Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 113, Issue 9, Pages 3862-3868Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp809911s
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Luminescent organic nanoparticles consisting of a green-emitting ESIPT compound DHBIA doped with a red-emitting dye MAFN have been prepared by the reprecipitation method. It was found that emission of nanoparticles can be tuned gradually from green to red by increasing doping levels. These nanoparticles could be analyzed as a system of densely packed chromophores that showed efficient energy transfer from DHBIA to MAFN. The energy transfer in these systems was assigned to the Forster resonance mechanism. A simple model was modified and used to analyze quantitatively this energy transfer behavior in doped nanoparticles. The bathochromic of guest emission was presumably due to solid state solvation effects (SSSE).
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