Detection of non-equilibrium longitudinal optical phonons in InN and its consequences

W. Liang, Kong-Thon Tsen, C. Poweleit, D. K. Ferry, Shaw Wei D Tsen, Hai Lu, William J. Schaff

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Picosecond Raman spectroscopy has been used to study properties of non-equilibrium longitudinal optical phonons in a high quality, single crystal wurtzite structure InN sample. Our experimental results show that the bandgap of InN cannot be around 1.89 eV; but are consistent with a bandgap of around 0.8 eV. Our results provide a concrete evidence that 0.8 eV-luminescence observed recently in InN cannot be due to deep level radiative emission in InN.

Original languageEnglish (US)
Title of host publicationPhysica Status Solidi C: Conferences
Pages2324-2327
Number of pages4
Volume2
Edition7
DOIs
StatePublished - 2005

ASJC Scopus subject areas

  • Condensed Matter Physics

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    Liang, W., Tsen, K-T., Poweleit, C., Ferry, D. K., Tsen, S. W. D., Lu, H., & Schaff, W. J. (2005). Detection of non-equilibrium longitudinal optical phonons in InN and its consequences. In Physica Status Solidi C: Conferences (7 ed., Vol. 2, pp. 2324-2327) https://doi.org/10.1002/pssc.200461309