The effect of TiCl4-treated TiO2 compact layer on the performance of dye-sensitized solar cell

被引：142

作者：

Choi, Hongsik ^{[1
]}

Nahm, Changwoo ^{[1
]}

Kim, Jongmin ^{[1
]}

Moon, Joonhee ^{[1
]}

Nam, Seunghoon ^{[1
]}

Jung, Dae-Ryong ^{[1
]}

Park, Byungwoo ^{[1
]}

机构：

[1] Seoul Natl Univ, WCU Hybrid Mat Program, Dept Mat Sci & Engn, Res Inst Adv Mat, Seoul 151744, South Korea

来源：

CURRENT APPLIED PHYSICS | 2012年 / 12卷 / 03期

基金：

新加坡国家研究基金会;

关键词：

Dye-sensitized solar cells; Compact layer; Blocking layer; TiCl4; treatment; Solar cells; ELECTROCHEMICAL PROPERTIES; LOW-COST; RECOMBINATION; ELECTROLYTE; EFFICIENCY; CONVERSION; ACID;

D O I：

10.1016/j.cap.2011.10.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to prevent the charge recombination at the interface between the transparent-conducting oxide (TCO) substrate and electrolyte, a TiO2 compact layer was deposited on the substrate by hydrolysis of TiCl4 aqueous solution. Optimum thickness of the compact layer was found to be similar to 25 nm, which showed similar to 24% increase in the power-conversion efficiency compared with the bare cell. Impedance spectra indicated that the interfacial charge-transfer resistance of TCO/electrolyte interface was increased by more than a factor of three with the TiO2 compact layer at 0.4 V. Moreover, the electron-carrier lifetime of the 25 nm-deposited cell was improved by a factor of five compared with the bare cell. (C) 2011 Elsevier B. V. All rights reserved.

引用

收藏

页码：737 / 741

页数：5

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