Indium tin oxide as a semiconductor material in efficient p-type dye-sensitized solar cells

被引：88

作者：

Yu, Ze ^{[1
]}

Perera, Ishanie R. ^{[2
]}

Daeneke, Torben ^{[3
,4
]}

Makuta, Satoshi ^{[5
]}

Tachibana, Yasuhiro ^{[5
,6
]}

Jasieniak, Jacek J. ^{[1
,3
]}

Mishra, Amaresh ^{[7
]}

Baeuerle, Peter ^{[7
]}

Spiccia, Leone ^{[2
]}

Bach, Udo ^{[1
,3
,8
]}

机构：

[1] Monash Univ, Dept Mat Sci & Engn, Room 108,Res Way,Clayton Campus, Clayton, Vic 3800, Australia

[2] Monash Univ, Sch Chem, Room 105,Res Way,Clayton Campus, Clayton, Vic 3800, Australia

[3] CSIRO, Mat Sci & Engn, Flexible Elect Theme, Clayton, Vic, Australia

[4] RMIT Univ, Sch Elect & Comp Engn, Melbourne, Vic, Australia

[5] RMIT Univ, Sch Aerosp Mech & Mfg Engn, Bundoora, Vic, Australia

[6] Japan Sci & Technol Agcy JST, Saitama, Japan

[7] Univ Ulm, Inst Organ Chem & Adv Mat 2, Ulm, Germany

[8] Melbourne Ctr Nanofabricat, Clayton, Vic, Australia

来源：

NPG ASIA MATERIALS | 2016年 / 8卷

基金：

澳大利亚研究理事会;

关键词：

THIN-FILMS; DEPOSITION; DEVICES; IN2O3; TIO2;

D O I：

10.1038/am.2016.89

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Indium tin oxide (ITO) is a well-known n-type degenerate semiconductor with a wide variety of electronic and optoelectronic applications. Herein ITO is utilized as a photocathode material in p-type dye-sensitized solar cells in place of the commonly applied and highly colored nickel oxide (NiO) semiconductor. The application of mesoporous ITO photocathodes, [Fe(acac) 3](0/-) as a redox mediator and a new organic dye afforded an impressive energy conversion efficiency of 1.96 +/- 0.12%. Comparative transient absorption spectroscopic studies indicated that the recombination rate at the ITO-electrolyte interface is two orders of magnitude faster than that of NiO. Analysis of the operation mechanism of the ITO-based devices with ultraviolet photon spectroscopy and photoelectron spectroscopy in air showed that ITO exhibits a significant local density of states arising below -4.8 eV, which enables electron transfer to occur from the ITO to the excited dye, thus giving rise to the sustained photocathodic current.

引用

页码：e305 / e305

页数：7

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