Dye-sensitized solar cells fabricated by electrospray coating using TiO2 nanocrystal dispersion solution

被引：27

作者：

Fujimoto, M ^{[1
]}

Kado, T ^{[1
]}

Takashima, W ^{[1
]}

Kaneto, K ^{[1
]}

Hayase, S ^{[1
]}

机构：

[1] Kyushu Inst Technol, Grad Sch Life Sci & Engn, Wakamatsu Ku, Kitakyushu, Fukuoka 8080196, Japan

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2006年 / 153卷 / 05期

关键词：

D O I：

10.1149/1.2179368

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Dye-sensitized solar cells (DSCs) were fabricated by an electrospray coating method using TiO2 nanocrystal dispersion (P25) in water (DSC-ESC). They were compared with DSCs prepared by conventional coating methods (DSC-COAT). The former had higher short-circuit current (J(SC)) than the latter. Electron lifetime and electron diffusion coefficient in TiO2 layers did not vary largely between the two DSCs. Large differences were not observed between them in terms of the amount of dye molecules adsorbed on TiO2. Differences were observed only for limiting currents (I-3(-) diffusion) through TiO2 layers. The limiting current for DSC-ESC was higher than that of DSC-COAT. Considering the previous reports on fractal structures prepared by the ESC method and the fact that needle-like TiO2 tends to grow on deposited TiO2 needles by using the ESC method, we conclude that ionic paths are formed better in TiO2 layers of DSC-ESC than in those of DSC-COAT. (c) 2006 The Electrochemical Society.

引用

页码：A826 / A829

页数：4

共 48 条

[21] Anomalous increase in photocurrent density for quasi-solid dye sensitized solar cells by addition of tetra(bromomethyl)benzene [J].

Mikoshiba, S ;

Murai, S ;

Sumino, H ;

Hayase, S .

CHEMISTRY LETTERS, 2002, (09) :918-919

[22] Efficient nonsintering type dye-sensitized photocells based on electrophoretically deposited TiO2 layers [J].

Miyasaka, T ;

Kijitori, Y ;

Murakami, TN ;

Kimura, M ;

Uegusa, S .

CHEMISTRY LETTERS, 2002, (12) :1250-1251

[23] Quasi-solid dye sensitised solar cells filled with phase-separated chemically cross-linked ionic gels [J].

Murai, S ;

Mikoshiba, S ;

Sumino, H ;

Kato, T ;

Hayase, S .

CHEMICAL COMMUNICATIONS, 2003, (13) :1534-1535

[24] EFFICIENT PHOTO-HOLE INJECTION FROM ADSORBED CYANINE DYES INTO ELECTRODEPOSITED COPPER(I) THIOCYANATE THIN-FILMS [J].

OREGAN, B ;

SCHWARTZ, DT .

CHEMISTRY OF MATERIALS, 1995, 7 (07) :1349-1354

[25] Efficient dye-sensitized charge separation in a wide-band-gap p-n heterojunction [J].

ORegan, B ;

Schwartz, DT .

JOURNAL OF APPLIED PHYSICS, 1996, 80 (08) :4749-4754

[26] The performance and stability of ambient temperature molten salts for solar cell applications [J].

Papageorgiou, N ;

Athanassov, Y ;

Armand, M ;

Bonhote, P ;

Pettersson, H ;

Azam, A ;

Gratzel, M .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (10) :3099-3108

[27] An iodine/triiodide reduction electrocatalyst for aqueous and organic media [J].

Papageorgiou, N ;

Maier, WF ;

Gratzel, M .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (03) :876-884

[28] Electron transport and back reaction in dye sensitised nanocrystalline photovoltaic cells [J].

Peter, LM ;

Wijayantha, KGU .

ELECTROCHIMICA ACTA, 2000, 45 (28) :4543-4551

[29] Application of PEO based gel network polymer electrolytes in dye-sensitized photoelectrochemical cells [J].

Ren, YJ ;

Zhang, ZC ;

Fang, SB ;

Yang, MZ ;

Cai, SM .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2002, 71 (02) :253-259

[30] PREPARATION OF ORGANIC THIN-FILMS BY AN ELECTROSPRAY TECHNIQUE .1. CRYSTAL FORMS AND THEIR ORIENTATION IN POLY(VINYLIDENE FLUORIDE) FILMS [J].

SAKATA, J ;

MOCHIZUKI, M .

THIN SOLID FILMS, 1991, 195 (1-2) :175-184

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