ZnO nanowire/TiO2 nanoparticle photoanodes prepared by the ultrasonic irradiation assisted dip-coating method

被引：43

作者：

Gan, Xiaoyan ^{[1
]}

Li, Xiaomin ^{[1
]}

Gao, Xiangdong ^{[1
]}

Zhuge, Fuwei ^{[1
,2
]}

Yu, Weidong ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Shanghai 200050, Peoples R China

来源：

THIN SOLID FILMS | 2010年 / 518卷 / 17期

关键词：

Zinc oxide; Titanium dioxide; Hybrid Photoanodes; Ultrasonic treatment; Dye-sensitized solar cell; Scanning electron microscopy; Electrical properties and measurements; EFFICIENCY;

D O I：

10.1016/j.tsf.2010.01.043

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Hybrid ZnO/TiO2 photoanodes for dye-sensitized solar cells were prepared by combining ZnO nanowire (NW) arrays and TiO2 nanoparticles (NPs) with the assistance of the ultrasonic irradiation assisted dip-coating method. Results show that the ultrasonic irradiation was an efficient way to promote the gap filling of TiO2 NPs in the interstices of ZnO NWs. Hybrid ZnO NW/TiO2 NP electrodes prepared with ultrasonic treatment exhibited better gap filling efficiency and higher visible absorptance. The overall conversion efficiency of the hybrid electrode was 0.79%, representing 35% improvement compared with that of the traditional one (0.58%). The enlarged surface area and improved attachments of TiO2 NPs onto the walls of ZnO NWs induced by the application of ultrasonic irradiation may be the underlying reason. Electrochemical impedance spectroscopy measurements indicated that hybrid electrodes combined the advantages of improved electron transport along the ZnO NWs and increased surface area provided by infiltrated TiO2 NPs, both of which are responsible for the improved cell efficiency. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：4809 / 4812

页数：4

共 16 条

[1] Determination of parameters of electron transport in dye-sensitized solar cells using electrochemical impedance spectroscopy [J].

Adachi, Motonari ;

Sakamoto, Masaru ;

Jiu, Jinting ;

Ogata, Yukio ;

Isoda, Seiji .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (28) :13872-13880

[2] Dye-sensitized solar cells based on semiconductor morphologies with ZnO nanowires [J].

Baxter, JB ;

Aydil, ES .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2006, 90 (05) :607-622

[3] Photoelectrochemical cells [J].

Grätzel, M .

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

[4] High-bendability flexible dye-sensitized solar cell with a nanoparticle-modified ZnO-nanowire electrode [J].

Jiang, C. Y. ;

Sun, X. W. ;

Tan, K. W. ;

Lo, G. Q. ;

Kyaw, A. K. K. ;

Kwong, D. L. .

APPLIED PHYSICS LETTERS, 2008, 92 (14)

[5] Improved dye-sensitized solar cells with a ZnO-nanoflower photoanode [J].

Jiang, C. Y. ;

Sun, X. W. ;

Lo, G. Q. ;

Kwong, D. L. ;

Wang, J. X. .

APPLIED PHYSICS LETTERS, 2007, 90 (26)

[6]

KU CH, 2007, APPL PHYS LETT, V97

[7] Chemical bath deposition of ZnO nanowire-nanoparticle composite electrodes for use in dye-sensitized solar cells [J].

Ku, Chen-Hao ;

Wu, Jih-Jen .

NANOTECHNOLOGY, 2007, 18 (50)

[8] Wet-chemical route to ZnO nanowire-layered basic zinc acetate/ZnO nanoparticle composite film [J].

Ku, Chen-Hao ;

Yang, Hung-Hsien ;

Chen, Guan-Ren ;

Wu, Jih-Jen .

CRYSTAL GROWTH & DESIGN, 2008, 8 (01) :283-290

[9] Nanowire dye-sensitized solar cells [J].

Law, M ;

Greene, LE ;

Johnson, JC ;

Saykally, R ;

Yang, PD .

NATURE MATERIALS, 2005, 4 (06) :455-459

[10] CONVERSION OF LIGHT TO ELECTRICITY BY CIS-X2BIS(2,2'-BIPYRIDYL-4,4'-DICARBOXYLATE)RUTHENIUM(II) CHARGE-TRANSFER SENSITIZERS (X = CL-, BR-, I-, CN-, AND SCN-) ON NANOCRYSTALLINE TIO2 ELECTRODES [J].

NAZEERUDDIN, MK ;

KAY, A ;

RODICIO, I ;

HUMPHRYBAKER, R ;

MULLER, E ;

LISKA, P ;

VLACHOPOULOS, N ;

GRATZEL, M .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1993, 115 (14) :6382-6390

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