Deshuang Guo, Wei Li, Dengkui Wang, Bingheng Meng, Dan Fang, Zhipeng Wei. High performance Cu2O film/ZnO nanowires self-powered photodetector by electrochemical deposition[J]. Chinese Physics B, 2020, 29(9):
- Chinese Physics B
- Vol. 29, Issue 9, (2020)
Fig. 1. (a) The SEM image and EDS of Cu2O film. (b) The SEM image and EDS of ZnO NWs. (c) The cross section SEM image of Cu2O/ZnO heterojunction.
Fig. 2. (a) The XRD patterns and (b) UV–visible spectra of Cu2O film, ZnO NWs, and Cu2O/ZnO heterojunction.
Fig. 3. (a) The I –V curves of the Cu2O film and Cu2O/ZnO heterojunction, the insert is a magnified image of Cu2O/ZnO heterojunction near the origin. (b) Spectral responsivity of the Cu2O/ZnO photodetector at 0 V bias.
Fig. 4. Energy band diagram of Cu2O/ZnO photodetector.
Fig. 5. (a) Spectral response of the Cu2O/ZnO photodetector at 2 V bias. (b) The time-resolved current curves of Cu2O/ZnO photodetector and Cu2O photodetector.
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Table 1. A comparison of the performances between this work and the state-of-the-art Cu2O-based photodetectors.
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