Improved insights in time-resolved photoelectron imaging
Improved insights in time-resolved photoelectron imaging
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DOI：
10.1039/d1cp00933h
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发表时间：
2021-04-28
影响因子：
3.3
通讯作者：
Townsend, Dave
中科院分区：
文献类型：
--
作者：
Kotsina, Nikoleta;Townsend, Dave
时间分辨光电子成像（TRPEI）是一种高微分技术，用于详细研究紫外光吸收后分子电子激发态下的非绝热能量再分布动力学。这一观点简要回顾了TRPEI方法的主要内容，但也试图解决其局限性。借助我们最近工作中的各种例子，我们说明了在分析和解释实验数据过程中经常遇到的一些挑战，并介绍了一些关于帮助处理这些挑战的方法的初步想法。我们还讨论了一些新的方法，旨在扩大的能力和实用性的TRPEI技术通过延长观察窗口沿着的光化学反应坐标（S）和提高时间分辨率。鉴于TRPEI和相关超快光谱的广泛使用，我们预计这一观点将引起相当大的研究团体的广泛兴趣。此外，我们希望它也能为那些第一次参与这一主题的人提供有用的概述。
Time-resolved photoelectron imaging (TRPEI) is a highly differential technique for the detailed study of non-adiabatic energy redistribution dynamics operating in the electronically excited states of molecules following the absorption of ultraviolet light. This Perspective briefly reviews the main elements of the TRPEI method but also seeks to address some of its limitations. With the help of various examples drawn from our own recent work, we illustrate some of the challenges commonly encountered during the analysis and interpretation of experimental data and introduce some initial thoughts on approaches to help deal with them. We also discuss some novel methods that aim to expand the capabilities and utility of the TRPEI technique by extending the observation window along the photochemical reaction coordinate(s) and improving the temporal resolution. Given the widespread use of TRPEI and related ultrafast spectroscopies, we anticipate that this Perspective will be of broad interest to a sizeable research community. Furthermore, we hope it will also serve as a useful overview for those engaging with this topic for the first time.