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Photoluminescence under high-electric field of PbS quantum dots

โœ Scribed by Ullrich, B.; Wang, J. S.; Brown, G. J.


Book ID
118130005
Publisher
American Institute of Physics
Year
2012
Tongue
English
Weight
868 KB
Volume
2
Category
Article
ISSN
2158-3226

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We report the effect of dual beam excitation on the photoluminescence (PL) from PbS quantum dots in polyvinyl alcohol by using two excitation lasers, namely Ar + (514.5 nm) and He-Ne laser (670 nm). Both sources of excitation gave similar PL spectra around 1.67 eV (related to shallow traps) and 1.1