Radiative Relaxation Quantum Yields for Synthetic Eumelanin ¶

@article{Meredith2004RadiativeRQ,
  title={Radiative Relaxation Quantum Yields for Synthetic Eumelanin ¶},
  author={Paul Meredith and Jenny Riesz},
  journal={Photochemistry and Photobiology},
  year={2004},
  volume={79}
}
We report absolute values for the radiative relaxation quantum yield of synthetic eumelanin as a function of excitation energy. These values were determined by correcting for pump beam attenuation and emission reabsorption in both eumelanin samples and fluorescein standards over a large range of concentrations. Our results confirm that eumelanins are capable of dissipating >99.9% of absorbed UV and visible radiation through nonradiative means. Furthermore, we have found that the radiative… Expand
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