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两种钌配合物皮秒发光动力学过程研究

Study on Picosecond Luminescence Dynamics of [Ru(bpy)3](ClO4)2 and [Ru(bpy)2HPIP](ClO4)2

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摘要

采用稳态发光光谱、瞬态发光动力学测量等手段,对两种钌配合物[Ru(bpy)3](ClO4)2和[Ru(bpy)2HPIP](ClO4)2的发光性质进行了研究。稳态发光光谱表明[Ru(bpy)2HPIP](ClO4)2发光明显偏弱;皮秒瞬态发光动力学测量显示[Ru(bpy)2HPIP](ClO4)2的激发态弛豫过程存在皮秒量级的快过程,可能与由于HPIP配体的存在,使电荷转移态和溶剂分子产生氢键作用有关。纳秒瞬态发光动力学测量的结果则显示了所有样品共同具有的瞬态发光衰减过程,实验结果符合能隙定律,推断其来自没有和溶剂分子形成氢键结合的配合物的激发态弛豫过程。

Abstract

The luminescence properties of two kinds of ruthenium complexes, [Ru(bpy)3](ClO4)2 and [Ru(bpy)2HPIP](ClO4)2, are studied by steady-state and transient emission spectroscopy. The steady-state luminescence spectrum shows that [Ru(bpy)2HPIP](ClO4)2 has a weaker luminescence intensity. And the transient emission spectrum exhibits that there is a fast component within the excited-state relaxation of [Ru(bpy)2HPIP](ClO4)2, which may be due to the hydrogen-bonding between metal-ligand-charge-transfer (MLCT) state and solvent molecules. But the measured result of their nanosecond transient luminescence indicates that they have the same transient luminescence decay process. And this decay process accords with the energy gap law. It maybe corresponds to the excited-state relaxation of the MLCT state without combination with the solvent molecules.

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中图分类号:O43

DOI:10.3788/aos201131.0830001

所属栏目:光谱学

基金项目:国家自然科学基金(11004256)、广东省自然科学基金(9351027501000003)和中山大学光电材料与技术国家重点实验室开放课题资助课题。

收稿日期:2011-03-22

修改稿日期:2011-04-20

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徐忠扬:中山大学光电材料与技术国家重点实验室, 广东 广州 510275
王丽丽:中山大学光电材料与技术国家重点实验室, 广东 广州 510275
倪泉丰:中山大学光电材料与技术国家重点实验室, 广东 广州 510275
巢晖:中山大学化学与化工学院, 广东 广州 510275
王惠:中山大学光电材料与技术国家重点实验室, 广东 广州 510275
张蕾:中山大学光电材料与技术国家重点实验室, 广东 广州 510275
计亮年:中山大学光电材料与技术国家重点实验室, 广东 广州 510275

联系人作者:徐忠扬(xzyxzy263@sina.com)

备注:徐忠扬(1988—),男,本科生,主要从事生物分子中超快过程方面的研究。

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引用该论文

Xu Zhongyang,Wang Lili,Ni Quanfeng,Chao Hui,Wang Hui,Zhang Lei,Ji Liangnian. Study on Picosecond Luminescence Dynamics of [Ru(bpy)3](ClO4)2 and [Ru(bpy)2HPIP](ClO4)2[J]. Acta Optica Sinica, 2011, 31(8): 0830001

徐忠扬,王丽丽,倪泉丰,巢晖,王惠,张蕾,计亮年. 两种钌配合物皮秒发光动力学过程研究[J]. 光学学报, 2011, 31(8): 0830001

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