Luminescence spectrometer

利用所要求的仪器，申请人将表征流体和冷冻溶液、固体和膜中的离散发光复合物和分子或其集合。样品将在可变温度下进行研究，以抑制振动弛豫，几何畸变和热激活的表面交叉，并研究近距离激发态的热平衡，特别是自旋翻转态，和热激活延迟荧光过程。除了光致发光光谱，（绝对）发光量子产率和激发态寿命的新型发光体，我们还将确定时间分辨衰减的情况下，和存在的潜在的猝灭剂和基板的光化学反应与过渡金属络合物和有机光催化剂（强度和寿命为基础的斯特恩-沃尔默分析）的进步。高光谱分辨率和宽激发和检测范围（UV/维斯/NIR）将与高时间分辨率（从亚纳秒到秒）相结合，以覆盖申请人的所有不同的研究系统。

With the requested instrumentation, the applicants will characterize discrete luminescent complexes and molecules or ensembles thereof in fluid and frozen solutions, solids and films. Samples will be investigated at variable temperatures down to 77 K to suppress vibrational relaxation, geometric distortion and thermally activated surface crossing and to study thermal equilibration of close-lying excited states, in particular spin-flip states, and thermally-activated delayed fluorescence processes. Besides photoluminescence spectra, (absolute) luminescence quantum yields and excited state lifetimes of novel luminophores, we will also determine time-resolved decays in the absence and presence of potential quenchers and substrates for the advancement of photochemical reactions with transition metal complexes and organic photocatalysts (intensity and lifetime-based Stern-Volmer analyses). High spectral resolution and broad excitation and detection ranges (UV/Vis/NIR) will be combined with high temporal resolution (from sub-ns to seconds) to cover all diverse investigated systems of the applicants.