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. Author manuscript; available in PMC: 2020 Sep 20.
Published in final edited form as: Nat Electron. 2020 Mar 20;3(3):156–164. doi: 10.1038/s41928-020-0382-3

Figure 4. Photoresponse characteristics of the perovskite diode working as a photodetector to light emitted from another identical diode which works as an LED.

Figure 4

a, Photocurrent density of the -0.5 V biased perovskite diode working as a photodetector (JPD), responding to light emitted from an identical perovskite diode working as an LED driven with different current densities (JLED). b, The current to current ratios (JPD/JLED) of the -0.5 V biased perovskite photodetector and LED at different LED drive current densities. c, Frequency response of the perovskite photodetector to the light emitted from the perovskite LED.