2,5-Difluorenyl-Substituted Siloles for the Fabrication of High-Performance Yellow Organic Light-Emitting Diodes (pages 1931–1939)
Bin Chen, Yibin Jiang, Long Chen, Han Nie, Bairong He, Dr. Ping Lu, Herman H. Y. Sung, Prof. Ian D. Williams, Prof. Hoi Sing Kwok, Prof. Anjun Qin, Prof. Zujin Zhao and Prof. Ben Zhong Tang
Version of Record online: 8 JAN 2014 | DOI: 10.1002/chem.201303259
Incorporating fluorenyl substituents into the 2,5-positions of silole rings generates efficient solid-state luminogenic materials. The electroluminescent devices made by using the substituted rings as host emitters show yellow light, with high luminance, current efficiency, power efficiency, and external quantum efficiency of up to 44 100 cd m−2, 18.3 cd A−1, 15.7 lm W−1, and 5.5 %, respectively (see figure).