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Target-induced photocurrent-polarity switching: a highly selective and sensitive photoelectrochemical sensing
Ruiying Yang1, Kang Zou1, Xiaohua Zhang1
1State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China. chenjinhua@hnu.edu.cn.
Abstract:
Herein, a novel photoelectrochemical (PEC) sensing platform was developed based on target-induced switching from indirect Z-scheme NPC-ZnO/Au/CdS to direct Z-scheme CdS/hemin systems accompanied by the photocurrent-polarity switching from cathodic to anodic photocurrents. The developed PEC sensor exhibited excellent selectivity and high sensitivity.
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