EFFECT OF OPTICAL PHONONS ON THE BINDING-ENERGY OF AN EXCITON IN A QUANTUM-WELL

Authors
LIANG XX BAN SL ZHENG RS
Citation
Xx. Liang et al., EFFECT OF OPTICAL PHONONS ON THE BINDING-ENERGY OF AN EXCITON IN A QUANTUM-WELL, Journal of luminescence, 72-4, 1997, pp. 358-360
Citations number
6
Categorie Soggetti
Optics
Journal title
Journal of luminescence → ACNP
ISSN journal
00222313
Volume
72-4
Year of publication
1997
Pages
358 - 360
Database
ISI
SICI code
0022-2313(1997)72-4:<358:EOOPOT>2.0.ZU;2-E
Abstract
The binding energy of an exciton in a quantum well of polar semiconduc tors is calculated including the interactions between the exciton and four branches of interface optical modes besides the bulk longitudinal optical modes confined in the well. The contributions of the bulk and the interface modes of phonons to the binding energy are obtained by a variational calculation. It is shown that the bulk and interface pho nons play important roles in the heavy-hole case.