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Can We See the Energy Densities? II. Insights from Linear-Response Time-Dependent Density Functional Theory Calculations

preprint
submitted on 23.08.2020 and posted on 24.08.2020 by Zheng Pei, junjie yang, Jingheng Deng, Yuezhi Mao, Qin Wu, Zhibo Yang, bin wang, Christine M. Aikens, Wanzhen Liang, Yihan Shao
Inspired by the analysis of Kohn-Sham energy densities by Nakai et al, we extended the energy density analysis to linear-response time-dependent density functional theory (LR-TDDFT) calculations. Using ethylene-tetrafluoroethylene and oxyluciferin–water complexes as examples, distinctive distribution patterns were demonstrated for the excitation energy densities of local excitations (within a molecular fragment) and charge-transfer excitations (between molecular fragments). It also provided a simple way to compute the effective energy of both hot carriers (particle and hole) from charge-transfer excitations via an integration of the excitation energy density over the donor
and acceptor grid points.

History

Email Address of Submitting Author

yihan.shao@ou.edu

Institution

University of Oklahoma

Country

United States

ORCID For Submitting Author

0000-0001-9337-341X

Declaration of Conflict of Interest

None

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