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https://elib.bsu.by/handle/123456789/257286| Title: | Near-edge optical anisotropy in SnSe single crystals |
| Authors: | Zalamai, V. V. Tiron, A. V. Rusu, E. V. Monaico, E. V. Syrbu, N. N. |
| Keywords: | ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика |
| Issue Date: | 2020 |
| Publisher: | Минск : БГУ |
| Citation: | Материалы и структуры современной электроники : материалы IX Междунар. науч. конф., Минск, 14–16 окт. 2020 г. / Белорус. гос. ун-т ; редкол.: В. Б. Оджаев (гл. ред.) [и др.]. – Минск : БГУ, 2020. – С. 12-16. |
| Abstract: | Edge absorption anisotropy in wide temperature interval (10–300 K) were investigated for SnSe single crystals. It was established that minimal band gap (1.091 eV at 300 K) is formed by direct transitions. These transitions are allowed in E||c and forbidden in E||a polarizations, respectively. The next direct band gap (1.316 eV at 300 K) is due to direct transitions allowed in E||a and forbidden in E||c polarization. The strong anisotropy of edge absorption is observed at rotation of polarization vector in a-c plane. The shift coefficient of edge absorption with temperature is estimated as 3.4×10-3 eVK -1 . The investigated samples possess a very high absorption coefficient in the intrinsic region |
| Description: | Свойства, диагностика и применение полупроводниковых материалов и структур на их основе |
| URI: | https://elib.bsu.by/handle/123456789/257286 |
| ISBN: | 978-985-881-073-3 |
| Sponsorship: | The authors acknowledge financial support from the Ministry of Education, Culture and Research of Moldova under the Grants #20.80009.5007.20 and 19.80013.50.07.02A/BL. Victor Zalamai and Eduard Monaico thanks to the Alexander von Humboldt Foundation for support |
| Appears in Collections: | 2020. Материалы и структуры современной электроники |
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