Photosensitization of TiO2 nanorods with CdS quantum dots for photovoltaic devices

被引：116

作者：

Chen, Hui ^{[1
]}

Fu, Wuyou ^{[1
]}

Yang, Haibin ^{[1
]}

Sun, Peng ^{[2
]}

Zhang, Yanyan ^{[1
]}

Wang, Lianru ^{[1
]}

Zhao, Wenyan ^{[1
]}

Zhou, Xiaoming ^{[1
]}

Zhao, Hui ^{[1
]}

Jing, Qiang ^{[1
]}

Qi, Xuefeng ^{[1
]}

Li, Yixing ^{[1
]}

机构：

[1] Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R China

[2] Jilin Univ, State Key Lab Integrated Optoelect, Coll Elect Sci & Engn, Changchun 130012, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2010年 / 56卷 / 02期

关键词：

CdS; Quantum dots; TiO2; Nanorod arrays; Photoelectrochemical properties; SENSITIZED SOLAR-CELLS; VISIBLE-LIGHT; PHOTOCATALYTIC ACTIVITY; DOPED TIO2; TITANIUM-DIOXIDE; DEGRADATION; EFFICIENCY; FILMS; NANOTUBES; SEMICONDUCTOR;

D O I：

10.1016/j.electacta.2010.10.003

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

CdS quantum dots (QDs) coated TiO2 nanorod arrays have been prepared via a two-step method. TiO2 nanorod arrays were synthesized by a facile hydrothermal method, and CdS QDs were deposited on the nanorods by a sequential chemical bath deposition (S-CBD) technique. The surface morphology, structure, optical and photoelectrochemical behaviors of the core-shell nanorod array films are considered. A photocurrent of 2.5 mA/cm(2), an open circuit photovoltage of 1.10V. and a conversion efficiency of 1.91% were obtained under an illumination of 100 mW/cm(2), when the CdS QDs deposited on TiO2 nanorods film for about 7 cycles. The results demonstrate that the composite films are of excellence with respect to photovoltaic conversion. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：919 / 924

页数：6

共 30 条

[1] Characterization and photocatalytic activity of Au/TiO2 thin films for azo-dye degradation [J].

Arabatzis, IM ;

Stergiopoulos, T ;

Andreeva, D ;

Kitova, S ;

Neophytides, SG ;

Falaras, P .

JOURNAL OF CATALYSIS, 2003, 220 (01) :127-135

[2] Visible-light photocatalysis in nitrogen-doped titanium oxides [J].

Asahi, R ;

Morikawa, T ;

Ohwaki, T ;

Aoki, K ;

Taga, Y .

SCIENCE, 2001, 293 (5528) :269-271

[3] Synthesis of Coupled Semiconductor by Filling 1D TiO2 Nanotubes with CdS [J].

Banerjee, Subarna ;

Mohapatra, Susanta K. ;

Das, Prajna P. ;

Misra, Mano .

CHEMISTRY OF MATERIALS, 2008, 20 (21) :6784-6791

[4] Electron and hole transfer from indium phosphide quantum dots [J].

Blackburn, JL ;

Selmarten, DC ;

Ellingson, RJ ;

Jones, M ;

Micic, O ;

Nozik, AJ .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (07) :2625-2631

[5] Chemical bath deposition of CdS quantum dots onto mesoscopic TiO2 films for application in quantum-dot-sensitized solar cells [J].

Chang, Chi-Hsiu ;

Lee, Yuh-Lang .

APPLIED PHYSICS LETTERS, 2007, 91 (05)

[6] Vertically Aligned Single Crystal TiO2 Nanowire Arrays Grown Directly on Transparent Conducting Oxide Coated Glass: Synthesis Details and Applications [J].

Feng, Xinjian ;

Shankar, Karthik ;

Varghese, Oomman K. ;

Paulose, Maggie ;

Latempa, Thomas J. ;

Grimes, Craig A. .

NANO LETTERS, 2008, 8 (11) :3781-3786

[7] Nitrogen-doped TiO2 nanotubes with enhanced photocatalytic activity synthesized by a facile wet chemistry method [J].

Geng, Jiaqing ;

Yang, Dong ;

Zhu, Juhong ;

Chen, Daimei ;

Jiang, Zhongyi .

MATERIALS RESEARCH BULLETIN, 2009, 44 (01) :146-150

[8] Synergistic Effect of CdSe Quantum Dot Sensitization and Nitrogen Doping of TiO2 Nanostructures for Photoelectrochemical Solar Hydrogen Generation [J].

Hensel, Jennifer ;

Wang, Gongming ;

Li, Yat ;

Zhang, Jin Z. .

NANO LETTERS, 2010, 10 (02) :478-483

[9] Nanostructured photovoltaic cell of the type titanium dioxide, cadmium sulfide thin coating, and copper thiocyanate showing high quantum efficiency [J].

Larramona, G ;

Choné, C ;

Jacob, A ;

Sakakura, D ;

Delatouche, B ;

Péré, D ;

Cieren, X ;

Nagino, M ;

Bayón, R .

CHEMISTRY OF MATERIALS, 2006, 18 (06) :1688-1696

[10] CdSe quantum dot-sensitized solar cells exceeding efficiency 1% at full-sun intensity [J].

Lee, Hyo Joong ;

Yum, Jun-Ho ;

Leventis, Henry C. ;

Zakeeruddin, Shaik M. ;

Haque, Saif A. ;

Chen, Peter ;

Seok, Sang Il ;

Graetzel, Michael ;

Nazeeruddin, Md. K. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (30) :11600-11608

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