A gel-state dye-sensitized hierarchically structured ZnO solar cell: Retention of power conversion efficiency and durability
A gel-state dye-sensitized hierarchically structured ZnO solar cell: Retention of power conversion efficiency and durability
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DOI：
10.1016/j.electacta.2013.10.129
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发表时间：
2013-12
影响因子：
6.6
通讯作者：
Shiqing Bi;Yan‐Zhen Zheng;Hai-yang Ding;Xia Tao;Jianfeng Chen
中科院分区：
文献类型：
--
作者：
Shiqing Bi;Yan‐Zhen Zheng;Hai-yang Ding;Xia Tao;Jianfeng Chen
A gel-state dye-sensitized hierarchically structured ZnO solar cell (ZnO-DSC) was fabricated by using dissoluble polystyrene (PS) nanobeads on Pt counter electrode as a gelator and ZnO nanocrystalline aggregates as a photo anode. Under an optimized acetonitrile/valeronitrile mixture solvent i.e. 85%v/v, the photovoltaic conversion efficiency (PCE) of the gel-state ZnO-DSC reached maximum up to 4.08%, comparable to a liquid electrolyte based DSC with value of 4.12% upon being measured under 1 sun illumination. The gel-state ZnO cell performance was also characterized and discussed byJ–Vdata, IPCE, and EIS. The decay test results showed that the gel electrolyte based DSC possessed better photovoltaic stability than the liquid electrolyte based DSC in whether indoors or outdoors. Particularly, the PCE of the gel electrolyte based DSC decayed only 12% after 20 days under full sunlight outdoors, superior to the liquid electrolyte based DSC with an efficiency loss of 37%.
