Emission properties of a molecularly doped highly fluorescent polymer

被引:13
作者
Dicker, G
Hohenau, A
Graupner, W
Tasch, S
Graupner, M
Hermetter, A
Schlicke, B
Schulte, N
Schlüter, AD
Scherf, U
Müllen, K
Leising, G
机构
[1] Graz Tech Univ, Inst Festkorperphys, A-8010 Graz, Austria
[2] Graz Tech Univ, Inst Bio Lebensmittelchem, A-8010 Graz, Austria
[3] Free Univ Berlin, Inst Organ Chem, D-14195 Berlin, Germany
[4] Max Planck Inst Polymerforsch, D-55128 Mainz, Germany
关键词
photo luminescence; excitation energy transfer; quantum yield; decay time; poly(para-phenylene);
D O I
10.1016/S0379-6779(98)00818-2
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We are investigating the photophysics of a conjugated, red emitting molecule (RS-19) as a guest in a blue emitting laddertype poly(para-phenylene) matrix (mLPPP) by means of steady state and cross-correlation fluorescence spectroscopy. We observe a very efficient excitation energy transfer from mLPPP to RS-19. Through varying the concentration of the red emitter in the host, we demonstrate changes in quantum yields (QY), energy transfer efficiencies (ETE), and decay times of the photo-generated species. The observed internal color conversion can be exploited in white light emitting diodes.
引用
收藏
页码:873 / 874
页数:2
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