title: X-shaped benzoylbenzophenone derivatives with crossed donors and acceptors for highly efficient thermally activated delayed fluorescence.
abstract: Thermally activated delayed fluorescence (TADF) materials based on benzoylbenzophenone, AcPmBPX and PxPmBPX, were designed and synthesized. Organic light-emitting diodes using these materials as emitters exhibited high external electroluminescence quantum efficiencies of up to 11%.
authors.affiliation: Department of Applied Chemistry and Center for Organic Photonics and Electronics Research (OPERA), Kyushu University, 744 Motooka, Nishi, Fukuoka 819-0395, Japan. yasuda@ifrc.kyushu-u.ac.jp adachi@cstf.kyushu-u.ac.jp.
authors.forename: Sae Youn
authors.initials: SY
authors.lastname: Lee
authors.forename: Takuma
authors.initials: T
authors.lastname: Yasuda
authors.forename: In Seob
authors.initials: IS
authors.lastname: Park
authors.forename: Chihaya
authors.initials: C
authors.lastname: Adachi