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Intrawell and interwell transfer of excitons in growth-interrupted quantum wells

โœ Scribed by c.P. Luo; M.K. Chin; Z.L. Yuan; Z.Y. Xu

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
89 KB
Volume
24
Category
Article
ISSN
0749-6036

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โœฆ Synopsis

Intrawell and interwell transfers of excitons are observed by a temperature-dependent continuous-wave photoluminescence study of growth-interrupted single quantum wells. The intrawell transfer among the interface localization areas suggests a thermodynamic equilibrium between energy relaxation via LO-phonon emission and thermal population via phonon absorption. Thermal population is dominant in wider wells while relaxation is clearly observable in a four-monolayer narrow well at low temperatures. Interwell transfer of excitons also occurs between two narrow wells.

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