Highly Efficient Red-Emitting Bis-Cyclometalated Iridium Complexes

• Published in: Journal of the American Chemical Society Vol. 140; no. 32; pp. 10198 - 10207
• Main Authors: Lai, Po-Ni, Brysacz, Caroline H, Alam, Md Kamrul, Ayoub, Nicholas A, Gray, Thomas G, Bao, Jiming, Teets, Thomas S
• Format: Journal Article
• Language: English
• Published: WASHINGTON American Chemical Society 15.08.2018; Amer Chemical Soc; American Chemical Society (ACS)
• Subjects: Chemistry; Chemistry, Multidisciplinary; iridium; ligands; light emitting diodes; phosphorescence; photoluminescence; Physical Sciences; Science & Technology; IR(III) COMPLEXES; BETA-KETOIMINATE; PHOSPHORESCENT; TEMPERATURE-DEPENDENCE; QUANTUM YIELDS; OLED APPLICATIONS; ORGANOMETALLIC COMPLEXES; TRIPLET EMITTERS; DEVICES; EXCITED-STATES

Bis-cyclometalated iridium complexes with enhanced phosphorescence quantum yields in the red region of the visible spectrum are described. Here, we demonstrate that incorporating strongly π-donating, nitrogen-containing β-ketoiminate (acNac), β-diketiminate (NacNac), and N,N′-diisopropylbenzamidinat...