Temperature-dependent line widths of single excitons and biexcitons

Gindele, F, Hild, K, Langbein, Wolfgang Werner ORCID: https://orcid.org/0000-0001-9786-1023 and Woggon, U 2000. Temperature-dependent line widths of single excitons and biexcitons. Journal of Luminescence 87-89 , pp. 381-383. 10.1016/S0022-2313(99)00409-3

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Abstract

The coupling of single zero-dimensional excitons and biexcitons to acoustic and optical phonons is studied in epitaxially grown Zn1−xCdxSe/ZnSe quantum structures. From the temperature-dependent line width of the exciton photoluminescence (PL) an enhanced coupling to acoustic phonons is found which we explain by the quantum confinement. The LO-phonon coupling is reduced compared to CdSe bulk material. The temperature dependence of the line width of the biexciton PL is similar, indicating a similar coupling strength of the exciton and the exciton–biexciton transition to the crystal lattice.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QC Physics
Uncontrolled Keywords:	Single exciton; Biexciton; Phonon coupling
Publisher:	Elsevier
ISSN:	0022-2313
Last Modified:	28 Oct 2022 08:40
URI:	https://orca.cardiff.ac.uk/id/eprint/71706

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