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Inside Back Cover: Optimizing Optoelectronic Properties of Pyrimidine‐Based TADF Emitters by Changing the Substituent for Organic Light‐Emitting Diodes with External Quantum Efficiency Close to 25 % and Slow Efficiency Roll‐Off (Chem. Eur. J. 31/2016)
Author(s) -
Wu Kailong,
Zhang Tao,
Zhan Lisi,
Zhong Cheng,
Gong Shaolong,
Jiang Nan,
Lu ZhengHong,
Yang Chuluo
Publication year - 2016
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201602705
Subject(s) - intersystem crossing , oled , phenoxazine , quantum efficiency , optoelectronics , dopant , fluorescence , diode , materials science , exciton , photochemistry , chemistry , doping , physics , optics , nanotechnology , atomic physics , phenothiazine , medicine , layer (electronics) , singlet state , pharmacology , excited state , quantum mechanics
Butterfly‐shaped green‐emissive fluorescence emitters on the basis of pyrimidine/phenoxazine hybrids have been developed and utilized as dopants in high‐efficiency organic light‐emitting diodes. The thermally activated delayed fluorescence (TADF) feature of these emitters makes the recruitment of transition‐forbidden triplet excitons feasible through the reverse intersystem‐crossing process of T 1 → S 1 . More information can be found in the Full Paper by S. Gong, J. Jiang, C. Yang et al. on page 10860.