Enhanced power conversion efficiency of dye-sensitized solar cells with samarium doped TiO2 photoanodes

被引:14
作者
Liu, Meihua [1 ]
Hou, Yuchen [1 ]
Qu, Xiaofei [1 ]
机构
[1] Qingdao Univ Sci & Technol, Coll Mat Sci & Engn, Qingdao 266042, Peoples R China
基金
中国国家自然科学基金;
关键词
PHOTOVOLTAIC PERFORMANCE; LOW-COST; ENERGY-CONVERSION; HOLLOW SPHERES; ELECTRODE; INCREASE; DSSC; SM3+;
D O I
10.1557/jmr.2017.357
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this study, TiO2 photoanodes doped with samarium ions via a method of hydrothermal treatment were used to fabricate dye-sensitized solar cells (DSSCs). Different doping concentrations were investigated on the effects of the cell's performance. Some techniques including XRD, scanning electron microscopy, HRTEM, XPS, UV-Vis, photoluminescence were used to characterize the morphology, structure, and optic properties of the prepared photoanodes. The photovoltaic performance of the fabricated cells was further evaluated by measuring the current density-voltage (J-V) curves. It was found that: (1) The down-conversion luminescence effect derived from samarium doping could enhance the light-harvesting ability. (2) Compared with the undoped sample, the samarium-doped cells exhibited enhanced photovoltaic performance. Among the cells with different doping concentrations, the cell TiO2:0.015 Sm showed the best power conversion efficiency of 6.08% with a high open-circuit voltage (V-oc) and a short-circuit current density (J(sc)).
引用
收藏
页码:3469 / 3476
页数:8
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