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Emission of Precipitation Deposited PbS Quantum Dots on Polyethylene Terephthalate

Published online by Cambridge University Press:  08 October 2013

Bruno Ullrich*
Affiliation:
Air Force Research Laboratory, Materials & Manufacturing Directorate, Wright Patterson AFB, OH 45433-7707, USA
Andrew R. Markelonis
Affiliation:
Air Force Research Laboratory, Materials & Manufacturing Directorate, Wright Patterson AFB, OH 45433-7707, USA
Joanna S. Wang
Affiliation:
Air Force Research Laboratory, Materials & Manufacturing Directorate, Wright Patterson AFB, OH 45433-7707, USA
Gail J. Brown
Affiliation:
Air Force Research Laboratory, Materials & Manufacturing Directorate, Wright Patterson AFB, OH 45433-7707, USA
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Abstract

Centrifuge enforced precipitation was used to disperse PbS quantum dots (diameter 4.7 nm) on polyethylene terephthalate. By employing double frequency Fourier transform spectroscopy, we studied the emission properties of the sample. Gaussian shaped emission spectra from cryogenic temperatures up to room temperatures were observed, demonstrating the potential of PbS quantum dots to be used as light emitters in combination with organic matrices. One interesting feature is that the linewidth of the emission spectrum does not follow the expected thermal broadening.

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Articles
Copyright
Copyright © Materials Research Society 2013 

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