Energy splitting between triplet and singlet exciplex states determined with E-type delayed fluorescence
نویسندگان
چکیده
Article history: Received 29 April 2008 In final form 26 May 2008 Available online 17 June 2008 0009-2614/$ see front matter 2008 Elsevier B.V. A doi:10.1016/j.cplett.2008.05.086 * Corresponding author. Fax: +49 551 201 1501. E-mail address: [email protected] (H. Staerk). In the redox system with N,N-diethylaniline as electron donor and 1,4-dicyanobenzene as electron acceptor the singlet and triplet exciplex states in the nonpolar solvent methylcyclohexane are almost degenerate. The lowest excited state is the triplet exciplex state from which the singlet exciplex state is populated in a fast endothermic reaction. The energy splitting has been determined experimentally as DE 0.1 eV via E-type delayed fluorescence. 2008 Elsevier B.V. All rights reserved.
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تاریخ انتشار 2008