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Below Band Gap Formation of Solvated Electrons in Neutral Water Clusters?
The Journal of Physical Chemistry A ( IF 2.9 ) Pub Date : 2020-09-02 , DOI: 10.1021/acs.jpca.0c06935
Loren Ban 1 , Christopher W West 1 , Egor Chasovskikh 1 , Thomas E Gartmann 1 , Bruce L Yoder 1 , Ruth Signorell 1
Affiliation  

Below band gap formation of solvated electrons in neutral water clusters using pump–probe photoelectron imaging is compared with recent data for liquid water and with above band gap excitation studies in liquid and clusters. Similar relaxation times on the order of 200 fs and 1–2 ps are retrieved for below and above band gap excitation, in both clusters and liquid. The independence of the relaxation times from the generation process indicates that these times are dominated by the solvent response, which is significantly slower than the various solvated electron formation processes. The analysis of the temporal evolution of the vertical electron binding energy and the electron binding energy at half-maximum suggests a dependence of the solvation time on the binding energy.

中文翻译:

中性水团簇中溶剂化电子的带隙形成以下?

下面将使用泵浦探针光电子成像在中性水团簇中形成的溶剂化电子的带隙以下与液态水的最新数据以及在液态和团簇中的上述带隙激发研究进行了比较。在簇和液体中,对于带隙以下和以上的激发,都获得了大约200 fs和1-2 ps的相似弛豫时间。弛豫时间与生成过程的独立性表明,这些时间受溶剂响应的支配,这比各种溶剂化电子形成过程要慢得多。垂直电子结合能和半最大电子结合能的时间演化分析表明,溶剂化时间与结合能有关。
更新日期:2020-10-02
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