CdS quantum dots sensitized TiO2 photoelectrodes

被引：57

作者：

Prabakar, K. ^{[1
]}

Seo, Hyunwoong ^{[1
]}

Son, Minkyu ^{[1
]}

Kim, Heeje ^{[1
]}

机构：

[1] Pusan Natl Univ, Dept Elect Engn, Pusan 609735, South Korea

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2009年 / 117卷 / 01期

关键词：

Semiconductors; Thin films; Electron microscopy; Electrical characterization; TITANIUM-DIOXIDE; COST;

D O I：

10.1016/j.matchemphys.2009.05.056

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The CdS quantum dots were deposited on nanoporous TiO2 by chemical bath deposition technique to absorb the visible light in the longer wavelength region and are used as photo electrode in the dye sensitized solar cells (DSSC). The CdS quantum dots deposited on nanoporous TiO2 at 1 min deposition time showed improved short circuit current density (J(sc)) and open circuit voltage (V-oc) than films deposited at higher dipping times. The increase in the CdS dipping time reduces the amount of dye adsorbed on nanoporous TiO2 which limits the redox reactions in the electrolyte. (C) 2009 Elsevier B.V. All rights reserved.

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收藏

页码：26 / 28

页数：3

相关论文

共 14 条

[1] 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)

[2] Conversion efficiency of 10.8% by a dye-sensitized solar cell using a TiO2 electrode with high haze [J].

Chiba, Yasuo ;

Islam, Ashraful ;

Komiya, Ryoichi ;

Koide, Naoki ;

Han, Liyuan .

APPLIED PHYSICS LETTERS, 2006, 88 (22)

[3] Photoelectrochemical cells [J].

Grätzel, M .

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

[4] Low cost photovoltaic modules based on dye sensitized nanocrystalline titanium dioxide and carbon powder [J].

Kay, A ;

Gratzel, M .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 1996, 44 (01) :99-117

[5] 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

[6] Quantum-dot-sensitized solar cells: Assembly of CdS-quantum-dots coupling techniques of self-assembled monolayer and chemical bath deposition [J].

Lin, Sheng-Chih ;

Lee, Yuh-Lang ;

Chang, Chi-Hsiu ;

Shen, Yu-Jen ;

Yang, Yu-Min .

APPLIED PHYSICS LETTERS, 2007, 90 (14)

[7] Investigation of sensitizer adsorption and the influence of protons on current and voltage of a dye-sensitized nanocrystalline TiO2 solar cell [J].

Nazeeruddin, MK ;

Humphry-Baker, R ;

Liska, P ;

Grätzel, M .

JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (34) :8981-8987

[8] A LOW-COST, HIGH-EFFICIENCY SOLAR-CELL BASED ON DYE-SENSITIZED COLLOIDAL TIO2 FILMS [J].

OREGAN, B ;

GRATZEL, M .

NATURE, 1991, 353 (6346) :737-740

[9] Preparation and photocatalytic activity of TiOxNy/CdS heterojunctions [J].

Prabakar, K. ;

Takahashi, T. ;

Nezuka, T. ;

Takahashi, K. ;

Nakashima, T. ;

Kubota, Y. ;

Fujishima, A. .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 2007, 25 (04) :1188-1192

[10] Optimization and deposition of CdS thin films as applicable to TiO2/CdS composite catalysis [J].

Prabakar, K. ;

Takahashi, T. ;

Nakashima, T. ;

Kubota, Y. ;

Fujishima, A. .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 2006, 24 (04) :1613-1617