| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9566799 | Applied Surface Science | 2005 | 5 Pages |
Abstract
We report that two colors of red and green have been produced on an initially transparent CPV/PVA samples through UV laser-induced photo-chemical reactions. This is believed the first observation of laser-induced multiple-colors in the given polymer matrix. It is believed that the colorants underwent photo-effected electron transfer with suitable electron donors from the polymers to change from colorless bipyridilium Bipm2+ to the colored Bipm+ species. The discovery may lead to new approaches to the development of laser-evoked multiple coloration in polymers.
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Authors
H.Y. Zheng, David Rosseinsky, G.C. Lim,