The spectral distribution of the photoconductivity and the temperature dependence of the photocurrent of MnIn2S4 single crystals were investigated. The intrinsic and impurity photoconductivities as well as a maximum at energy 2.69 eV, which is associated with the intracenter transition of Mn2+ ions (6A1 → 4A1), were found in the photoconductivity spectrum. The wavelength region 600–1000 nm appears with an excess of manganese in the crystals and is caused by a donor defect. The increase in the photocurrent at 80–145 K is associated with thermal depletion of the adhesion levels. The activation energy of the adhesion levels was determined.
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 88, No. 6, pp. 967–969, November–December, 2021.
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Niftiyev, N.N. Photoelectric Properties of MnIn2S4 Crystals. J Appl Spectrosc 88, 1234–1236 (2022). https://doi.org/10.1007/s10812-022-01304-w
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DOI: https://doi.org/10.1007/s10812-022-01304-w