Formation dynamics of excitons and temporal behaviors of Fano resonance due to the exciton-impurity-phonon configuration interaction in ZnO.

Journal Article (Journal Article)

Formation dynamics of free and neutral donor bound excitons (FX and D(0)X) in a high quality ZnO single crystal are studied by means of time-resolved photoluminescence (TRPL) at various temperatures. At low-temperatures, FX and D(0)X formation times are determined to be ~5 and ~10 ps, respectively, by fitting the rise process with the Boltzmann sigmoidal function. Temporal information of FX- and D(0)X-longitudinal optical (LO) phonon coupling is also acquired by measuring TRPL spectra of the first-order LO phonon-assisted FX and D(0)X transitions. In particular, interesting time evolution of luminescence intensity in the Fano resonance region due to the configuration interaction of exciton-impurity-phonon is explored.

Full Text

Duke Authors

Cited Authors

  • Zheng, CC; Xu, SJ; Ning, JQ; Chen, YN; Li, BK; Wang, JN; Che, CM

Published Date

  • January 2012

Published In

Volume / Issue

  • 116 / 1

Start / End Page

  • 381 - 385

PubMed ID

  • 22148249

Electronic International Standard Serial Number (EISSN)

  • 1520-5215

International Standard Serial Number (ISSN)

  • 1089-5639

Digital Object Identifier (DOI)

  • 10.1021/jp209919n


  • eng