The Fluorescence and Electroluminescence Properties of the Carbazole–Phenylazomethine Double Layer-Type Dendrimer
The Fluorescence and Electroluminescence Properties of the Carbazole–Phenylazomethine Double Layer-Type Dendrimer
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DOI：
10.1007/s10904-008-9239-3
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发表时间：
2009-03
影响因子：
4
通讯作者：
Ken Albrecht;Yuto Kasai;Kimihisa Yamamoto
中科院分区：
文献类型：
--
作者：
Ken Albrecht;Yuto Kasai;Kimihisa Yamamoto
研究了以咔唑为外层、苯甲亚胺为内层的双层结构锌卟啉树枝状大分子的荧光性质。基于荧光量子产率（溶液），确认了大体积树枝化基元抑制发色团相互作用的效果。此外，在几个激发波长下的荧光测量揭示了双层型树突的高效捕光性能。这些树枝状聚合物被用作OLED器件中的发射层。观察到的核心卟啉的电致发光，它表明，双层型树枝状聚合物与发光核心具有潜在的空穴传输/发射材料。
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.