P‐172: Geometry Control and Chemical Bond Stabilization of Thermally Activated Delayed Fluorescent Emitter to Get Extended Lifetime in TADF OLEDs | Zendy

Lee Ho Jung | Zendy; Han Si Hyun | Zendy; Hong Wan Pyo | Zendy; Song Ok-Keun | Zendy; Lee Jun Yeob | Zendy

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P‐172: Geometry Control and Chemical Bond Stabilization of Thermally Activated Delayed Fluorescent Emitter to Get Extended Lifetime in TADF OLEDs

Author(s) -

Lee Ho Jung,

Han Si Hyun,

Hong Wan Pyo,

Song Ok-Keun,

Lee Jun Yeob

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.12412

Subject(s) - common emitter , oled , materials science , fluorescence , dihedral angle , optoelectronics , electroluminescence , molecule , optics , nanotechnology , chemistry , physics , hydrogen bond , organic chemistry , layer (electronics)

A material was synthesized as a thermally activated delayed fluorescent (TADF) emitter to alleviate the geometrical hindrance between the donors and to improve the lifetime of the TADF devices. GTD (green TADF dopant) is a green TADF emitter which showed similar peak wavelengths to a common green TADF emitter, but exhibited three times longer device lifetime than a common TADF emitter. The dihedral angle between donor and central core of GTD was small compared to that of a common TADF emitter. And the improved bond dissociation energy of bond of GTD molecule affected the lifetime of TADF OLEDs.

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