Ta doping for an enhanced efficiency of TiO2 nanotube based dye-sensitized solar cells

被引：31

作者：

Lee, Kiyoung ^{[1
]}

Schmuki, Patrik ^{[1
]}

机构：

[1] Univ Erlangen Nurnberg, Dept Mat Sci & Engn, LKO WW4, D-91058 Erlangen, Germany

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2012年 / 25卷

关键词：

TiO2; nanotubes; Doping; DSSCs; Anodization; TRANSPARENT CONDUCTING OXIDE; DOPED TIO2; RECOMBINATION; DEPOSITION; TRANSPORT; ARRAYS; FILMS;

D O I：

10.1016/j.elecom.2012.08.026

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

To doped TiO2 nanotube layers were fabricated by anodization of different Ti-Ta alloys with Ta contents of 0.03, 0.1 and 0.4 at.%. For all layers well defined nanotubular structures could be formed. The layers were then characterized in dye-sensitized solar cells. Under optimized conditions, that is for a 0.1 at.% Ta alloy, the solar cell efficiency could be enhanced by 25% compared to non-doped TiO2 nanotubes. Intensity modulated photocurrent spectra (IMPS) and intensity modulated photovoltage spectra (IMVS) measurements performed with the solar cells indicate that the beneficial effect is due to suppression of recombination effects. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：11 / 14

页数：4

共 21 条

[1] Highly efficient dye-sensitized solar cells with a titania thin-film electrode composed of a network structure of single-crystal-like TiO2 nanowires made by the "oriented attachment" mechanism [J].

Adachi, M ;

Murata, Y ;

Takao, J ;

Jiu, JT ;

Sakamoto, M ;

Wang, FM .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (45) :14943-14949

[2] Nanowire-based dye-sensitized solar cells [J].

Baxter, JB ;

Aydil, ES .

APPLIED PHYSICS LETTERS, 2005, 86 (05) :1-3

[3] Atomic Layer Deposition of Ta-doped TiO2 Electrodes for Dye-Sensitized Solar Cells [J].

Choi, Ji-Hwan ;

Kwon, Se-Hun ;

Jeong, Young-Keun ;

Kim, Il ;

Kim, Kwang-Ho .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2011, 158 (06) :B749-B753

[4] Band-gap engineering of metal oxides for dye-sensitized solar cells [J].

Duerr, M. ;

Rosselli, S. ;

Yasuda, A. ;

Nelles, G. .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (43) :21899-21902

[5] Spray deposition of electrospun TiO2 nanorods for dye-sensitized solar cell [J].

Fujihara, K. ;

Kumar, A. ;

Jose, R. ;

Ramakrishna, S. ;

Uchida, S. .

NANOTECHNOLOGY, 2007, 18 (36)

[6] A transparent metal:: Nb-doped anatase TiO2 -: art. no. 252101 [J].

Furubayashi, Y ;

Hitosugi, T ;

Yamamoto, Y ;

Inaba, K ;

Kinoda, G ;

Hirose, Y ;

Shimada, T ;

Hasegawa, T .

APPLIED PHYSICS LETTERS, 2005, 86 (25) :1-3

[7] Solar energy conversion by dye-sensitized photovoltaic cells [J].

Grätzel, M .

INORGANIC CHEMISTRY, 2005, 44 (20) :6841-6851

[8]

Hebert KR, 2012, NAT MATER, V11, P162, DOI [10.1038/nmat3185, 10.1038/NMAT3185]

[9] Ta-doped anatase TiO2 epitaxial film as transparent conducting oxide [J].

Hitosugi, T ;

Furubayashi, Y ;

Ueda, A ;

Itabashi, K ;

Inaba, K ;

Hirose, Y ;

Kinoda, G ;

Yamamoto, Y ;

Shimada, T ;

Hasegawa, T .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2005, 44 (33-36) :L1063-L1065

[10] Fabrication of TiO2-based transparent conducting oxide films on glass by pulsed laser deposition [J].

Hitosugi, Taro ;

Ueda, Atsuki ;

Furubayashi, Yutaka ;

Hirose, Yasushi ;

Konuma, Seiji ;

Shimada, Toshihiro ;

Hasegawa, Tetsuya .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2007, 46 (1-3) :L86-L88

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