Zn-doped TiO2 electrodes in dye-sensitized solar cells for enhanced photocurrent

被引：68

作者：

Huang, Fuzhi ^{[1
,2
]}

Li, Qi ^{[3
]}

Thorogood, Gordon J. ^{[4
]}

Cheng, Yi-Bing ^{[1
]}

Caruso, Rachel A. ^{[2
,5
]}

机构：

[1] Monash Univ, Dept Mat Engn, Melbourne, Vic 3800, Australia

[2] Univ Melbourne, Sch Chem, PFPC, Melbourne, Vic 3010, Australia

[3] Monash Univ, Sch Chem, Melbourne, Vic 3800, Australia

[4] Australian Nucl Sci & Technol Org, Inst Mat Engn, Kirrawee Dc, NSW 2232, Australia

[5] CSIRO Mat Sci & Engn, Clayton, Vic 3169, Australia

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 33期

基金：

澳大利亚研究理事会;

关键词：

PHOTOVOLTAIC PERFORMANCE; RECOMBINATION DYNAMICS; CHARGE-TRANSPORT; THIN-FILMS; EFFICIENCY; DEPOSITION; INJECTION; LAYERS;

D O I：

10.1039/c2jm32409a

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：

Porous nanocrystalline Zn/TiO2 materials were synthesized employing agarose gel as a template, achieving a maximum Zn-doping concentration of around 2 at.%. Low Zn-doping concentrations ( e. g. <1 at.%) improved the photocurrent of the dye-sensitized solar cell when these materials were applied as the working electrode, as n-type doping favors electron transportation. Compared to the efficiency of the undoped sample, 6.7%, the 0.5 at.% sample showed a much higher efficiency of 7.6%. Further doping decreases the performance of the device as it introduces deficiencies that act as electron-hole recombination centers.

引用

页码：17128 / 17132

页数：5

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