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Tunable Excitonic Processes at Organic Heterojunctions
Author(s) -
He ShouJie,
Wang DengKe,
Jiang Nan,
Tse John S.,
Lu ZhengHong
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201504287
Subject(s) - heterojunction , auger effect , auger , materials science , recombination , excimer , spontaneous emission , optoelectronics , charge (physics) , exciton , electron , atomic physics , condensed matter physics , physics , optics , chemistry , fluorescence , laser , biochemistry , quantum mechanics , gene
Nonradiative Auger recombination and radiative exciplex emissions at organic–organic heterojunctions are found to be mediated by the nature of the majority charge carrier. The Auger recombination is dominant when the heterojunction is electron rich, the exciplex emission is dominant when the heterojunction is hole rich, and both Auger recombination and exciplex emission are present when the heterojunction is charge balanced.