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P‐168: High Efficiency (EQE>30%) TADF‐OLED with Lightly‐doped Emitter (0.5%) by using TADF‐Host
Author(s) -
Ding Wen-Cheng,
Huang Jau-Jiun,
Chen Chia-Hsun,
Chiu Tien-Lung,
Lin Chi-Feng,
Leung Man-Kit,
Lee Jiun-Haw
Publication year - 2020
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.14312
Subject(s) - oled , common emitter , optoelectronics , doping , materials science , dopant , diode , energy transfer , host (biology) , quantum efficiency , exciton , chemistry , nanotechnology , physics , ecology , layer (electronics) , quantum mechanics , molecular physics , biology
High efficiency (EQE=30.15%) organic light emitting diode (OLED) was demonstrated by lightly doping the thermally activated delayed fluorescence (TADF) emitter (0.5%) into the TADF host, resulting from: (1) efficient energy transfer from host to dopant, (2) long exciton diffusion length in host, and (3) rare concentration quenching due to lightly‐doped condition.