抄録
Effects of an interaction between the electronic and lattice systems on the optical spectra of a wurtzite GaN epilayer were investigated. The exponentially increasing absorption tail was well explained as an Urbach-Martienssen tail, giving the characteristic phonon energy of 30 meV. The result indicates that few longitudinal optical phonons contribute to the exciton-phonon coupling even at room temperature.
本文言語 | English |
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ページ(範囲) | 3440-3442 |
ページ数 | 3 |
ジャーナル | Applied Physics Letters |
巻 | 70 |
号 | 25 |
DOI | |
出版ステータス | Published - 1997 6月 23 |
ASJC Scopus subject areas
- 物理学および天文学(その他)