Trap Assisted Carrier Recombination in 4-(Dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran Doped Bis[2-(2-hydroxyphenyl)bezoxazolate] Zinc

概要

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The energy transfer mechanism has been studied in 4-(dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyram (DCM) doped zinc complex bis[2-(2-hydroxyphenyl) bezoxazolate]zinc [Zn(hpb)2]. The photoluminescence of the zinc complex and the optical absorption of the dye molecule have been found to have a large overlap favoring Förster mechanism for energy transfer from the host to the dye molecule. The photoluminescence of the host–guest system has been assigned to Förster type energy transfer where as the electroluminescence has been found to be dominated by trap assisted recombination and subsequent decay of excitons. The charge carrier trapping has been supported by electrical transport studies.
Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
2008-05-25