Mesoporous TiO2 nanowires as bi-functional materials for dye-sensitized solar cells

被引：11

作者：

Lee, Sangwook ^{[2
]}

Han, Gill Sang ^{[1
]}

Lee, Ji-Hae ^{[3
]}

Lee, Jung-Kun ^{[4
]}

Jung, Hyun Suk ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Sch Adv Mat Sci & Engn, Suwon 440746, South Korea

[2] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94709 USA

[3] Seoul Semicond, Ansan 425851, South Korea

[4] Univ Pittsburgh, Dept Mech Engn & Mat Sci, Pittsburgh, PA 15261 USA

来源：

ELECTROCHIMICA ACTA | 2012年 / 74卷

基金：

新加坡国家研究基金会;

关键词：

Dye-sensitized solar cell; TiO2; Nanowire; Scattering; Bimodal structure; EFFICIENCY; SCATTERING;

D O I：

10.1016/j.electacta.2012.04.008

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A bimodal structured TiO2 nanowire (NW) was synthesized via metal glycolate-mediated method. Each large NW was comprised of a few nanometers-sized anatase particles, which led to a high specific surface area, 50.4 m(2) g(-1). When the bimodal TiO2 NWs were coated onto a spherical nanoparticle-based active layer of the photoelectrode for a dye-sensitized solar cell, the reflectance of the photoelectrode increased by 4-times, compared to a bare active layer. The TiO2 NWs increased quantum efficiency of the dye-sensitized solar cell, from 400 to 800 nm wavelengths, which was attributed to both the light-scattering and charge generating effects due to the capability of reflecting incident light and adsorbing large amount of dye molecules. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：83 / 86

页数：4

共 20 条

[1]

Barbe CJ, 1997, J AM CERAM SOC, V80, P3157, DOI 10.1111/j.1151-2916.1997.tb03245.x

[2] Computer simulations of light scattering and absorption in dye-sensitized solar cells [J].

Ferber, J ;

Luther, J .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 1998, 54 (1-4) :265-275

[3] Mie theory for light scattering by a spherical particle in an absorbing medium [J].

Fu, Q ;

Sun, WB .

APPLIED OPTICS, 2001, 40 (09) :1354-1361

[4] Photoelectrochemical cells [J].

Grätzel, M .

NATURE, 2001, 414 (6861) :338-344

[5] Interfacial processes in the dye-sensitized solar cell [J].

Gregg, BA .

COORDINATION CHEMISTRY REVIEWS, 2004, 248 (13-14) :1215-1224

[6] Influence of scattering layers on efficiency of dye-sensitized solar cells [J].

Hore, S ;

Vetter, C ;

Kern, R ;

Smit, H ;

Hinsch, A .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2006, 90 (09) :1176-1188

[7] Highly-efficient metal-free organic dyes for dye-sensitized solar cells [J].

Horiuchi, T ;

Miura, H ;

Uchida, S .

CHEMICAL COMMUNICATIONS, 2003, (24) :3036-3037

[8] Dual-Function Scattering Layer of Submicrometer-Sized Mesoporous TiO2 Beads for High-Efficiency Dye-Sensitized Solar Cells [J].

Huang, Fuzhi ;

Chen, Dehong ;

Zhang, Xiao Li ;

Caruso, Rachel A. ;

Cheng, Yi-Bing .

ADVANCED FUNCTIONAL MATERIALS, 2010, 20 (08) :1301-1305

[9] Platinum-free tungsten carbides as an efficient counter electrode for dye sensitized solar cells [J].

Jang, Jum Suk ;

Ham, Dong Jin ;

Ramasamy, Easwaramoorthi ;

Lee, Jinwoo ;

Lee, Jae Sung .

CHEMICAL COMMUNICATIONS, 2010, 46 (45) :8600-8602

[10] Ethylene glycol-mediated synthesis of metal oxide nanowires [J].

Jiang, XC ;

Wang, YL ;

Herricks, T ;

Xia, YN .

JOURNAL OF MATERIALS CHEMISTRY, 2004, 14 (04) :695-703

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