Photoelectrochemical Performance of Electrodeposited Cu2O on TiO2 Nanotubes

被引：26
作者：
Tsui, Lok-kun [1 ]
Wu, Lingling [2 ]
Swami, Nathan [2 ]
Zangari, Giovanni [2 ]
机构：
[1] Univ Virginia, Dept Mat Sci & Engn, Charlottesville, VA 22904 USA
[2] Univ Virginia, Dept Elect Engn, Charlottesville, VA 22904 USA
来源：
ECS ELECTROCHEMISTRY LETTERS | 2012年 / 1卷 / 02期
关键词：
SENSITIZED SOLAR-CELLS; CUPROUS-OXIDE; SEMICONDUCTOR; ARRAYS; ELECTRONS; HYDROGEN; FILMS; ENERGY; CDS;
D O I：
10.1149/2.008202eel
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The titania (TiO2) nanotube system has broad potential for photoelectrochemical solar cell applications, but its conversion efficiency is limited by the wide 3.2eV bandgap. We demonstrate a significant improvement of the photoelectrochemical performance of TiO2 nanotubes by extending absorption into the visible spectrum via modification with electrodeposition of cuprous oxide (Cu2O). We have studied the morphology of Cu2O nanocrystals embedded into the surface of the TiO2 nanotubes, and evaluated the impact of morphology and doping type on the photoelectrochemical performance. A fourfold enhancement in conversion efficiency has been achieved using a 3-step pulse electrodeposition technique. (c) 2012 The Electrochemical Society. All rights reserved.
引用
收藏
页码：D15 / D19
页数：5
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