Highly efficient exciplex organic light-emitting diodes incorporating a heptazine derivative as an electron acceptor.
Highly efficient exciplex systems incorporating a heptazine derivative () as an electron acceptor and 1,3-di(9H-carbazol-9-yl)benzene () as an electron donor are developed. An organic light-emitting diode containing 8 wt% : as an emitting layer exhibits a maximum external quantum efficiency of 11.3%.
Department of Chemistry and Biochemistry, and Center for Organic Photonics and Electronics Research (OPERA), Kyushu University, 744 Motooka, Nishi, Fukuoka 819-0395, Japan. adachi@cstf.kyushu-u.ac.jp.
Jie
J
Li
Hiroko
H
Nomura
Hiroshi
H
Miyazaki
Chihaya
C
Adachi