Emission mechanism in polyimide

The fluorescence properties of pyromellitic dianhydride-oxydianiline (PDMA-ODA) polyimide are described. The quantum efficiency of fluorescence following excitation at 290 nm is measured to be 10 −6. The spectroscopically parametrized (complete neglect of differential overlap) CNDO/S3 model is used...

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Veröffentlicht in:	Polymer (Guilford) 1990-05, Vol.31 (5), p.840-844
Hauptverfasser:	Arjavalingam, G., Hougham, G., LaFemina, J.P.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Exact sciences and technology laser ablation Physicochemistry of polymers polyimide polymer fluorescence Polymers and radiations Properties and characterization
Online-Zugang:	Volltext
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Zusammenfassung:	The fluorescence properties of pyromellitic dianhydride-oxydianiline (PDMA-ODA) polyimide are described. The quantum efficiency of fluorescence following excitation at 290 nm is measured to be 10 −6. The spectroscopically parametrized (complete neglect of differential overlap) CNDO/S3 model is used to provide a quantitative description of the emission spectrum, and to make some preliminary conclusions about the mechanism responsible for laser etching of polyimides.
ISSN:	0032-3861 1873-2291
DOI:	10.1016/0032-3861(90)90044-Y