Inorganic Materials, vol.58, no.7, pp.696-700, 2022 (SCI-Expanded)
Abstract—: This paper presents a detailed experimental study of extrinsic photoelectric effects caused by combined excitation—induced extrinsic photoconductivity (IEP) and optical and thermal elimination of a photoelectric fatigue (PEF) state—in undoped and holmium- and erbium-doped (10–5 to 10–1 at %) indium selenide (n-InSe) crystals. The observed specific features of IEP and detection and elimination of a PEF state are shown to be due to not only the presence of different types of trap levels in the band gap of the crystals but also the presence of random macroscopic defects.