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

@article{Embaye2008MechanismsOR,
  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},
  year={2008},
  volume={129 5},
  pages={
          054504
        }
}
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
We report observations that dye-doped PMMA polymer with the organic dye Disperse Orange 11 exhibits self healing after photodegradation by continuous optical pumping whereas in liquid solution,
Wavelength dependence of reversible photodegradation of disperse orange 11 dye-doped PMMA thin films
Using transmittance imaging microscopy, we measure the wavelength dependence of reversible photodegradation in disperse orange 11 (DO11) dye-doped (poly)methyl-methacrylate (PMMA). The reversible and
The role of the polymer host on reversible photodegradation in Disperse Orange 11 dye
The photodegradation and recovery process in anthraquinone chromophores have been characterized using am plified spontaneous emission (ASE) in several Anthraquinone derivatives doped in poly(methyl
The effect of pump depletion on reversible photodegradation
Abstract We model the effect of pump depletion on reversible photodegradation using the extended domain model [Anderson and Kuzyk, arXiv:1309.5176v1, 2013] and the Beer–Lambert law. We find that
Spectroscopic studies of the mechanism of reversible photodegradation of 1-substituted aminoanthraquinone-doped polymers.
TLDR
Findings suggest that photodegradation of 1-substituted aminoanthraquinones doped in polymers originates from interactions between dyes and photoinduced thermally degraded polymers, and the metastable product may recover or further degrade irreversibly.
Recovery of photodegraded rhodamine 6g in ester-containing polymer matrices.
TLDR
Recovery of the ASE signal is observed in dye-doped thermoplastic polyurethane and glycol-modified poly(ethylene terephthalate); both polymers contain repeating ester groups in their backbone to mediate the full recovery of rhodamine 6g from a photodegraded state.
Imaging studies of temperature dependent photodegradation and self-healing in disperse orange 11 dye-doped polymers.
TLDR
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.
Measuring electric field dependent photodegradation and recovery of disperse orange 11 dye doped polymer thin films using photoconductivity and digital imaging microscopy
One of the limiting factors of optical devices for space applications is photodamage from high intensity light and radiation. Dye doped polymers offer many advantages in device design but are
Polylactic acid promotes healing of photodegraded disperse orange 11 molecules
Abstract We report on the recovery of a photodegraded organic molecule mediated by a biopolymer. Amplified spontaneous emission (ASE) from disperse orange 11 (DO11) dye-doped polylactic acid (PLA)
Testing the diffusion hypothesis as a mechanism of self-healing in Disperse Orange 11 doped in poly(methyl methacrylate)
In this work, we show that reversible photodegradation of Disperse Orange 11 doped in poly(methyl methacrylate) is not due to dye diffusion—a common phenomenon observed in many dye-doped polymers.
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