(C(wedge)N(wedge)N)Pt(C identical to C)nR] (HC(wedge)N(wedge)N = 6-aryl-2,2'-bipyridine,n = 1-4, R = aryl,SiMe3) as a new class of light-emitting materials and their applications in electrophosphorescent devices |
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| Authors: | Lu Wei Mi Bao-Xiu Chan Michael C W Hui Zheng Zhu Nianyong Lee Shuit-Tong Che Chi-Ming |
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| Institution: | Department of Chemistry, HKU-CAS Joint Laboratory on New Materials, University of Hong Kong, Pokfulam Road, Hong Kong SAR, China. |
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| Abstract: | Tridentate cyclometalated platinum(II) complexes bearing sigma-alkynyl ligands exhibit tunable photoluminescence and enhanced stability during vacuum deposition; OLEDs based on these materials display orange to red electrophosphorescence with low turn-on voltages (approximately 4 V), maximum luminance approaching 10,000 cd m-2 and efficiency up to 4.2 cd A-1. |
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