Photo-Electrochemical Performance of Interpenetration-Structured Heterojunction by Overlapping CuO and ZnO Nanorod Arrays. Issue 6 (4th June 2021)

• Record Type: Journal Article
• Authors: Wu, Fan; Pathak, Rajesh; Zhang, Tiansheng; Xu, Haibing; Tong, Yanhua; Jian, Ronghua; Qiao, Qiquan (Quinn)
• Is Part Of: Journal of the Electrochemical Society. Volume 168:Issue 6(2021)
• Publication Date: 2021-06-04
• Subjects: Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/1945-7111/ac054e
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : A facile design of interpenetration-structured p–n heterojunction device was fabricated by overlapping p-CuO and n-ZnO nanorod arrays directly. The design showed weak photovoltaic performance. However, the p-n heterojunction system shows the significantly enhanced photocurrent and photovoltage with the assistance of filling electrolyte (I3 − /I − ). The charge carrier dynamics indicates that the reversible redox couple (I3 − /I − ) electrolyte can promote electron transfer from CuO to ZnO better, i.e. better charge separation efficiency and photocurrent.