Cyclometalated platinum(II) complexes with acyclic diaminocarbene ligands for OLED application.

Autor: Katkova SA; St Petersburg University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034, Russian Federation. sergey.tunik@spbu.ru., Kozina DO; St Petersburg University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034, Russian Federation. sergey.tunik@spbu.ru., Kisel KS; St Petersburg University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034, Russian Federation. sergey.tunik@spbu.ru., Sandzhieva MA; School of Physics and Engineering, ITMO University, Lomonosova 9, 197101, St. Petersburg, Russian Federation., Tarvanen DA; School of Physics and Engineering, ITMO University, Lomonosova 9, 197101, St. Petersburg, Russian Federation., Makarov SV; School of Physics and Engineering, ITMO University, Lomonosova 9, 197101, St. Petersburg, Russian Federation.; Harbin Engineering University, Harbin 150001, Heilongjiang, China.; Qingdao Innovation and Development Center of Harbin Engineering University, Qingdao 266000, Shandong, China., Porsev VV; St Petersburg University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034, Russian Federation. sergey.tunik@spbu.ru., Tunik SP; St Petersburg University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034, Russian Federation. sergey.tunik@spbu.ru., Kinzhalov MA; St Petersburg University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034, Russian Federation. sergey.tunik@spbu.ru.; Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, 634050 Tomsk, Russian Federation.
Jazyk: angličtina
Zdroj: Dalton transactions (Cambridge, England : 2003) [Dalton Trans] 2023 Apr 04; Vol. 52 (14), pp. 4595-4605. Date of Electronic Publication: 2023 Apr 04.
DOI: 10.1039/d3dt00080j
Abstrakt: A novel series of cyclometalated platinum(II) complexes bearing acyclic diaminocarbene (ADC) ancillary ligands were designed and prepared. Their photophysical properties were systematically studied through experimental and theoretical investigations. All complexes exhibit green phosphorescence with a quantum efficiency of up to 45% in 2 wt% doped PMMA film at room temperature. The complexes are used as light-emitting dopants for organic light-emitting diode (OLED) fabrication. The devices displayed a green emission with a maximum current efficiency of 2.9 cd A -1 and a luminance of 2700 cd m -2 . These results show that these cyclometalated platinum(II) complexes can be used as efficient green emitting components of OLED devices.
Databáze: MEDLINE