High performance fluorescence lifetime spectrometer

所要求的高性能荧光寿命光谱仪将在物理化学III主席（AG Marschall）的一个房间内集中操作，并将提供给广泛的用户，包括那些研究晶体氧化物，配位化合物和粉末，薄膜和溶液形式的蛋白质的用户。该设备能够测量温度控制的稳态以及瞬态光致发光的所有命名的样品的几何形状。该设备还提供了在紫外光范围（266 nm，355 nm）和可见光范围（532 nm）内使用超短脉冲进行寿命测量的可能性，因此可以使用所有三种激发波长在低皮秒范围内测量发光寿命。因此，合成材料改性（例如，通过半导体的化学改性、配位化合物的配体设计的带隙减小）和伴随的改变的激发/复合/发射可以通过在相同时间尺度上的测量直接比较，以提供对例如光催化活性或发光配体和金属中心之间的交换相互作用的影响的更深入的理解。

The requested high-performance fluorescence lifetime spectrometer is to be operated centrally in a room of the Chair of Physical Chemistry III (AG Marschall), and will be available to a wide range of users, including those working on crystalline oxides, coordination compounds, and proteins in the form of powders, thin films and solutions. The device enables measurements for temperature-controlled steady-state as well as transient photoluminescence on all named sample geometries. The device also offers the possibility of excitation for lifetime measurements both in the UV light range (266 nm, 355 nm) and in the visible light range (532 nm) with ultrashort pulses, so that measurements of luminescence lifetimes in the low picosecond range with all three excitation wavelengths are possible. As a result, synthetic material modifications (e.g., band gap reduction by chemical modification of semiconductors, ligand design of coordination compounds) and concomitant altered excitation/recombination/emission can be directly compared by measurements on identical time scales to provide a deeper understanding of the impact on e.g. photocatalytic activity or exchange interactions between luminescent ligands and metal centers.