TITLE

Exciton line broadening in CdxZn1-xTe/ZnTe multiple quantum wells

AUTHOR(S)
Stanley, R. P.; Hegarty, J.; Feldman, R. D.; Austin, R. F.
PUB. DATE
October 1988
SOURCE
Applied Physics Letters;10/10/1988, Vol. 53 Issue 15, p1417
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We have investigated Cdx Zn1-xTe/ZnTe multiple quantum wells using absorption techniques. We have observed sharp excitonic features at low temperatures which strongly broaden at room temperature. The strength of the exciton-phonon coupling is determined from linewidth analysis. The large measured coupling explains the lack of well defined exciton resonances at room temperature, an important consequence for their use as optoelectronic devices.
ACCESSION #
9828386

 

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