The normalized 10 K PL spectra of samples A–C.
(a) The normalized 10 K spectral responses of device A biased at 1.2 V and device B biased at 2.6 V, and (b) the 10 K PLE spectrum of sample B.
The normalized 10 K spectral responses of devices B and C biased at 2.6 V.
The photocurrent ratios of devices A and C biased at −1.0 and −1.4 V under different incident-light polarizations.
The device structures of samples A–C.
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