Enhanced photoelectrochemical performance of LaFeO(3) photocathode with Au buffer layer.
Enhanced photoelectrochemical performance of LaFeO(3) photocathode with Au buffer layer.
复制标题
Au缓冲层增强LaFeO3光阴极的光电化学性能
DOI:
10.1039/c9ra05521e
复制
发表时间:
2019-08-23
期刊:
影响因子:
3.9
通讯作者:
Cao, Dawei
中科院分区:
文献类型:
--
作者:
Wang, Peipei;He, Yanfang;Mi, Yan;Zhu, Jianfei;Zhang, Faling;Liu, Yuan;Yang, Ying;Chen, Mingming;Cao, Dawei
Due to an appropriate band gap of 2.07 eV, perovskite LaFeO3 (LFO) is an alternative candidate for high-efficiency photoelectrochemical (PEC) systems. However, the photocurrent of the LFO photocathode is too low to be practical. Herein, we prepared a LFO film with high crystal quality by inserting an Au thin layer between LFO and FTO in the LFO/FTO photocathode. Accordingly, an effective improvement PEC performance could be obtained and the photocurrent density of the FTO/Au/LFO electrode was increased to −19.60 μA cm−2 at 0.6 V vs. RHE, which is 4.1 times higher than that of pristine FTO/LFO electrode. Based on the experimental and theoretical analysis, the enhancement of the photocurrent was attributed to the strong light harvesting, enhanced charge separation, and increased charge-collection efficiency of the Au/LFO structure. This work provides a promising strategy to develop high-efficiency PEC electrodes, and has potential to be applied in the visible-light water splitting area. Au/LFO obtained by facile magnetron sputtering and sol–gel process presents a remarkable improvement in photocurrent up to −19.60 μA cm−2.
登录
查看更多内容
影响因子:
17.1
作者:
Nail, Benjamin A.;Fields, Jorie M.;Osterloh, Frank E.
通讯作者:
Osterloh, Frank E.
影响因子:
6.4
作者:
Pawar, Govinder Singh;Elikkottil, Ameen;Mallick, Tapas Kumar
通讯作者:
Mallick, Tapas Kumar
影响因子:
7.2
作者:
Tijare, Saumitra N.;Joshi, Meenal V.;Labhsetwar, Nitin K.
通讯作者:
Labhsetwar, Nitin K.
影响因子:
9.5
作者:
Wu, Mi;Chen, Wei-Jian;Li, Shi-Kuo
通讯作者:
Li, Shi-Kuo
影响因子:
8.4
作者:
Xu, Na;Li, Feng;Jin, Jun
通讯作者:
Jin, Jun