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.
Original language | English (US) |
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Article number | 066508 |
Journal | Journal of the Electrochemical Society |
Volume | 168 |
Issue number | 6 |
DOIs | |
State | Published - Jun 2021 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Materials Chemistry
- Surfaces, Coatings and Films
- Electrochemistry
- Renewable Energy, Sustainability and the Environment