Author:
Wang Rui-Min ,Chen Guang-De ,Zhu You-Zhang ,
Abstract
Hexagonal InxGa1-xN film grown by metalorganic chemical vapor deposition (MOCVD) was studied by Micro-Raman scattering and X-ray diffraction. The phase separation was observed in InxGa1-xN, the biaxial stress was measured by both Raman and X-ray diffraction. In Raman spectroscopy, the A1(LO) mode of InxGa1-xN is absent. Instead, the LO phonon-plasmon coupled mode (LPP+) was observed at about 778 cm-1. The carrier concentration was determined by the frequency of the coupled mode. The E2 and A1(TO)modes of InxGa1-xN layer exhibit a down-shift compare to those of GaN layer. At low temperature, the peak induced by electronic transition was observed in Raman spectra of InxGa1-xN.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
Cited by
6 articles.
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