Enhanced efficiency of dye-sensitized TiO2 solar cells (DSSC) by doping of metal ions

被引：261

作者：

Ko, KH ^{[1
]}

Lee, YC ^{[1
]}

Jung, YJ ^{[1
]}

机构：

[1] Ajou Univ, Dept Mat Sci & Engn, Suwon 442749, South Korea

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2005年 / 283卷 / 02期

关键词：

photovoltaic; dye-sensitized solar cell; TiO2; Al; W; dopants;

D O I：

10.1016/j.jcis.2004.09.009

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：

Doped TiO2 semiconductor powders were synthesized using Al and W as photovoltaic property-enhancing impurities. Al-doped TiO2 electrodes increased open-circuit voltage (V-OC), but reduced short-circuit current (I-SC). In contrast, W-doped TiO2 had an opposite effect. However, dye-sensitized solar cell efficiency fabricated with doped TiO2 was remarkably better than that of undoped TiO2. It seems that these phenomena were related to electrical surface-state modifications induced by metal-ion dopants. These modifications led to significant changes in powder aggregation, charge transfer kinetics, and dye adsorption characteristics. The highest efficiency was found by using (Al + W)-doped TiO2 nanopowders. (C) 2004 Elsevier Inc. All rights reserved.

引用

页码：482 / 487

页数：6

共 22 条

[1]

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

[2] Photosensitization of nanocrystalline ZnO films by bis(2,2'-bipyridine)(2,2'-bipyridine-4,4'-dicarboxylic acid)ruthenium(II) [J].

Bedja, I ;

Kamat, PV ;

Hua, X ;

Lappin, AG ;

Hotchandani, S .

LANGMUIR, 1997, 13 (08) :2398-2403

[3]

Brinker C. J., 1990, SOL GEL SCI PHYS CHE

[4] TiO2-coated nanoporous SnO2 electrodes for dye-sensitized solar cells [J].

Chappel, S ;

Chen, SG ;

Zaban, A .

LANGMUIR, 2002, 18 (08) :3336-3342

[5] Nanoporous SnO2 electrodes for dye-sensitized solar cells:: improved cell performance by the synthesis of 18 nm SnO2 colloids [J].

Chappel, S ;

Zaban, A .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2002, 71 (02) :141-152

[6] Photoelectrochemical cells [J].

Grätzel, M .

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

[7] Dye-sensitized solar cells [J].

Grätzel, M .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS, 2003, 4 (02) :145-153

[8] Interfacial recombination processes in dye-sensitized solar cells and methods to passivate the interfaces [J].

Gregg, BA ;

Pichot, F ;

Ferrere, S ;

Fields, CL .

JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (07) :1422-1429

[9] RU(II) sensitized Nb2O5 solar cell made by the sol-gel process [J].

Guo, P ;

Aegerter, MA .

THIN SOLID FILMS, 1999, 351 (1-2) :290-294

[10] POTENTIAL-DEPENDENT ELECTRON INJECTION IN NANOPOROUS COLLOIDAL ZNO FILMS [J].

HOYER, P ;

WELLER, H .

JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (38) :14096-14100

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