Synthesis and characterization of core-shell GaP@GaN and GaN@GaP nanowires

Hung Min Lin, Yong Lin Chen, Jian Yang, Yao Chung Liu, Kai Min Yin, Ji Jung Kai, Fu Rong Chen, Li Chyong Chen, Yang Fang Chen, Chia Chun Chen*

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

135 引文 斯高帕斯(Scopus)

摘要

A convenient thermal CVD route to core-shell GaP@GaN and GaN@GaP nanowires is developed. The structural analyses indicate that the nanowires exhibit a two-layer and wirelike structure. High-resolution transmission electron microscopy (HRTEM) images reveal misfit dislocation loops at the interface of the nanowires. Unusual temperature dependences of the photoluminescence (PL) intensity of GaP@GaN nanowires are observed, and they are interpreted by the piezoelectric effect induced from lattice mismatch between two semiconductor layers. In the Raman spectra of GaN@GaP nanowires, an unexpected peak at 386 cm-1 is found and assigned to a surface phonon mode.

原文英語
頁(從 - 到)537-541
頁數5
期刊Nano Letters
3
發行號4
DOIs
出版狀態已發佈 - 2003 4月 1

ASJC Scopus subject areas

  • 生物工程
  • 化學 (全部)
  • 材料科學(全部)
  • 凝聚態物理學
  • 機械工業

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