Highly efficient white light-emitting diodes with a bi-component emitting layer based on blue and yellow thermally activated delayed fluorescence emitters. Issue 12 (14th March 2018)

• Record Type: Journal Article
• Authors: Chen, Yongzhen; Li, Shengyong; Hu, Taiping; Wei, Xiaofang; Li, Zhiyi; Liu, Yanwei; Liu, Jianjun; Wang, Ruifang; Yi, Yuanping; Zhao, Cuihua; Wang, Ying; Wang, Pengfei
• Is Part Of: Journal of materials chemistry. Volume 6:Issue 12(2018)
• Page Start: 2951
• Page End: 2956
• Publication Date: 2018-03-14
• Subjects: Materials -- Periodicals; Chemistry, Analytic -- Periodicals; Optical materials -- Research -- Periodicals; Electronics -- Materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c8tc00594j
• Languages: English
• ISSNs: 2050-7526

Abstract

Abstract : A white LED with a bi-component light emitting layer is reported providing white light emission with a CIE of (0.38, 0.40), a CRI of 71, and a maximum EQE of 12.5%. These are among the best for bi-component based devices. Abstract : Herein, highly efficient white light-emitting diodes with a bi-component light emitting layer of the blue TADF emitter 2′-(dimesitylboranyl)- N, N -diphenyl-[1, 1′-biphenyl]-2-amine ( o, o ′-NPh2 ) and the yellow TADF emitter 4-phenyl-4′-carbazole-9- H -thioxanthen-9-one-10, 10-dioxide (TXO-PhCz4) is reported, providing white light emission with a CIE of (0.38, 0.40), a high CRI of 71, and a maximum EQE of 12.5%, which is among the best of WOLEDs with a bi-component emitting layer.