期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 72, 期 13, 页码 4727-4732出版社
AMER CHEMICAL SOC
DOI: 10.1021/jo0703911
关键词
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A new class of highly fluorescent and stable carbazole-based dendrimers (1-5) that contain the ethynylbenzene and diethynylbenzene cores has been synthesized and characterized. They show very high extinction coefficients of absorption (A(max) approximate to 328-353 nm) and high quantum yields of fluorescence (lambda(max) approximate to 386-437 nm; Phi(F) approximate to 0.72-0.89; tau(F) approximate to 2.09-3.91 ns) in dichloromethane. The quantum yields of fluorescence of 1-5 in the solid state are equally high (lambda(max) approximate to 385-422 nm; Phi(F) approximate to 0.40-0.85). These data indicate their potential use as blue-emitting materials in organic light-emitting diodes (OLEDs).
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