Photoluminescence spectroscopy of many-body effects in heavily doped AlxGa1−xAs

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DC Field	Value	Language
dc.contributor.author	Sarkar, Niladri	-
dc.date.accessioned	2024-02-21T03:54:18Z	-
dc.date.available	2024-02-21T03:54:18Z	-
dc.date.issued	2005-06	-
dc.identifier.uri	https://journals.aps.org/prb/abstract/10.1103/PhysRevB.71.233204	-
dc.identifier.uri	http://dspace.bits-pilani.ac.in:8080/jspui/xmlui/handle/123456789/14387	-
dc.description.abstract	We present an experimental investigation of heavy doping-induced many-body effects such as band gap narrowing and Fermi-edge singularity (FES) in AlxGa1−xAs using photoluminescence (PL) spectroscopy. The band-to-band transition energy shifts to lower energies and the FES feature in PL spectra grows with increasing electron concentration. We show that the FES feature is a nonmonotonic function of temperature and excitation intensity. Our data lead us to suggest that a small concentration of nonequilibrated holes is required to enhance the FES feature in the PL spectra.	en_US
dc.language.iso	en	en_US
dc.publisher	APS	en_US
dc.subject	Physics	en_US
dc.subject	Fermi-edge singularity (FES)	en_US
dc.subject	Spectroscopy	en_US
dc.title	Photoluminescence spectroscopy of many-body effects in heavily doped AlxGa1−xAs	en_US
dc.type	Article	en_US
Appears in Collections:	Department of Physics

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