embryos and mammalian cells show that Ccdc136b is a crucial negative regulator of the Wnt/β-catenin signaling pathway, and plays a critical role in the establishment of the dorsal-ventral axis. We further find that Ccdc136b interacts with APC, promotes the binding affinity of APC withβ-catenin and then facilitates the turnover ofβ-catenin. These results provide the first evidence that CCDC136 regulates zebrafish dorsal-ventral patterning by antagonizing Wnt/β-catenin signal transduction and suggest a potential mechanism underlying its suppressive activity in carcinogenesis. 展开更多
关键词 CCDC136 Dorsal-ventral patterning Wnt signaling β-catenin Zebrafish
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Dissolvable temporary barrier:a novel paradigm for flexible hydrogel patterning in organ-on-a-chip models 认领 引用 被引量：4
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作者 Ding Wang Qinyu Li +5 位作者 Chenyang Zhou Zhangjie Li Kangyi Lu Yijun Liu Lian Xuan Xiaolin Wang 《Bio-Design and Manufacturing》 SCIE EI CAS CSCD 2024年第2期153-166,共14页
A combination of hydrogels and microfluidics allows the construction of biomimetic three-dimensional(3D)tissue models in vitro,which are also known as organ-on-a-chipmodels.The hydrogel patterningwith awell-controlled... A combination of hydrogels and microfluidics allows the construction of biomimetic three-dimensional(3D)tissue models in vitro,which are also known as organ-on-a-chipmodels.The hydrogel patterningwith awell-controlled spatial distribution is typically achieved by embedding sophisticated microstructures to act as a boundary.However,these physical barriers inevitably expose cellsissues to a less physiologically relevant microenvironment than in vivo conditions.Herein,we present a novel dissolvable temporary barrier(DTB)strategy that allows robust and flexible hydrogel patterning with great freedom of design and desirable flow stimuli for cellular hydrogels.The key aspect of this approach is the patterning of a water-soluble rigid barrier as a guiding path for the hydrogel using stencil printing technology,followed by a barrier-free medium perfusion after the dissolution of the DTB.Single and multiple tissue compartments with different geometries can be established using either straight or curved DTB structures.The effectiveness of this strategy is further validated by generating a 3D vascular network through vasculogenesis and angiogenesis using a vascularized microtumor model.As a new proof-of-concept in vasculature-on-a-chip,DTB enables seamless contact between the hydrogel and the culture medium in closed microdevices,which is an improved protocol for the fabrication ofmultiorgan chips.Therefore,we expect it to serve as a promising paradigm for organ-on-a-chip devices for the development of tumor vascularization and drug evaluation in the future preclinical studies. 展开更多
关键词 Dissolvable temporary barrier Hydrogel patterning Microfluidics Organ-on-a-chip Vascularization
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Patterning catalyst via inkjet printing to grow single-walled carbon nanotubes 认领 引用 被引量：3
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作者 Zeyao Zhang Yitan Li +6 位作者 Sheng Zhu Xiyan Liu Xiulan Zhao Meihui Li Haoyu Li Feng Yang Yan Li 《Chinese Chemical Letters》 SCIE CAS CSCD 2019年第2期505-508,共4页
Controlled growth of patterned single-walled carbon nanotubes (SWNTs) is an important issue in many applications. Herein, we demonstrated a method to pattern catalyst via inkjet printing for the growth of SWNTs, using... Controlled growth of patterned single-walled carbon nanotubes (SWNTs) is an important issue in many applications. Herein, we demonstrated a method to pattern catalyst via inkjet printing for the growth of SWNTs, using metal salt solutions as the inks and an ordinary office-use printer. We printed water solutions of cobalt acetate on hydrophilic Si substrates and grew high quality SWNT films. The composition of the precursor solutions and the hydrophilicity of the substrates were crucial factors to the patterning. 展开更多
关键词 Single-walled carbon nanotubes Inkjet printing Patterning Contact angle Chemical vapor deposition
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Patterning of Metal Halide Perovskite Thin Films and Functional Layers for Optoelectronic Applications 认领 引用 被引量：8
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作者 Jin‑Wook Lee Seong Min Kang 《Nano-Micro Letters》 SCIE EI CAS CSCD 2023年第10期494-513,共20页
In recent years,metal halide perovskites have received significant attention as materials for next-generation optoelectronic devices owing to their excellent optoelectronic properties.The unprecedented rapid evolution... In recent years,metal halide perovskites have received significant attention as materials for next-generation optoelectronic devices owing to their excellent optoelectronic properties.The unprecedented rapid evolution in the device performance has been achieved by gaining an advanced understanding of the composition,crystal growth,and defect engineering of perovskites.As device performances approach their theoretical limits,effective optical management becomes essential for achieving higher efficiency.In this review,we discuss the status and perspectives of nano to micron-scale patterning methods for the optical management of perovskite optoelectronic devices.We initially discuss the importance of effective light harvesting and light outcoupling via optical management.Subsequently,the recent progress in various patterningexturing techniques applied to perovskite optoelectronic devices is summarized by categorizing them into top-down and bottom-up methods.Finally,we discuss the perspectives of advanced patterningexturing technologies for the development and commercialization of perovskite optoelectronic devices. 展开更多
