期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 191, 期 -, 页码 619-624出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2013.10.060
关键词
Photoelectrochemistry; Heterojunction; Biosensor; Electrodeposition; Cuprous oxide; Zinc oxide
资金
- Natural Science Foundation of China [21305123, 20875080]
- Natural Science Foundation of Jiangsu Province [BK2012247, BK20131218]
- Foundation of International Cooperation of Jiangsu Province [BZ2010053]
- Foundation of Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province [AE201162, AE201017]
- Talent Introduction Foundation of Yancheng Institute of Technology [KJC2012051]
A novel environment-friendly all oxide semiconductor Cu2O/ZnO heterojunction was first applied in photoelectrochemical biosensing. The heterojunction was prepared by facile two-steps of electrode-position and characterized by scanning electron microscopy, X-ray diffractometry, and ultraviolet and visible spectrophotometer. The enhancement of photocurrent is attributed to the rapid and efficient electron transition and the inhibition of photo-induced electron-hole pairs recombination, which stems from the formation of energy level matching Cu2O/ZnO heterojunction. Using glutathione (GSH) as a model, the fabricated photoelectrochemical sensor showed good performances with a rapid response, facile preparation, wide concentration range, excellent stability and low detection limit (0.8 mu mol L-1). It had been successfully applied to the detection of GSH in glucose injection and the result agreed well with that given in the instruction. This strategy opened a new channel for Cu2O/ZnO heterojunction in photoelectrochemical sensing. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据