Abstract

The radiative excitonic recombination coefficient Bx in semiconductors for the process e + hX* + photon is calculated. Electrons and holes are considered in a parabolic-band approximation. The exciton’s internal state is taken as hydrogenic. The exciton’s center-of-mass energy spectrum is found to be modified Maxwellian with a sharper tail at low energies. Numerical calculations are presented for gallium arsenide. The value of Bx is about 3 × 10−9 cm3 sec−1 at 45 K. Bx decreases rapidly with increasing temperature and approaches the value of 3 × 10−10 cm3 sec−1 at temperatures when excitons are unstable against thermal decomposition, which is comparable with a direct radiative recombination coefficient at room temperature. The possibility for a stimulated recombination process is also discussed.

© 1986 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Engineering radiative coupling of excitons in 2D semiconductors

Jason Horng, Yu-Hsun Chou, Tsu-Chi Chang, Chu-Yuan Hsu, Tien-Chang Lu, and Hui Deng
Optica 6(11) 1443-1448 (2019)

Radiative recombination processes in wide-band-gap II–VI quantum wells: the interplay between excitons and free carriers

R. Cingolani, L. Calcagnile, G. Colí, R. Rinaldi, M. Lomoscolo, M. DiDio, A. Franciosi, L. Vanzetti, G. C. LaRocca, and D. Campi
J. Opt. Soc. Am. B 13(6) 1268-1277 (1996)

Room-temperature excitonic nonlinear-optical effects in semiconductor quantum-well structures

D. S. Chemla and D. A. B. Miller
J. Opt. Soc. Am. B 2(7) 1155-1173 (1985)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (2)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (46)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription