Enhanced Carrier Transport of N-Doped TiO2 for Photoelectrochemical Cells

被引：13
|
作者：
Kim, Jae-Hong [1 ]
Yun, Tae Kwan [1 ]
Bae, Jae-Yung [2 ]
Ahn, Kwang-Soon [1 ]
机构：
[1] Yeungnam Univ, Sch Display & Chem Engn, Kyongsan 712749, Gyeongbuk, South Korea
[2] Keimyung Univ, Dept Chem, Taegu 704701, South Korea
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS | 2009年 / 48卷 / 12期
关键词：
VISIBLE-LIGHT; WATER; FILMS; GENERATION;
D O I：
10.1143/JJAP.48.120204
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The carrier transport kinetics of the TiO2 film doped with N (TiO2:N) were investigated by measuring the current and open circuit potential transients under light on/off illumination. These measurements were compared to an undoped film. The N in TiO2 not only shifted the light absorption into a longer wavelength region (known effect) but also enhanced the carrier transport. The combination of these two effects improved the photogeneration of the electron-hole pairs and suppressed their recombination, resulting in much better photoelectrochemical performance, compared to that of the undoped TiO2. (c) 2009 The Japan Society of Applied Physics
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页数：3
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