Guan, Z. P. and Kuang, G. K. and Griebl, E. and Kastner, M. J. and Gebhardt, Wolfgang (1999) Exciton-longitudinal optical phonon coupling in a ZnSe-Zn0.75Cd0.25Se double-superlattice at 1.4 K. SOLID STATE COMMUNICATIONS, 111 (5). pp. 241-245. ISSN 0038-1098,
Full text not available from this repository. (Request a copy)Abstract
Photoluminescence and photoluminescence excitation spectra have been employed to study the phonon emission process in a ZnSe-Zn0.75Cd0.25Se double-superlattice at 1.4 K. Since the excitation energy is higher than the excitonic energy of the superlattice sample, excitons with a large kinetic energy will be generated. These excitons will then decay by emitting mainly longitudinal optical phonons and reach the bottom at K = 0. The transitions of n = 1 heavy- and light-hole hot excitons from a narrow well. superlattice are observed through the LO-phonon energy m (h) over bar omega. The results show that the n = 2 heavy-hole excitonic band (E-2hh(1)) in the wide well superlattice (SL1) reabsorbs the radiation, generated by both, the n = 1 light-hole (E-11h(2)) and heavy-hole (E-1hh(2)) excitonic bands of an adjacent narrow well superlattice (SL2). (C) 1999 Published by Elsevier Science Ltd. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | QUANTUM-WELLS; STIMULATED-EMISSION; MULTI-SUPERLATTICE; HOT EXCITONS; RELAXATION; RECOMBINATION; STATE; semiconductors; nanofabrications; phonons |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 06 Dec 2022 07:12 |
| Last Modified: | 06 Dec 2022 07:12 |
| URI: | https://pred.uni-regensburg.de/id/eprint/48739 |
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