Photoelectrochemical solar cell properties of heteropolytungstic acid-incorporated TiO2 nanodisc thin films

被引：65
|
作者：
Parayil, Sreenivasan Koliyat [1 ]
Lee, Yu Min [1 ]
Yoon, Minjoong [1 ]
机构：
[1] Chungnam Natl Univ, Dept Chem, Taejon 305764, South Korea
来源：
ELECTROCHEMISTRY COMMUNICATIONS | 2009年 / 11卷 / 06期
关键词：
Heteropolytungstic acid; TiO2; nanodiscs; Thin films; Degussa P25; Dye-sensitized solar cell; DYE; ELECTROLYTE; PERFORMANCE;
D O I：
10.1016/j.elecom.2009.04.031
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Thin film of heteropolytungstic acid (HPA)-incorporated TiO2 nanodisc was fabricated, and its photovoltaic performances were observed as a function of irradiation wavelength from 400 nm to 750 nm. Its incident photon-to-current efficiency (IPCE) was determined to be 18.6% around 500 nm, with energy conversion efficiency of 6.9%, which were observed to be further enhanced to 23% and 9%, respectively. by adsorption of ruthenium or porphyrin dyes. Complementary electron transports from both HPA and dyes to TiO2 nanodisc seems to avoid most of the backward electron or hole transfer reactions to enhance the photoelectrochemical efficiencies of dye-sensitized solar cells. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：1211 / 1216
页数：6
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