关键词 Perovskites Optoelectronics Light outcoupling Light harvesting Patterning
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Controlled Cell Patterning on Bioactive Surfaces with Special Wettability 认领 引用 被引量：2
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作者 Xiaofeng Zhou Jiaqian Li +3 位作者 Hongyan Sun Yi Hu Lufeng Che Zuankai Wang 《Journal of Bionic Engineering》 SCIE EI CSCD 2017年第3期440-447,共8页
The ability to control cell patterning on artificial substrates with various physicochemical properties is of essence for important implications in cytology and biomedical fields. Despite extensive progress, the abili... The ability to control cell patterning on artificial substrates with various physicochemical properties is of essence for important implications in cytology and biomedical fields. Despite extensive progress, the ability to control the cell-surface interaction is complicated by the complexity in the physiochemical features of bioactive surfaces. In particular, the manifesta- tion of special wettability rendered by the combination of surface roughness and surface chemistry further enriches the cell-surface interaction. Herein we investigated the cell adhesion behaviors of Circulating Tumor Cells （CTCs） on topog- raphically patterned but chemically homogeneous surfaces. Harnessing the distinctive cell adhesion on surfaces with different topography, we further explored the feasibility of controlled cell patterning using periodic lattices of alternative topographies. We envision that our method provides a designer＇s toolbox to manage the extracellular environment. 展开更多
关键词 cell patterning wettability superhydrophilic surface chemistry circulating tumor cells
Stable switching behavior of low-temperature ZrO2RRAM devices realized by combustion synthesis-assisted photopatterning 认领 引用 被引量：2
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作者 Bongho Jang Junil Kim +2 位作者 Jieun Lee Jaewon Jang Hyuk-Jun Kwon 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2024年第22期68-76,共9页
We have realized efficient photopatterning and high-quality ZrO2films through combustion synthesis and manufactured resistive random access memory(RRAM)devices with excellent switching stability at low temperatures... We have realized efficient photopatterning and high-quality ZrO2films through combustion synthesis and manufactured resistive random access memory(RRAM)devices with excellent switching stability at low temperatures(250℃)using these approaches.Combustion synthesis reduces the energy required for oxide conversion,thus accelerating the decomposition of organic ligands in the UV-exposed area,and promoting the formation of metal-oxygen networks,contributing to patterning.Thermal analysis confirmed a reduction in the conversion temperature of combustion precursors,and the prepared combustion ZrO2films exhibited a high proportion of metal-oxygen bonding that constitutes the oxide lattice,along with an amorphous phase.Furthermore,the synergistic effect of combustion synthesis and UV/O3-assisted photochemical activation resulted in patterned ZrO2films forming even more complete metal-oxygen networks.RRAM devices fabricated with patterned ZrO2films using combustion synthesis exhibited excellent switching characteristics,including a narrow resistance distribution,endurance of 103 cycles,and retention for 105 s at 85℃,despite low-temperature annealing.Combustion synthesis not only enables the formation of high-quality metal oxide films with low external energy but also facilitates improved photopatterning. 展开更多
关键词 ZrO2 Combustion Sol-gel RRAM Patterning
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Palladium-assisted Metal Patterning on Polyimide Surfaces 认领 引用 被引量：2
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作者 Shi-Long Zhong Bai-Yang Zhou +2 位作者 Xi-Rui Gu Ding-Shan Yu Xu-Dong Chen 《Chinese Journal of Polymer Science》 SCIE EI CAS CSCD 2022年第10期1287-1296,I0011,共10页
