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Effect of KOH treatment on structural and photovoltaic properties of ZnO nanorod arrays 认领 引用 被引量：3
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作者 周艺 李荡 +3 位作者 黄燕 何文红 肖斌 李宏 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2012年第11期2736-2741,共6页
ZnO nanorod arrays （NRs） were synthesized on the fluorine-doped SnO2 transparent conductive glass （FTO） by a simple chemical bath deposition （CBD） method combined with alkali-etched method in potassium hydroxide... ZnO nanorod arrays （NRs） were synthesized on the fluorine-doped SnO2 transparent conductive glass （FTO） by a simple chemical bath deposition （CBD） method combined with alkali-etched method in potassium hydroxide （KOH） solution. X-ray diffraction （XRD）, scanning electron microscopy （SEM） and current-voltage （I-V） curve were used to characterize the structure, morphologies and optoelectronic properties. The results demonstrated that ZnO NRs had wurtzite structures, the morphologies and photovoltaic properties of ZnO NRs were closely related to the concentration of KOH and etching time, well-aligned and uniformly distributed ZnO NRs were obtained after etching with 0.1 mol/L KOH for 1 h. ZnO NRs treated by KOH had been proved to have superior photovoltaic properties compared with high density ZnO NRs. When using ZnO NRs etched with 0.1 mol/L KOH for 1 h as the anode of solar cell, the conversion efficiency, short circuit current and open circuit voltage, compared with the unetched ZnO NRs, increased by 0.71%, 2.79 mA and 0.03 V, respectively. 展开更多
关键词 ZnO nanorod arrays SnO2 transparent conductive glass alkali etching structural properties photovoltaic properties solar cells
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Mechanical properties of individual core-shell-structured Sn O2@C nanofibers investigated by atomic force microscopy and finite element method 认领 引用
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作者 LIU Xing LI KeFeng +7 位作者 DUAN XiaoLu HUANG YuTing LI Shuai LIU YiLin XU Fu LI Zheng ZHANG Ping DING YanHuai 《Science China(Technological Sciences)》 SCIE EI CAS CSCD 2018年第8期1144-1149,共6页
Although SnO_2-based nanomaterials used to be considered as being extraordinarily versatile for application to nanosensors,microelectronic devices, lithium-ion batteries, supercapacitors and other devices, the functio... Although SnO_2-based nanomaterials used to be considered as being extraordinarily versatile for application to nanosensors,microelectronic devices, lithium-ion batteries, supercapacitors and other devices, the functionalities of SnO_2-based nanomaterials are severely limited by their intrinsic vulnerabilities. Facile electrospinning was used to prepare SnO_2 nanofibers coated with a protective carbon layer. The mechanical properties of individual core-shell-structured SnO_2@C nanofibers were investigated by atomic force microscopy and the finite element method. The elastic moduli of the carbon-coated SnO_2 nanofibers remarkably increased, suggesting that coating SnO_2 nanofibers with carbon could be an effective method of improving their mechanical properties. 展开更多
关键词 SnO2 nanofiber core-shell structure elastic modulus atomic force microscopy finite element method
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Core-shell TiO2/ZnO nanorod array films on FTO:Two-step synthesis and improved ethanol sensing performance 认领 引用 被引量：1
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作者 Xiangli An Bowen Zhang +4 位作者 Chongyang Wang Zhiyong Zhao Saisai Zhang Hari Bala Zhanying Zhang 《Journal of Materiomics》 SCIE CSCD 2023年第4期725-734,共10页
In this work,highly regular TiO2nanorod array films were synthesized in situ on FTO by a facile hydrothermal method,and then ZnO shell layers were grown on the surface of the nanorods to form a coreshell structure ... In this work,highly regular TiO2nanorod array films were synthesized in situ on FTO by a facile hydrothermal method,and then ZnO shell layers were grown on the surface of the nanorods to form a coreshell structure via an ion-layer adsorption-reaction way.Compared to the TiO2nanorods,the prepared TiO2/ZnO nanocomposites exhibited enhanced ethanol sensing performances,including a low working temperature,higher sensitivity,and faster response capability.The optimum sensor based on 2c-TiO2/ZnO exhibited the maximum response value of 30.85 toward 50×10-6C2H5OH at 340℃,which was almost 4.15 times higher than that of the TiO2sensor.The improved ethanol sensing mechanism was discussed in relation to the unique nanorod array structure and the heterojunctions between TiO2and ZnO. 展开更多
关键词 Core-shell structure TiO2/ZnO Nanorod arrays Heterojunction Gas sensor
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