Dye-sensitized solar cells using ZnO nanotips and Ga-doped ZnO films

被引：87

作者：

Chen, Hanhong ^{[1
]}

Du Pasquier, Aurelien ^{[2
]}

Saraf, Gaurav ^{[1
]}

Zhong, Jian ^{[1
]}

Lu, Yicheng ^{[1
]}

机构：

[1] Rutgers State Univ, Dept Elect & Comp Engn, Piscataway, NJ 08854 USA

[2] Rutgers State Univ, Dept Mat Sci & Engn, N Brunswick, NJ 08902 USA

来源：

SEMICONDUCTOR SCIENCE AND TECHNOLOGY | 2008年 / 23卷 / 04期

关键词：

D O I：

10.1088/0268-1242/23/4/045004

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Ga-doped ZnO (GZO) transparent conducting films and well-aligned ZnO nanotips were sequentially grown on a glass substrate using metal-organic chemical vapor deposition (MOCVD). The morphology control of ZnO from dense films to nanotips was realized through temperature-modulated growth. The ZnO nanotips/GZO structure was sensitized with dye N719 to form photoelectrochemical cells. It is found that the power conversion efficiency linearly increases with the length of ZnO nanotips. For the 1.0 cm(2) dye-sensitized solar cell built from 4.8 mu m ZnO nanotips, a peak incident photo-to-current conversion efficiency of 79% (at similar to 530 nm) and a power conversion efficiency of 0.77% under the illumination of one sun-simulated sunlight were achieved. UV light harvesting directly by ZnO was observed. The I-V characteristics of the cells were analyzed using a one-diode equivalent circuit model.

引用

页数：6

共 29 条

[1] PHOTO-VOLTAIC PROPERTIES OF ZNO-CDTE HETEROJUNCTIONS PREPARED BY SPRAY PYROLYSIS [J].

ARANOVICH, JA ;

GOLMAYO, D ;

FAHRENBRUCH, AL ;

BUBE, RH .

JOURNAL OF APPLIED PHYSICS, 1980, 51 (08) :4260-4268

[2] Doped-fluorine on electrical and optical properties of tin oxide films grown by ozone-assisted thermal CVD [J].

Bae, J. W. ;

Lee, S. W. ;

Yeom, G. Y. .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2007, 154 (01) :D34-D37

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

Baxter, JB ;

Aydil, ES .

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

[4] Metallic conductivity and metal-semiconductor transition in Ga-doped ZnO [J].

Bhosle, V ;

Tiwari, A ;

Narayan, J .

APPLIED PHYSICS LETTERS, 2006, 88 (03) :1-3

[5] Properties of ZnO nanotips selectively grown by MOCVD [J].

Chen, HH ;

Zhong, J ;

Saraf, G ;

Zhang, Z ;

Lu, YC ;

Fetter, LA ;

Pai, CS .

NANOFABRICATION: TECHNOLOGIES, DEVICES AND APPLICATIONS, 2004, 5592 :164-169

[6] COLUMNAR MICROSTRUCTURE IN VAPOR-DEPOSITED THIN-FILMS [J].

DIRKS, AG ;

LEAMY, HJ .

THIN SOLID FILMS, 1977, 47 (03) :219-233

[7] Dye sensitized solar cells using well-aligned zinc oxide nanotip arrays [J].

Du Pasquier, Aurelien ;

Chen, Hanhong ;

Lu, Yicheng .

APPLIED PHYSICS LETTERS, 2006, 89 (25)

[8] Fast electron transport in metal organic vapor deposition grown dye-sensitized ZnO nanorod solar cells [J].

Galoppini, Elena ;

Rochford, Jonathan ;

Chen, Hanhong ;

Saraf, Gaurav ;

Lu, Yicheng ;

Hagfeldt, Anders ;

Boschloo, Gerrit .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (33) :16159-16161

[9] Photoelectrochemical cells [J].

Grätzel, M .

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

[10] Regularly shaped, single-crystalline ZnO nanorods with wurtzite structure [J].

Guo, L ;

Ji, YL ;

Xu, HB ;

Simon, P ;

Wu, ZY .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (50) :14864-14865

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