| 1 | Synthesis of New Multibranch Chromophores with Strong Light-emitting in Solution and in PMMA Film显示文摘Three new chromophores with triphenylamine as molecular focal point bearing one, two, or three 4-(n-butyloxystyryl) group(s) at the periphery respectively, (named as T1, T2, and T3) have been synthesized and characterized. It is interesting to find that the fluorescence quantum yield increases from T1 (0.489), to T3 (0.535), and to T2 (0.628) in cyclohexane, meanwhile the lifetime for T3 is shorter than T1 and T2, which is an important characteristic for applications in light emitting diode. Also PMMA (polymethyl methacrylate) film doped with T3 gives stronger fluorescence than T1, and T2. Cyclic voltammetry showed that T3 exhibited lowest oxidation potential of 0.52 V vs SCE, suggesting its better hole-transport property. | XiaoMeiWANG TianSheYANG PingYANG QinFenSHI WanLiJANG HongDeXIE | 2003 | Chinese Chemical Letters2003，14，11： | 1 |
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