Mechanisms of reversible photodegradation in disperse orange 11 dye doped in PMMA polymer
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چکیده
منابع مشابه
Mechanisms of reversible photodegradation in disperse orange 11 dye doped in PMMA polymer.
We use amplified spontaneous emission (ASE) and linear absorption spectroscopy to study the mechanisms of reversible photodegradation of 1-amino-2-methylanthraquinone (disperse orange 11-DO11) in solid poly(methyl methacrylate). Measurements as a function of intensity, concentration, and time suggest that ASE originates in a state (be it a tautomer or a vibronic level) that can form a dimer or ...
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We report the observation of intensity feedback random lasing at 645 nm in Disperse Orange 11 dye-doped PMMA (DO11/PMMA) with dispersed ZrO2 nanoparticles (NPs). The lasing threshold is found to increase with concentration, with the lasing threshold for 0.1 wt% being 75.8 ± 9.4 MW/cm and the lasing threshold for 0.5 wt% being 121.1 ± 2.1 MW/cm, with the linewidth for both concentrations found t...
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Humidity detection, and the quest for low-cost facile humidity-sensitive indicator materials is of great interest for many fields, including semi-conductor processing, food transport and storage, and pharmaceuticals. Ideal humidity-detection materials for a these applications might be based on simple clear optical readout with no power supply, i.e.: a clear color change observed by the naked ey...
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ژورنال
عنوان ژورنال: The Journal of Chemical Physics
سال: 2008
ISSN: 0021-9606,1089-7690
DOI: 10.1063/1.2963502