We report on ultraviolet Raman spectroscopy of InxGa1-xN thin films grown on sapphire by metal-organic chemical vapor deposition. The A1(LO) and E2 phonon mode behavior was investigated over a large compositional range (0<x<0.50). Compelling evidence is presented for one-mode behavior for the A1(LO) phonon, and data suggestive of two-mode behavior are presented for the E2 phonon.
ASJC Scopus subject areas
- Physics and Astronomy(all)