Investigation of perovskite-sensitized nanoporous titanium dioxide photoanodes with different thicknesses in perovskite solar cells

被引：75

作者：

Xiao, Yaoming ^{[1
]}

Han, Gaoyi ^{[1
]}

Chang, Yunzhen ^{[1
]}

Zhang, Ying ^{[1
]}

Li, Yanping ^{[1
]}

Li, Miaoyu ^{[1
]}

机构：

[1] Shanxi Univ, Inst Mol Sci, Key Lab Chem Biol & Mol Engn, Educ Minist,Innovat Ctr Chem & Mol Sci, Taiyuan 030006, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2015年 / 286卷

基金：

中国国家自然科学基金;

关键词：

In situ method; Thickness; Organic-inorganic perovskite; Photoanode; Perovskite solar cell; CH3NH3PBI3; TEMPERATURE; DEPOSITION; EFFICIENCY; CONVERSION;

D O I：

10.1016/j.jpowsour.2015.03.152

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Perovskite-sensitized nanoporous TiO2 films with different thicknesses are prepared by an in situ method, which are employed as photoanodes in perovskite solar cells (PSCs). The photoelectrochemical properties of different photoanodes are quantified by the ultraviolet to visible reflectance spectra, incident monochromatic photon-to-current conversion efficiency, and electrochemical impedance spectroscopy measurements. Results demonstrate that the thin photoanode has high electron lifetime for recombination, which can enhance the separation and transmission of the electron and hole. However, the sunlight utilization will decrease with reducing the photoanode thickness due to the small quantity of CH3NH3PbI3 filled into the photoanode to absorb sunlight. After optimization, PSC with 0.80 mu m of the photoanode thickness shows a superior cell efficiency of 12.22% without a hole transporting material. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：118 / 123

页数：6

共 33 条

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