Effective charge collection in dye-sensitized nanocrystalline TiO2

被引：4

作者：

Yanagida, Masatoshi ^{[1
,2
]}

Numata, Youhei ^{[2
]}

Yoshimatsu, Keiichi ^{[2
]}

Satoh, Shin ^{[2
]}

Han, Liyuan ^{[2
]}

机构：

[1] Natl Inst Mat Sci, Global Res Ctr Environm & Energy Based Nanomat Sc, Tsukuba, Ibaraki 3050047, Japan

[2] Natl Inst Mat Sci, Photovolta Mat Res Unit, Tsukuba, Ibaraki 3050047, Japan

来源：

ADVANCES IN NATURAL SCIENCES-NANOSCIENCE AND NANOTECHNOLOGY | 2013年 / 4卷 / 01期

关键词：

dye-sensitized solar cells; nanocrystalline; TiO2; electron transport; charge collection;

D O I：

10.1088/2043-6262/4/1/015006

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effective charge collection in dye-sensitized solar cells (DSCs) is an important factor to improve the efficiency. Here, we report the comparison of three types of structures in DSCs. One type of structure is a sandwich-type DSC (SW-DSC), in which the TiO2 film is sandwiched between a TCO glass front electron-collection electrode and a sputtered Ti back collection electrode. The second is a normal DSC (N-DSC), which has no back electrode. The third is a back-contact-type DSC (BC-DSC), in which a sputtered Ti back electrode is deposited on a TiO2 film on the opposite side of the normal glass as an optical window. The photocurrent response of an SW-DSC is the fastest of the three structures due to using intensity modulated photocurrent spectroscopy, which can be explained by the electron diffusion model. The model shows that the SW-DSC is a favorable structure for effective charge collection in DSCs.

引用

页数：8

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