Photoelectrochemical properties of iron (III)-doped TiO2 nanorods

被引：23
作者：
Lee, Tae-hyun [1 ]
Ryu, Hyukhyun [1 ]
Lee, Won-Jae [2 ]
机构：
[1] Inje Univ, Ctr Nano Mfg, Dept Nano Sci & Engn, Gimhae 621749, Gyeongnam, South Korea
[2] Dong Eui Univ, Dept Mat & Components Engn, Busan 614714, South Korea
来源：
CERAMICS INTERNATIONAL | 2015年 / 41卷 / 06期
基金：
新加坡国家研究基金会;
关键词：
TiO2; nanorod; Fe doping; Photoelectrochemical (PEC); Modified-chemical bath deposition (M-CBD); NANOWIRE ARRAYS; NANOTUBE ARRAYS; GROWTH; GENERATION; BEHAVIORS; DESIGN; FILMS;
D O I：
10.1016/j.ceramint.2015.02.082
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Fe (iron)-doped TiO2 nanorods were grown on fluorine doped tin oxide (FTO) substrates with various Fe doping concentrations using modified chemical bath deposition (M-CBD). We investigated the effects of Fe doping concentration on the morphological, structural, optical, and photoelectrochemical (PEC) properties of the TiO2 nanorods. From this study, it was found that the PEC properties were mainly dependent on the morphological and optical properties of the Fe-doped TiO2 nanorods. At low Fe doping concentration, the PEC properties were highly affected by the optical properties. On the other hand, the PEC properties were significantly affected by the morphological properties at high doping concentration. We observed a maximum photocurrent density of 0.48 mA/cm(2) at a Fe doping concentration of 2 at% from this study. In addition, the donor density and flat-band potential of the Fe doping concentration from the Mott-Schottky plot were analyzed. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码：7582 / 7589
页数：8
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