Color-tuning Pt(ii) complexes for natural-light electrophosphorescence. Issue 4 (4th January 2022)

• Record Type: Journal Article
• Authors: Wu, D.; Qin, K.; Gao, X.; Cheng, S.; Wu, A.; Sha, C.; Ma, H.; Sun, Z.; Zhang, C.; Hang, X.-C.
• Is Part Of: Journal of materials chemistry. Volume 10:Issue 4(2022)
• Page Start: 1365
• Page End: 1370
• Publication Date: 2022-01-04
• Subjects: Materials -- Periodicals; Chemistry, Analytic -- Periodicals; Optical materials -- Research -- Periodicals; Electronics -- Materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/d1tc04194k
• Languages: English
• ISSNs: 2050-7526

Abstract

Abstract : Efficient and durable OLEDs of cyan, greenish yellow, yellow and white colors were fabricated in simple structures with Pt–Cpy bonded complexes, giving state-of-the-art tuning the color of electroluminescence. Abstract : Two cyclometallated Pt(ii ) complexes with Pt–Cpy bonded tetradentate ligands, Pt(pzpy-czOpy) and Pt(pzpy-czcl), have been fully investigated, showing that a simple strategy that reduced torsion could properly direct towards broad spectrum emission. Details in the photo- and electro-luminescence reveal entirely different types of localized emissions for the two complexes as well as their color tunability in devices. Luminescence of the complex responds to the mode of photo- or electro-excitation, resulting in different radiative relaxation process and also their emission spectra. Efficient and durable broad-spectrum OLEDs of cyan, greenish yellow, yellow and white colors were fabricated with simple structures, giving state-of-the-art performance in tuning the emission for natural color electroluminescence.