Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1440769 | Synthetic Metals | 2015 | 4 Pages |
Abstract
•Illumination of MEH-PPV thin films leads to photoluminescence (PL) enhancement.•High annealing temperatures reduce the enhancement of PL upon illumination.•After stopping the illumination, the enhanced PL is stable for days.•Illumination can be used as a processing method for conjugated polymeric materials.
We report on the enhancement of photoluminescence in thin films of poly[2-methoxy-5-((2′-ethylhexyl)oxy)-1,4-phenylenvinylene], neat or embedded in polystyrene, upon illumination with light as a function of annealing temperature, with our data emphasizing the picture of a light-induced conformation change that leads to the altered photophysical response of this polymer.
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Authors
Ioan Botiz, Paul Freyberg, Cosmin Leordean, Ana-Maria Gabudean, Simion Astilean, Arnold Chang-Mou Yang, Natalie Stingelin,