Donor-acceptor pair recombination luminescence from monoclinic Cu2SnS3 thin film
作者： Naoya Aihara , Kunihiko Tanaka , Hisao Uchiki , Ayaka Kanai , Hideaki Araki
DOI: 10.1063/1.4927203
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摘要: The defect levels in Cu2SnS3 (CTS) were investigated using photoluminescence (PL) spectroscopy. A CTS thin film was prepared on a soda-lime glass/molybdenum substrate by thermal co-evaporation and sulfurization. crystal structure determined to be monoclinic, the compositional ratios of Cu/Sn S/Metal 1.8 1.2, respectively. photon energy PL spectra observed from lower than that previously reported. All fitted peaks associated with related luminescence. at 0.843 0.867 eV assigned donor-acceptor pair recombination luminescence, activation energies which 22.9 24.8 meV,
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