Luminescence dynamics in Ga(AsBi)

Sebastian Imhof, Christian Wagner, Angela Thränhardt, Alexej Chernikov, Martin Koch, Niko S. Köster, Sangam Chatterjee, Stephan W. Koch, Oleg Rubel, Xianfeng Lu, Shane Johnson, Daniel A. Beaton, Thomas Tiedje

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


The temporal evolution of the spectrally resolved luminescence is measured for a Ga(AsBi) sample at low temperatures. The results are analyzed with the help of kinetic Monte Carlo simulations incorporating two disorder scales attributed to alloy disorder and Bi- clustering. An average time of 5 ps is identified as the upper limit for carrier capture into the Bi clusters whereas the extracted hopping rate associated with alloy fluctuations is much faster than the transitions between the individual cluster sites.

Original languageEnglish (US)
Article number161104
JournalApplied Physics Letters
Issue number16
StatePublished - Apr 18 2011

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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