| 分子链间距离对于卟啉侧链聚合物稳态及瞬态发光性能的影响 |
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| 引用本文： | 沈涵,余汉城,应翊,张伟,王惠,黄锦汪,计亮年.分子链间距离对于卟啉侧链聚合物稳态及瞬态发光性能的影响[J].发光学报,2008,29(4):732-736. |
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| 作者姓名： | 沈涵 余汉城 应翊 张伟 王惠 黄锦汪 计亮年 |
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| 作者单位： | 1. 中山大学, 光电材料与技术国家重点实验室, 广东, 广州, 510275;2. 中山大学, 化学与化工学院, 广东, 广州, 510275 |
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| 基金项目： | 国家自然科学基金
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广东省自然科学基金重点 |
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| 摘 要： | 采用荧光光谱技术,测量了一种卟啉侧链聚合物:卟啉丙烯酸酯-苯乙烯共聚物(P(por)A-S])的稳态和瞬态的发光性能.通过将聚合物P(por)A-S]掺杂到有机玻璃(PMMA)中,研究了链间距离对于P(por)A-S]发光性能的影响.结果表明:随着聚合物分子浓度增大,即链间距离减小,导致卟啉侧链基团之间的相互间作用增加,使其激发态无辐射跃迁几率增加,聚合物荧光强度减弱,激发态寿命缩短.讨论了上述过程产生的原因.
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| 关 键 词： | 卟啉侧链聚合物 发光性能 分子间相互作用 |
| 收稿时间： | 2007-10-15 |
Influence of Distance of Molecular Chains on Steady-static and Transient Luminescence of Porphyrin Side Chain Polymers |
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| SHEN Han,YU Han-cheng,YING Yi,ZHANG Wei,WANG Hui,HUANG Jin-wang,JI Liang-nian.Influence of Distance of Molecular Chains on Steady-static and Transient Luminescence of Porphyrin Side Chain Polymers[J].Chinese Journal of Luminescence,2008,29(4):732-736. |
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| Authors: | SHEN Han YU Han-cheng YING Yi ZHANG Wei WANG Hui HUANG Jin-wang JI Liang-nian |
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| Institution: | 1. The State Key Laboratory of Photoelectronic Materials and Technologies, Sun Yat-Sen University, Guangzhou 510275, China;2. School of Cheistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China |
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| Abstract: | The steady-static and transient luminescence in porphyrin side chain polymer P(por)A-S] doped in PMMA were studied by using transient and steady-state fluorescence spectroscopic technique.The results show that with the decrease of the interchain distance of P(por)A-S],the interactions of the porphyrins enhance which increase the nonradiating transition.As a result,the luminescence efficiency and the lifetime are inversely proportional to the interchain distance of P(por)A-S].We also discuss the origin of the luminescence of P (por)A-S] doped in PMMA. |
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| Keywords: | porphyrin side-chain polymer luminescence interchain molecular interaction |
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