Luminescent Properties of the Jahn‒Teller Center in Carbon-Doped Tin Disulfide

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发表日期：

2024年3月1日

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S. N. Nikolaev,
V. S. Krivobok,
M. A. Chernopitssky,
E. A. Ekimov,
M. V. Kondrin

摘要

Abstract

We report an investigation of the C_Sn-center luminescent properties in the 2H SnS₂ polytype over a wide temperature range. It is shown that in the temperature range from 5 to 200 K, the emission spectrum can be described in terms of the interaction of an electronic transition in the region of 1.4 eV with a localized phonon mode, whose frequency is 270 cm^‒1. At temperatures exceeding 200 K, structural rearrangement of the center is observed, which manifests itself in qualitative changes in the emission spectrum and luminescence quantum yield.