Mechanisms of reversible photodegradation in disperse orange 11 dye doped in PMMA polymer.

  title={Mechanisms of reversible photodegradation in disperse orange 11 dye doped in PMMA polymer.},
  author={Natnael B. Embaye and Shiva K. Ramini and Mark G. Kuzyk},
  journal={The Journal of chemical physics},
  volume={129 5},
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 some other aggregate upon relaxation, which through fluorescence quenching leads to degradation of the… 

Recent progress in reversible photodegradation of Disperse Orange 11 when doped in PMMA

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The role of the polymer host on reversible photodegradation in Disperse Orange 11 dye

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Recovery of photodegraded rhodamine 6g in ester-containing polymer matrices

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While the temperature dependence predictions of the modified correlated chromophore domain model (mCCDM) are confirmed, it is found that it is quantitatively incompatible with the mCCDM as recovery in DO11/PS is found to behave as a stretched (or double) exponential as a function of time.

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Testing the diffusion hypothesis as a mechanism of self-healing in Disperse Orange 11 doped in poly(methyl methacrylate)

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Lasing action and photodegradation of Disperse Orange 11 dye in liquid solution

We report optically pumped lasing action near 650nm of 1-amino-2-methylanthraquinone (known as Disperse Orange 11 or DO11) in the common laser dye solvents dimethylformamide and dimethylsulfoxide.

Amplified spontaneous emission and recoverable photodegradation in polymer doped with Disperse Orange 11

We report optically pumped lasing action at the attractive wavelength of 650 nm in the common organic dye 1-amino-2-methylanthraquinone (Disperse Orange 11). The dye was incorporated into poly(methyl

Two-photon fluorescence measurements of reversible photodegradation in a dye-doped polymer.

The energy dependence suggests that photodegradation is a linear process, while recovery is entropic, which could be useful to high-intensity devices such as two-photon absorbers, which can be used in many applications.

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