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Recoverable Photodegradation of Light-Emitting Polymers

Published online by Cambridge University Press:  21 March 2011

X. H. Zhang ,
S. J. Chua ,
H. Wang  and
W. Huang
X. H. Zhang
Affiliation:
Institute of Materials Research and Engineering, 3 Research Link, Singapore, 117602
S. J. Chua
Affiliation:
Institute of Materials Research and Engineering, 3 Research Link, Singapore, 117602 Department of Electrical Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore, 119260
H. Wang
Affiliation:
Department of Electrical Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore, 119260
W. Huang
Affiliation:
Institute of Materials Research and Engineering, 3 Research Link, Singapore, 117602
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Abstract

The photodegradation of light-emitting polymers was studied by measuring the decay of the photoluminescence with exposure time to He-Cd laser beam at room temperature. It was found that the photoluminescence intensity decreases very fast initially, and then tends to saturate on the order of several tens of minutes. More interestingly, it was found that the degradation induced by laser beam can be self-healed. By stopping the exposure of the sample to the laser beam, the photoluminescence intensity recovers gradually without any treatment.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 598: Symposium BB – Electrical, Optical, & Magenetic Properties...V , 1999 , BB3.17
Copyright
Copyright © Materials Research Society 1999

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