title: Efficient electroluminescence from a new terbium complex.
abstract: Although lanthanide complexes have distinct advantages for use as light-emitting materials, such as sharp emission bands and 100% quantum efficiency theoretically, their performance was far below what is expected. A new terbium complex was designed and synthesized. Devices using it as an emitter present satisfactory performance, with the highest brightness of 12 000 cd/m2 and power efficiency of 11.3 lm/W, which is nearly 1 order of magnitude higher than what was reported previously. Comparison with analogous complexes indicated that this result originated from the terbium complex's well-balanced charge-transport properties.
authors.affiliation: State Key Laboratory of Rare Earth Materials Chemistry and Applications, Peking University, Beijing, 100871, P. R. China.
authors.forename: Hao
authors.initials: H
authors.lastname: Xin
authors.forename: Fu You
authors.initials: FY
authors.lastname: Li
authors.forename: Mei
authors.initials: M
authors.lastname: Shi
authors.forename: Zu Qiang
authors.initials: ZQ
authors.lastname: Bian
authors.forename: Chun Hui
authors.initials: CH
authors.lastname: Huang