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Updated: Jul 13, 2026

Scale-up Chemical Synthesis of Thermally-activated Delayed Fluorescence Emitters Based on the Dibenzothiophene-S,S-Dioxide Core
Published on: October 24, 2017
Ambipolar diphenylamino end-capped oligofluorenylthiophenes as excellent electron-transporting emitters
Zhong Hui Li1, Man Shing Wong, Ye Tao
1Department of Chemistry and Centre for Advanced Luminescence Materials, Hong Kong Baptist University, Hong Kong SAR, China.
Abstract:
In addition to hole transport, diphenylamino-end-capped oligofluorenylthiophenes can exhibit efficient electron transport, in which the oligothiophene central core acts as an excellent electron-transporting moiety. The highly efficient undoped multilayer OLEDs using OF(2)TTP-NPh and OF(2)QTP-NPh as an electron-transporting emitter exhibited a maximum luminance of 19,800 and 11,800 cd m(-2) with a luminance efficiency up to 5.3 and 1.0 cd A(-1), respectively.
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