Optical properties of rhenium diselenide single crystals doped with transition metals

In this paper, we focus on optical properties of rhenium diselenide (ReSe2) single crys- tals doped with Au, W, and Nb. The doping effect of the material was characterized by polarization-dependent piezoreflectance (PzR) and photoreflectance (PR) measurements in the temperature range of 15–300 K....

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Autores principales:	Dumcenco, Dumitru, Huang, Ying-Sheng, Ho, Ching-Hwa
Formato:	article
Lenguaje:	EN
Publicado:	D.Ghitu Institute of Electronic Engineering and Nanotechnologies 2009
Materias:	Physics QC1-999 Electronics TK7800-8360
Acceso en línea:	https://doaj.org/article/5335abe8a65e4d248797ccb75ae87c98
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spelling	oai:doaj.org-article:5335abe8a65e4d248797ccb75ae87c982021-11-21T12:04:33ZOptical properties of rhenium diselenide single crystals doped with transition metals2537-63651810-648Xhttps://doaj.org/article/5335abe8a65e4d248797ccb75ae87c982009-09-01T00:00:00Zhttps://mjps.nanotech.md/archive/2009/article/4145https://doaj.org/toc/1810-648Xhttps://doaj.org/toc/2537-6365In this paper, we focus on optical properties of rhenium diselenide (ReSe2) single crys- tals doped with Au, W, and Nb. The doping effect of the material was characterized by polarization-dependent piezoreflectance (PzR) and photoreflectance (PR) measurements in the temperature range of 15–300 K. The low temperature PzR and PR spectra reveal the observation of ex E1 feature at E\|\|b polarization as well as two features ex E2 and exE3 at E⊥b polarization. In comparison with the undoped ReSe2, the excitonic transition energies remain practically unchanged, while the broadening parameter of the excitonic transition features slightly increases due to impurity scattering. The angular dependence of the excitonic features amplitudes agree well with the Malus law. Dumcenco, DumitruHuang, Ying-ShengHo, Ching-HwaD.Ghitu Institute of Electronic Engineering and NanotechnologiesarticlePhysicsQC1-999ElectronicsTK7800-8360ENMoldavian Journal of the Physical Sciences, Vol 8, Iss 3-4, Pp 271-276 (2009)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999 Electronics TK7800-8360
spellingShingle	Physics QC1-999 Electronics TK7800-8360 Dumcenco, Dumitru Huang, Ying-Sheng Ho, Ching-Hwa Optical properties of rhenium diselenide single crystals doped with transition metals
description	In this paper, we focus on optical properties of rhenium diselenide (ReSe2) single crys- tals doped with Au, W, and Nb. The doping effect of the material was characterized by polarization-dependent piezoreflectance (PzR) and photoreflectance (PR) measurements in the temperature range of 15–300 K. The low temperature PzR and PR spectra reveal the observation of ex E1 feature at E\|\|b polarization as well as two features ex E2 and exE3 at E⊥b polarization. In comparison with the undoped ReSe2, the excitonic transition energies remain practically unchanged, while the broadening parameter of the excitonic transition features slightly increases due to impurity scattering. The angular dependence of the excitonic features amplitudes agree well with the Malus law.
format	article
author	Dumcenco, Dumitru Huang, Ying-Sheng Ho, Ching-Hwa
author_facet	Dumcenco, Dumitru Huang, Ying-Sheng Ho, Ching-Hwa
author_sort	Dumcenco, Dumitru
title	Optical properties of rhenium diselenide single crystals doped with transition metals
title_short	Optical properties of rhenium diselenide single crystals doped with transition metals
title_full	Optical properties of rhenium diselenide single crystals doped with transition metals
title_fullStr	Optical properties of rhenium diselenide single crystals doped with transition metals
title_full_unstemmed	Optical properties of rhenium diselenide single crystals doped with transition metals
title_sort	optical properties of rhenium diselenide single crystals doped with transition metals
publisher	D.Ghitu Institute of Electronic Engineering and Nanotechnologies
publishDate	2009
url	https://doaj.org/article/5335abe8a65e4d248797ccb75ae87c98
work_keys_str_mv	AT dumcencodumitru opticalpropertiesofrheniumdiselenidesinglecrystalsdopedwithtransitionmetals AT huangyingsheng opticalpropertiesofrheniumdiselenidesinglecrystalsdopedwithtransitionmetals AT hochinghwa opticalpropertiesofrheniumdiselenidesinglecrystalsdopedwithtransitionmetals
_version_	1718419245373587456

Optical properties of rhenium diselenide single crystals doped with transition metals

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