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Temperature Dependence of the Exciton Gap in Monocrystalline CuGaS2
Citation
Levcenco, S., Doka, S., Tezlevan, V., Fuertes Marrón, David 
ORCID: https://orcid.org/0000-0002-9493-9902, Kulyuk, L., Schedel Niedrig, T., Lux Steiner, M. Ch. and Arushano, E.
(2010).
Temperature Dependence of the Exciton Gap in Monocrystalline CuGaS2.
"Physica B: Physics of Condensed Matter", v. 405
(n. 117);
pp. 3547-3550.
ISSN 0167-2789.
https://doi.org/10.1016/j.physb.2010.05.037.
Description
| Title: | Temperature Dependence of the Exciton Gap in Monocrystalline CuGaS2 |
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| Author/s: |
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| Item Type: | Article |
| Título de Revista/Publicación: | Physica B: Physics of Condensed Matter |
| Date: | September 2010 |
| ISSN: | 0167-2789 |
| Volume: | 405 |
| Subjects: | |
| Freetext Keywords: | Chalcopyrite; Photoluminescence Spectroscopy |
| Faculty: | E.T.S.I. Telecomunicación (UPM) |
| Department: | Otro |
| Creative Commons Licenses: | Recognition - No derivative works - Non commercial |
Abstract
Single crystals of CuGaS2 have been grown by chemical vapour transport. Their near-band gap photoluminescence properties were investigated in the temperature range of 10-300 K. The variation of the exciton gap energy with temperature was studied by means of a three-parameter thermodynamic model, the Einstein model and the Pässler model. Values of the band gap at T=0 K, of a dimensionless constant related to the electron-phonon coupling, and of an effective and a cut-off phonon energy have been estimated. It has also been found that the major contribution of phonons to the shift of Eg as a function of T in CuGaS2 is mainly from optical phonons.
More information
| Item ID: | 8082 |
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| DC Identifier: | https://oa.upm.es/8082/ |
| OAI Identifier: | oai:oa.upm.es:8082 |
| DOI: | 10.1016/j.physb.2010.05.037 |
| Official URL: | http://www.sciencedirect.com/science/article/pii/S... |
| Deposited by: | Memoria Investigacion |
| Deposited on: | 18 Aug 2011 09:55 |
| Last Modified: | 20 Apr 2016 16:59 |
