Journal
MICROELECTRONICS JOURNAL
Volume 36, Issue 3-6, Pages 234-236Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.mejo.2005.02.016
Keywords
ZnO; nanocrystals; polyacrylamide; quantum dots; optical properties
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ZnO nanocrystals were successfully fabricated by wet-chemical method. Optical properties of excitons confined in ZnO nanocrystals were studied by measuring both optical absorption and photoluminescence spectra. Absorption due to free excitons was clearly observed whereas strong PL lines were recorded in the UV region at around the exciton absorption energy. Red-shift of optical features with increasing annealing time indicates an increase in quantum dot size. (c) 2005 Published by Elsevier Ltd.
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