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PL spectra of at 10 K. Inset shows excitation power-dependent PL spectra of at 10 K.
TRPL spectra at 10 K of (a) ( and 0.053) and (b) for monitored energies from 2.55 to 2.43 eV in interval of 10 meV. Inset in (b) shows TRPL image of at 10 K.
(a) Temperature-dependent PL spectra of and (b) corresponding PL peak energy (solid circles) against temperature. Solid and dashed curves in (b) represent fits using BAC model and the Varshni equation, respectively.
(a) Temperature-dependent TRPL spectra and stretching exponent (inset) of . (b) Schematic indicates complex relaxation channels. For simplicity only two trap states are considered. (c) TRPL image of at 80 K.
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