Photoelectric performance of TiO2 nanotube array photoelectrodes cosensitized with CdS/CdSe quantum dots

被引：72

作者：

Gao, Xian-Feng

Sun, Wen-Tao ^{[1
]}

Ai, Guo

Peng, Lian-Mao

机构：

[1] Peking Univ, Dept Elect, Beijing 100871, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 15期

基金：

美国国家科学基金会;

关键词：

cadmium compounds; current density; electrochemical electrodes; II-VI semiconductors; photoelectric devices; photoelectrochemical cells; semiconductor nanotubes; semiconductor quantum dots; semiconductor thin films; short-circuit currents; solar cells; titanium compounds; SOLAR-CELLS; LIGHT-SCATTERING; ELECTRODES; CDS; SENSITIZATION;

D O I：

10.1063/1.3386525

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The photoresponse of TiO2 nanotube-array films in the visible region is shown to have been significantly improved by sensitizing them with CdS and CdSe semiconductor quantum dots using a sequential chemical bath deposition method. These quantum dots served as cosensitizers, and the performance of corresponding photoelectrode was measured in a photoelectrochemical solar cell. A 13.0 mA/cm(2) short circuit current density is achieved with the TiO2/CdS/CdSe photoelectrode under AM 1.5G illuminations, which is higher than the direct sum of CdS and CdSe sensitized TiO2.

引用

收藏

页数：3

相关论文

共 21 条

[1] 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

[2] Valence band alignment at cadmium selenide quantum dot and zinc oxide (10(1)over-bar0) interfaces [J].

Carlson, Brooke ;

Leschkies, Kurtis ;

Aydil, Eray S. ;

Zhu, X. -Y. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (22) :8419-8423

[3] 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)

[4] CdTe Quantum Dots-Sensitized TiO2 Nanotube Array Photoelectrodes [J].

Gao, Xian-Feng ;

Li, Hong-Bo ;

Sun, Wen-Tao ;

Chen, Qing ;

Tang, Fang-Qiong ;

Peng, Lian-Mao .

JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (18) :7531-7535

[5] Photoelectrochemical cells [J].

Grätzel, M .

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

[6] Highly Efficient Quantum-Dot-Sensitized Solar Cell Based on Co-Sensitization of CdS/CdSe [J].

Lee, Yuh-Lang ;

Lo, Yi-Siou .

ADVANCED FUNCTIONAL MATERIALS, 2009, 19 (04) :604-609

[7] 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)

[8] High-aspect-ratio TiO2 nanotubes by anodization of titanium [J].

Macák, JM ;

Tsuchiya, H ;

Schmuki, P .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (14) :2100-2102

[9] Design of light scattering in nanowire materials for photovoltaic applications [J].

Muskens, Otto L. ;

Rivas, Jaime Gomez ;

Algra, Rienk E. ;

Bakkers, Erik P. A. M. ;

Lagendijk, Ad .

NANO LETTERS, 2008, 8 (09) :2638-2642

[10] Measurement and assignment of the size-dependent optical spectrum in CdSe quantum dots [J].

Norris, DJ ;

Bawendi, MG .

PHYSICAL REVIEW B, 1996, 53 (24) :16338-16346