The Fluorescence and Electroluminescence Properties of the Carbazole-Phenylazomethine Double Layer-Type Dendrimer

被引:29
作者
Albrecht, Ken [1 ]
Kasai, Yuto [1 ]
Yamamoto, Kimihisa [1 ]
机构
[1] Keio Univ, Fac Sci & Technol, Dept Chem, Yokohama, Kanagawa 2238522, Japan
关键词
Carbazole; Phenylazomethine; Dendrimer; Porphyrin; OLED; Light-harvesting antenna; LIGHT-EMITTING-DIODES; ELECTRON-TRANSPORT MATERIALS; DENDRON SIDE-CHAINS; CONJUGATED DENDRIMERS; BRIGHT ELECTROLUMINESCENCE; BLUE ELECTROLUMINESCENCE; RADIATIONLESS PROCESSES; MOLECULAR MATERIALS; RED; POLYFLUORENES;
D O I
10.1007/s10904-008-9239-3
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The fluorescence properties of double layer-type dendrimers with carbazole as the outer layer and phenylazomethine as the inner layer of the dendron with a zinc porphyrin core were studied. Based on the fluorescence quantum yield (solution), the effect of the bulky dendron to inhibit the interaction of the chromophores was confirmed. Additionally, the efficient light-harvesting property of the double layer-type dendron was revealed by the fluorescence measurement at several excitation wavelengths. These dendrimers were used as an emitting-layer in an OLED device. The electroluminescence of the core porphyrin was observed and it was shown that the double layer-type dendrimer with a luminescent core has the potential to be a hole-transporting/emitting material.
引用
收藏
页码:118 / 123
页数:6
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