Comparative study on the broadening of exciton luminescence linewidth due to phonon in zinc-blende and wurtzite GaN epilayers

S. J. Xu, L. X. Zheng, S. H. Cheung, M. H. Xie, S. Y. Tong, Hui Yang

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Abstract

The broadening of exciton luminescence linewidth due to phonon in zinc-blende and wurtzite GaN epilayers was discussed. The coupling parameters between exciton and acoustic and longitudinal optical phonons were obtained for both structures. The analysis showed that the coupling constants of both exciton-acoustic optial phonon coupling and exciton-longitudinal optical phonon coupling for zinc-blende GaN were almost twice as much as the corresponding values of wurtzite GaN.

Original languageBritish English
Pages (from-to)4389-4391
Number of pages3
JournalApplied Physics Letters
Volume81
Issue number23
DOIs
StatePublished - 2 Dec 2002

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