In this study, we investigated photo-induced electron transfer (PET) dynamics from [Ru(bpy)₃]²⁺ to MV²⁺ codoped in ionic nanospheres by picosecond time-resolved luminescence spectroscopy. The luminescence from [Ru(bpy)₃]²⁺ was decreased with an increase of the MV²⁺ content in nanospheres, suggesting an electron transfer from the ³MLCT excited state of [Ru(bpy)₃]²⁺ to MV²⁺. The fast decay component with the time-constant of 62 ns was found in the luminescence decay kinetics. This component is associated with a Perrin-type electron transfer and increases with an increase of the MV²⁺ content, suggesting the efficient Perrin-type electron transfer in the higher MV²⁺ content. In addition, the decay component of 280∼410 ns depending on a MV²⁺ concentration is explained by the dynamic-type electron transfer since the inverse lifetime of this component exhibits the linear dependence on the MV²⁺ content. The Perrin- and dynamic-type electron transfer rates were determined to be 1.4 × 10⁷ s⁻¹ and 7.8 × 10⁻³ nmol⁻¹ mg μs⁻¹, respectively. The PET efficiency was determined 70 % in ionic nanospheres containing 92 nmol/mg of [Ru(bpy)₃]²⁺ and 152 nmol/mg of MV²⁺.

在这项研究中，我们通过皮秒时间分辨发光光谱研究了从离子纳米球共掺杂的[Ru（bpy）₃ ] ²⁺到MV ^2+的光诱导电子转移（PET）动力学。[Ru（bpy）₃ ] ²⁺的发光随着纳米球中MV ²⁺含量的增加而降低，表明电子从[Ru（bpy）₃ ] ²⁺的³ MLCT激发态转移到MV ²⁺。在发光衰减动力学中发现了时间常数为62 ns的快速衰减分量。该成分与Perrin型电子转移相关，并且随着MV的增加而增加²⁺含量，表明在较高MV ²⁺含量下有效的Perrin型电子转移。另外，取决于MV ²⁺浓度的280〜410 ns的衰减分量通过动态型电子传递来解释，因为该分量的逆寿命表现出对MV ²⁺含量的线性依赖性。的Perrin-和动态型电子传输速率被确定为1.4×10 ⁷小号^-1和7.8×10 ^-3纳摩尔^-1毫克微秒^-1，分别。在含有92 nmol / mg [Ru（bpy）₃ ] ^2+的离子纳米球中，PET效率确定为70％152 nmol / mg MV ²⁺。