Publication: Use of effective fragment potentials for simulation of excited states in an inhomogeneous environment
Дата
2020
Авторы
Dubinets, N. O.
Freidzon, A. Y.
Bagaturyants, A. A.
Фрейдзон, Александра Яковлевна
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Аннотация
© 2019 Wiley Periodicals, Inc.Singlet and triplet spectra of phosphorescent organic light-emitting diode dopants such as bis(2-methyldibenzo[f,h]quinoxaline)(acetylacetonate)iridium(III) in inhomogeneous amorphous hosts are simulated by time-dependent density functional theory (TDDFT) using molecular dynamics and effective fragment potentials (EFPs). The EFPs of the host molecules N,N′-di(1-naphthyl)-N,N′-diphenyl-(1,1′-biphenyl)-4,4′-diamine and 4,4′-bis(N-carbazolyl)-1,1′-biphenyl are constructed from small fragments. The procedure for breaking large molecules into fragments and constructing an EFP is presented. It is demonstrated that polarizable inhomogeneous environment affects the position, intensity, and width of the spectral bands and, therefore, should be taken into account in accurate simulations of spectral bands.
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Dubinets, N. O. Use of effective fragment potentials for simulation of excited states in an inhomogeneous environment / Dubinets, N.O., Freidzon, A.Y., Bagaturyants, A.A. // International Journal of Quantum Chemistry. - 2020. - 10.1002/qua.26071
URI
https://www.doi.org/10.1002/qua.26071
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https://www.scopus.com/record/display.uri?eid=2-s2.0-85074286089&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000527415400008
https://openrepository.mephi.ru/handle/123456789/20042