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Electric Field Induce Blue Shift and Intensity Enhancement in 2D Exciplex Organic Light Emitting Diodes; Controlling Electron–Hole Separation
Author(s) -
Al Attar Hameed A.,
Monkman Andy P.
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.201600965
Subject(s) - oled , excimer , materials science , excited state , optoelectronics , electric field , electron , field (mathematics) , diode , acceptor , engineering physics , fluorescence , nanotechnology , optics , atomic physics , physics , condensed matter physics , mathematics , layer (electronics) , quantum mechanics , pure mathematics
A simple but novel method is designed to study the characteristics of the exciplex state pinned at a donor–acceptor abrupt interface and the effect an external electric field has on these excited states. The reverse Onsager process, where the field induces blue‐shifted emission and increases the efficiency of the exciplex emission as the e–h separation reduces, is discussed.