Dye-sensitized solar cells based on nanoparticle-decorated ZnO/TiO2 core/shell nanorod arrays

Nanoparticles (NPs) decorated ZnO/TiO2 core/shell nanorod arrays were fabricated on transparent conductive glass substrates by sequential plasma deposition and post-annealing processes for dye-sensitized solar cells (DSSCs) applications. The NPs decorated ZnO/TiO2 nanorods were composed of single-cr...

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Veröffentlicht in:Journal of physics. D, Applied physics Applied physics, 2009-08, Vol.42 (15), p.155104-155104 (6)
Hauptverfasser: Wang, Meili, Huang, Changgang, Cao, Yongge, Yu, Qingjiang, Deng, Zhonghua, Liu, Yuan, Huang, Zhi, Huang, Jiquan, Huang, Qiufeng, Guo, Wang, Liang, Jingkui
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container_issue 15
container_start_page 155104
container_title Journal of physics. D, Applied physics
container_volume 42
creator Wang, Meili
Huang, Changgang
Cao, Yongge
Yu, Qingjiang
Deng, Zhonghua
Liu, Yuan
Huang, Zhi
Huang, Jiquan
Huang, Qiufeng
Guo, Wang
Liang, Jingkui
description Nanoparticles (NPs) decorated ZnO/TiO2 core/shell nanorod arrays were fabricated on transparent conductive glass substrates by sequential plasma deposition and post-annealing processes for dye-sensitized solar cells (DSSCs) applications. The NPs decorated ZnO/TiO2 nanorods were composed of single-crystalline ZnO nanorods, homogeneously coated thin TiO2 shells and entirely covered anatase TiO2 NPs. The photocurrent density of the composite electrode was largely enhanced due to the enlarged surface area, the dark current was suppressed and the open-circuit voltage was increased because of the energy barrier formed at the interface between the ZnO core and the TiO2 shell. The increased photocurrent and open-circuit voltage led to an improvement of twice the energy conversion efficiency.
doi_str_mv 10.1088/0022-3727/42/15/155104
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subjects Applied sciences
Energy
Exact sciences and technology
Natural energy
Photovoltaic conversion
Solar cells. Photoelectrochemical cells
Solar energy
title Dye-sensitized solar cells based on nanoparticle-decorated ZnO/TiO2 core/shell nanorod arrays
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