Научно-технический
«ОПТИЧЕСКИЙ ЖУРНАЛ»
издается с 1931 года
Апрель 2014 № 4(81)
УДК 541.64

Optical investigation of photo-bleaching effects in organic Alq3 thin films

Бонфигли Ф. ., Брогиоли Д. ., Винценти М. ., Монтереали Р. .

The photo-bleaching effects of selective ultraviolet and blue light illumination on the photoluminescence spectra of thermally evaporated tris(8-hydroxy-quinoline) aluminum (Alq3) thin films exposed in air were investigated by fluorescence spectroscopyand advanced optical imaging techniques. The photoluminescence intensity time behavior observed in the Alq3 films at different excitation powers allows to establish that Alq3 molecules in their exciting state are involved in these complex phenomena.  The photobleaching processes were exploited for direct laser patterning of the investigated Alq3thin films.
Ключевые слова: organic light-emitting materials, Alq3, photoluminescence, thin films, laser patterning
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