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6‐1: Distinguished Paper and Invited Paper: Design Strategies for Materials Showing Thermally Activated Delayed Fluorescence and Beyond: Towards the Fourth‐generation OLED Mechanism
Author(s) -
Yersin Hartmut,
Mataranga-Popa Larisa,
Li Shu-Wei,
Czerwieniec Rafal
Publication year - 2018
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.12488
Subject(s) - common emitter , oled , singlet state , range (aeronautics) , fluorescence , mechanism (biology) , exciton , optoelectronics , materials science , thermal , nanotechnology , optics , physics , atomic physics , condensed matter physics , excited state , thermodynamics , quantum mechanics , layer (electronics) , composite material
Design strategies for TADF molecules are discussed and a new emitter concept based on an almost “zero‐energy‐gap” is developed. Thermal activation is not substantial. Applied in an OLED, all singlet and triplet excitons are harvested directly in the lowest singlet state without time‐delaying TADF. This landmarking mechanism, being beyond TADF, leads to emission decay times in the sub‐µs range.