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](ClO_4)_2 and [Ru(bpy)_2 HPIP](ClO_4)_2

作　　者：徐忠扬[1] 王丽丽[1] 倪泉丰[1] 巢晖[2] 王惠[1] 张蕾[1] 计亮年[1,2] 

机构地区：[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

出　　处：《光学学报》2011年第8期293-299,共7页Acta Optica Sinica

基　　金：国家自然科学基金(11004256);广东省自然科学基金(9351027501000003);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

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](ClO42)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](ClO42)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。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.

关 键 词：激光光学 瞬态发光动力学 时间分辨光谱技术 钌配合物 激发态弛豫 

分 类 号：O43[机械工程—光学工程]