Photoelectric Properties of GaS1−xSex (0 ≤ x ≤ 1) Layered Crystals
Yu-Tai Shih,
Der-Yuh Lin,
Bo-Chang Tseng
et al.
Abstract:In this study, the photoelectric properties of a complete series of GaS1−xSex (0 ≤ x ≤ 1) layered crystals are investigated. The photoconductivity spectra indicate a decreasing bandgap of GaS1−xSex as the Se composition x increases. Time-resolved photocurrent measurements reveal a significant improvement in the response of GaS1−xSex to light with increasing x. Frequency-dependent photocurrent measurements demonstrate that both pure GaS crystals and GaS1−xSex ternary alloy crystals exhibit a rapid decrease in p… Show more
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