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Temperature-dependent line widths of single excitons and biexcitons

Gindele, F, Hild, K, Langbein, Wolfgang Werner ORCID: 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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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

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