Theoretical studies on thermally activated delayed fluorescence mechanism of a series of organic light-emitting diodes emitters comprising 2,7-diphenylamino-9,9-dimethylacridine as electron donor

© 2018 Wiley Periodicals, Inc.

Bibliographische Detailangaben
Veröffentlicht in:Journal of computational chemistry. - 1984. - 39(2018), 31 vom: 05. Dez., Seite 2601-2606
1. Verfasser: Feng, Songyan (VerfasserIn)
Weitere Verfasser: Wen, Keke, Si, Yubing, Guo, Xugeng, Zhang, Jinglai
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Journal of computational chemistry
Schlagworte:Journal Article Marcus rate expression green emission reverse intersystem crossing theoretical design thermally activated delayed fluorescence
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520 |a According to one experimentally reported thermally activated delayed fluorescence (TADF) emitter (AcDPA-2TP), two new molecules (AcDPA-2PP and AcDPA-TPP) have been designed theoretically to probe into the effect of different acceptor strengths on their TADF mechanisms. In this work, the rates of reverse intersystem crossing (kRISC ) of the three targeted molecules were calculated by the semiclassical Marcus rate expression. The present results demonstrate that the kRISC rate of AcDPA-2PP is estimated to be 5.56 × 106 s-1 , about twice larger than that of AcDPA-2TP (2.63 × 106 s-1 ), and especially AcDPA-TPP is found to exhibit the largest kRISC value (6.97 × 106 s-1 ) among the three molecules. Considering that AcDPA-2TP has been observed to be an efficient TADF emitter, our newly designed two molecules AcDPA-2PP and AcDPA-TPP are also expected to be potential TADF materials. © 2018 Wiley Periodicals, Inc 
650 4 |a Journal Article 
650 4 |a Marcus rate expression 
650 4 |a green emission 
650 4 |a reverse intersystem crossing 
650 4 |a theoretical design 
650 4 |a thermally activated delayed fluorescence 
700 1 |a Wen, Keke  |e verfasserin  |4 aut 
700 1 |a Si, Yubing  |e verfasserin  |4 aut 
700 1 |a Guo, Xugeng  |e verfasserin  |4 aut 
700 1 |a Zhang, Jinglai  |e verfasserin  |4 aut 
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