A novel method of patterning high precision copper conductive micropatterns on flexible polymer substrate(polyimide)is developed.We utilized the coordination effect between palladium salts and pyridine structures to f... A novel method of patterning high precision copper conductive micropatterns on flexible polymer substrate(polyimide)is developed.We utilized the coordination effect between palladium salts and pyridine structures to fix the palladium chloride(PdCl2)on the surface of polymer film while the 2,6-dimethylpyridine structures formed in the specific areas under ultraviolet light guaranteed the resolution of final patterns.Simultaneous thermal reduction of PdCl2 on the surface can be achieved in the process of thermal cyclization of the polymer substrate.As a consequence,the obtained polyimide(PI)film can be patterned with conductive copper micropatterns directly by electroless plating.In particular,we accomplished the deposition of high precision copper pattern with a minimum line width of 50μm and minimum line spacing of 20μm on PI thin films(thickness~10μm)by electroless plating.The prepared conductive copper micropatterns exhibit a low resistivity of 1.78μΩ·cm the same as the pure block copper.And the relationship between the structures of the polymer chains and the physical properties of polymer substrates,such as the dimensional stability,mechanical and dielectric properties were also discussed in detail.This simple and novel method of patterning metal on the polymer surface does not need to achieve the catalytic metal adhesion required for electroless plating at the cost of destroying the substrate surface and avoiding the introduction of unstable interlayers.This patterning method is compatible with the current roll-to-roll production process and can be used to develop high-performance micro-integrated circuits. 展开更多
关键词 Polyimide Metal patterning Electroless plating Palladium chloride Coordination effect
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Direct writing of silver microfiber with precise control on patterning for robust and flexible ultrahigh-performance transparent conductor 认领 引用 被引量：1
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作者 Tao Chen Heping Li +3 位作者 Jing Li Sanyuan Hu Pin Ye Youwei Yan 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2020年第12期103-112,共10页
Ultrafine silver fiber is an alternative to commercial indium tin oxide(ITO) as a new-generation flexible transparent conductor that can be used in flexible electronics.However,its primary limitation is the unrepeatab... Ultrafine silver fiber is an alternative to commercial indium tin oxide(ITO) as a new-generation flexible transparent conductor that can be used in flexible electronics.However,its primary limitation is the unrepeatable optoelectronic properties due to the disordered distribution of silver fibers.In this work,we report the in-situ direct writing of the silver microfiber pattern with high conductivity and transparency to attain a flexible transparent conductor.The silver network is composed of silver microfibers,which can be artificially designed and regularly patterned under the precise control of the fiber position and shape;this is crucial for regulating its optoelectronic properties.Herein,a high-performance conductor is achieved in the silver network with high stability.This novel conductor has a sheet resistance of 2 Ω sq-1at 90% transparency,which corre sponds to a high Figure of merit σdc/σopt=1742.The in-situ direct writing technique developed here is distinct from other fabrication methods because it requires no transfer steps,templates or heating.Further,this silver network is integrated into a light-printable rewritable device,and can be used as a wearable heater;this heater when driven by a 1.5 V battery attains a temperature of up to 55.6℃.Therefore,in-situ direct writing is expected to offer a new platform for facile,scalable,and ultralow-cost production of high-performance metal networks for flexible transparent conductors. 展开更多
关键词 Silver Transparent conductor Direct writing Patterning Transparent heater
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Chemical patterning enhanced by increasing quenching temperature in a medium-Mn steel 认领 引用 被引量：1
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作者 Chao Zhang Zhi-ping Xiong +2 位作者 De-zhen Yang Valeriy Dudko Xing-wang Cheng 《Journal of Iron and Steel Research International》 SCIE EI CAS CSCD 2023年第10期1916-1920,共5页
Chemical heterogeneity in high-temperature austenite is an effective way to tune the austenite-to-martensite transformation during cooling.The effect of quenching temperature on microstructure evolution is investigate... Chemical heterogeneity in high-temperature austenite is an effective way to tune the austenite-to-martensite transformation during cooling.The effect of quenching temperature on microstructure evolution is investigated when the high-temperature austenite is heterogeneous.After fast austenitization from partitioned pearlite consisting of Mn-enriched cementite and Mn-depleted ferrite in Fe-0.29C-3.76Mn-1.50Si(wt.%)steel,quenching to room temperature and quenching to 130℃followed by 400℃partitioning are both applied.With increasing quenching temperature from 25 to 130℃,the amount of heterogeneous microstructure(lamellar ghost pearlite)increases from 10.6%to 33.6%and the thickness of Mn-enriched retained austenite film is increased from 31.9±5.9 to 51.5±4.4 nm,indicating an enhancement of chemical patterning.It is probably ascribed to the reduction in driving force for austenite-to-martensite transformation,which requires a lower Mn content for austenite retention. 展开更多
关键词 Heterogeneous microstructure Phase transformation Retained austenite Quenching temperature Chemical patterning
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