Optical properties of AIN and GaN in elevated temperatures

Research output: Contribution to journalArticle

52 Scopus citations

Abstract

Deep ultraviolet photoluminescence spectroscopy has been employed to study the optical transitions in AlN and GaN epilayers at temperatures from 10 to 800 K, from which the parameters that describe the temperature variation of the energy band gap (α and β or α β and θ) and linewidth broadening have been obtained. These parameters are compared with the previously reported values in AlN and GaN obtained by different methods in narrower temperature ranges. Our experimental results demonstrate that the broader temperature range of measurements is necessary to obtain accurate values of these parameters, particularly for AlN. These results, together with other well-known physical properties of AlN, may expand future prospects for the application of III-nitride materials.

Original languageEnglish
Pages (from-to)3489-3491
Number of pages3
JournalApplied Physics Letters
Volume85
Issue number16
DOIs
StatePublished - Oct 18 2004

Fingerprint Dive into the research topics of 'Optical properties of AIN and GaN in elevated temperatures'. Together they form a unique fingerprint.

  • Cite this