Integrating molecular rigidity and chirality into thermally activated delayed fluorescence emitters for highly efficient sky-blue and orange circularly polarized electroluminescence. Issue 2 (19th November 2020)

• Record Type: Journal Article
• Authors: Ni, Fan; Huang, Chih-Wei; Tang, Yukun; Chen, Zhanxiang; Wu, Yaxun; Xia, Shengpeng; Cao, Xiaosong; Hsu, Jung-Hsien; Lee, Wei-Kai; Zheng, Kailu; Huang, Zhongyan; Wu, Chung-Chih; Yang, Chuluo
• Is Part Of: Materials horizons. Volume 8:Issue 2(2021)
• Page Start: 547
• Page End: 555
• Publication Date: 2020-11-19
• Subjects: Materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/d0mh01521k
• Languages: English
• ISSNs: 2051-6347

Abstract

Abstract : Two pairs of D*–A type blue and orange CP-TADF emitters based on a rigid point chiral donor reveal high molecular rigidity, excellent PLQYs, and intense luminescence dissymmetry factors, which jointly enable highly efficient CP-OLEDs. Abstract : By integrating high molecular rigidity and stable chirality, two pairs of D*–A type circularly polarized thermally activated delayed fluorescence (CP-TADF) emitters with an almost absolute quasi-equatorial conformer geometry and excellent photoluminescence quantum efficiencies (PLQYs) are developed, achieving state-of-the-art electroluminescence performance among blue and orange circularly polarized organic light-emitting diodes (CP-OLEDs).