Defects forming the optical absorption edge in TlGaSe2 layered crystal
| dc.contributor.author | Seyidov, MirHasan Yu. | |
| dc.contributor.author | Suleymanov, Rauf A. | |
| dc.contributor.author | Sale, Yasin | |
| dc.date.accessioned | 2025-10-29T11:26:14Z | |
| dc.date.issued | 2016 | |
| dc.department | Fakülteler, Temel Bilimler Fakültesi, Fizik Bölümü | |
| dc.description.abstract | In this work, we present the results of optical experiments designed to investigate the changes in optical absorption spectra of TlGaSe2 ferroelectric-semiconductor with incommensurate (INC) phase in experimental conditions where crystal is kept several hours within the INC-phase (the regime of so called memory effect). The fundamental absorption of TlGaSe2, experimentally investigated by optical transmission measurements performed in the temperature range 15-300 K. An extraordinary modification of the optical absorption edge in the range of Urbach's tail is discovered as a result of the annealing within the INC-phase. The role of native defects forming the band edge in the observed phenomena in TlGaSe2 is discussed. (C) 2016 Elsevier Ltd. All rights reserved. | |
| dc.identifier.doi | 10.1016/j.jpcs.2016.04.009 | |
| dc.identifier.endpage | 21 | |
| dc.identifier.issn | 0022-3697 | |
| dc.identifier.issn | 1879-2553 | |
| dc.identifier.orcid | 0000-0001-7982-0615 | |
| dc.identifier.scopus | 2-s2.0-84966355521 | |
| dc.identifier.scopusquality | Q1 | |
| dc.identifier.startpage | 17 | |
| dc.identifier.uri | https://doi.org/10.1016/j.jpcs.2016.04.009 | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14854/10174 | |
| dc.identifier.volume | 96-97 | |
| dc.identifier.wos | WOS:000378960700003 | |
| dc.identifier.wosquality | Q2 | |
| dc.indekslendigikaynak | Web of Science | |
| dc.indekslendigikaynak | Scopus | |
| dc.language.iso | en | |
| dc.publisher | Pergamon-Elsevier Science Ltd | |
| dc.relation.ispartof | Journal of Physics and Chemistry of Solids | |
| dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | |
| dc.rights | info:eu-repo/semantics/closedAccess | |
| dc.snmz | KA_WOS_20251020 | |
| dc.subject | Ferroelectric-semiconductors | |
| dc.subject | Optical transmittance spectra | |
| dc.subject | Urbach's tail | |
| dc.subject | Deep level defects | |
| dc.subject | Memory effect | |
| dc.title | Defects forming the optical absorption edge in TlGaSe2 layered crystal | |
| dc.type | Article |
