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Characteristics of excitonic emission in diamond
Author(s) -
Okushi Hideyo,
Watanabe Hideyuki,
Kanno Shokichi
Publication year - 2005
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200561922
Subject(s) - exciton , diamond , semiconductor , spectral line , emission spectrum , excited state , line (geometry) , atomic physics , chemistry , condensed matter physics , materials science , physics , optoelectronics , quantum mechanics , geometry , mathematics , organic chemistry
Detailed characteristics of excitonic emission in diamond have been studied by theoretical considerations taking into account the indirect semiconductor properties to calculate precise simulated spectra of the excitonic emission. The simulated excitonic emission spectra agree well with the observed spectra in our high quality diamond thin films, showing that the chemical potential of the exciton gas can be reduced precisely. The results indicate that (1) the characteristics of exciton emission of indirect semiconductors are much difference than those of direct ones, (2) exciton collisions cause line broadening and (3) quantum statistical (Bose–Einstein statistics) properties appear for highly excited exciton densities in diamond. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)