摘要
Infrared and Raman-scattering studies of high-purity and -quality GaN nanowires are presented. The nanosize dependences of the peak shift and the broadening of the four first-order Raman modes agree with those calculated on the basis of the phonon confinement model. Additionally, the appearance of one Raman mode at ~254cm-1 is attributed to zone-boundary phonon activated by surface disorders and finite-size effects. Moreover, the Raman-scattering intensities of certain phonons show a different resonantly enhanced behavior, which can be used to verify the information on the electronic structures and the electron-phonon interaction in GaN nanowires.
| 原文 | 英語 |
|---|---|
| 頁(從 - 到) | 245-251 |
| 頁數 | 7 |
| 期刊 | Chemical Physics Letters |
| 卷 | 345 |
| 發行號 | 3-4 |
| DOIs | |
| 出版狀態 | 已發佈 - 2001 9月 14 |
ASJC Scopus subject areas
- 一般物理與天文學
- 物理與理論化學
指紋
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