Shedding Light on Luminescence Lifetime Measurement and Associated Data Treatment

IF 3.7 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Advanced Photonics Research Pub Date : 2024-07-15 DOI:10.1002/adpr.202400081
Waygen Thor, Jean‐Claude G. Bünzli, Ka‐Leung Wong, P. A. Tanner
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Abstract

Luminescence lifetime is a crucial parameter in photophysical studies that bears essential physical and chemical information and that is used to quantify a variety of phenomena, from the determination of quenching mechanisms to temperature sensing and bioimaging. The current perception of lifetime measurement is that it is a trivial and fast experiment. However, despite this apparent simplicity, measuring luminescence decay and fitting the obtained data to a suitable model can be far more intricate. In this perspective, the influence of experimental parameters and fitting procedures on the determination of lifetimes are investigated and, through carefully chosen examples, it is shown that large variations, up to 10%, can be induced by varying parameters such as the data acquisition time, the baseline evaluation, or the mathematical fitting model. In order to present to a wider audience, detailed mathematical descriptions are kept out of the manuscript.
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发光寿命测量及相关数据处理的启示
发光寿命是光物理研究中的一个重要参数,它承载着重要的物理和化学信息,可用于量化各种现象,包括确定淬灭机制、温度传感和生物成像。目前,人们对寿命测量的看法是,这是一个微不足道的快速实验。然而,尽管表面上看似简单,测量发光衰减并将获得的数据拟合到一个合适的模型中却要复杂得多。从这个角度出发,我们研究了实验参数和拟合程序对测定寿命的影响,并通过精心挑选的例子说明,改变数据采集时间、基线评估或数学拟合模型等参数,可以引起高达 10% 的巨大变化。为了向更广泛的读者介绍,手稿中没有详细的数学说明。
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