Synthesis of Density-controllable TiO2 Nanowire Bundle Arrays and Their Application in Quantum Dot Sensitized Solar Cell

doi:10.3724/SP.J.1077.2013.12468

Journal of Inorganic Materials ›› 2013, Vol. 28 ›› Issue (06): 639-643.DOI: 10.3724/SP.J.1077.2013.12468

• Research Paper • Previous Articles Next Articles

Synthesis of Density-controllable TiO₂ Nanowire Bundle Arrays and Their Application in Quantum Dot Sensitized Solar Cell

LIU Jun, WEI Ai-Xiang, ZHANG Chun-Xing

(School of Material and Energy, Guangdong University of Technology, Guangzhou 510006, China)

Received:2012-07-31 Revised:2012-10-12 Published:2013-06-20 Online:2013-05-20
About author:LIU Jun. E-mail: gdutliu@gdut.edu.cn
Supported by:
National Natural Science Foundation of China (51202037); Guangdong Province and the Ministry of Education Cooperation Projects (2011A090200003)

Abstract

Abstract: Highly oriented single-crystalline rutile TiO₂ nanowire bundle arrays on transparent conductive fluorine- doped tin oxide (FTO) substrates were synthesized by hydrothermal method using the precursors of tetrabutyl titanate, deionized water and hydrochloric acid. The density of the TiO₂ nanowire bundle can be tuned by changing the concentration of tetrabutyl titanate. Using the nanowire bundle array as the photoanode, CdS as sensitizer, the quantum dot sensitized solar cell (QDSSC) was assembled. The effects of nanowires density on photovoltaic performance of solar cell were investigated. It is found that the cell presents poor photovoltaic performance if the nanowires density is too high or too low. The optimal nanowires density for highest photovoltaic performance is 11.8×10⁶/mm² when the photoelectric conversion efficiency reaches 0.947%.

Key words: hydrothermal method, TiO₂ nanowire bundle array, quantum dot-sensitized solar cells, density

CLC Number:

TM23

LIU Jun, WEI Ai-Xiang, ZHANG Chun-Xing. Synthesis of Density-controllable TiO₂ Nanowire Bundle Arrays and Their Application in Quantum Dot Sensitized Solar Cell[J]. Journal of Inorganic Materials, 2013, 28(06): 639-643.

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Synthesis of Density-controllable TiO₂ Nanowire Bundle Arrays and Their Application in Quantum Dot Sensitized Solar Cell

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