Two cyclometallated platinum(ii) complexes, N^C^N-5-fluoro-1,3-di(2- pyridyl)benzene platinum(ii) chloride, FPtCl, and N^C^N-5-methyl-1,3-di(2- pyridyl)benzene platinum(ii) isothiocyanate, MePtNCS, have been synthesized and characterized. Both complexes are highly efficient phosphorescent green emitters which can also display excimer emission in the red region. They have been studied as triplet emitters in solution-processed, multilayer organic light-emitting diodes (OLEDs), together with the known complex of 5-methyl-1,3-di(2-pyridyl)benzene, MePtCl, for comparison. The trend in efficiencies of the OLEDs prepared correlates with the charge-trapping properties of the complexes. The most efficiently emitting complex, FPtCl, was used as the dopant in a solution-processed white OLED, employing monomer and excimer emission.
Cyclometallated platinum(ii) complexes of 1,3-di(2-pyridyl)benzenes for solution-processable WOLEDs exploiting monomer and excimer phosphorescence / W. Mroz, C. Botta, U. Giovanella, E. Rossi, A. Colombo, C. Dragonetti, D. Roberto, R. Ugo, A. Valore, J.A.G. Williams. - In: JOURNAL OF MATERIALS CHEMISTRY. - ISSN 0959-9428. - 21:24(2011), pp. 8653-8661.
|Titolo:||Cyclometallated platinum(ii) complexes of 1,3-di(2-pyridyl)benzenes for solution-processable WOLEDs exploiting monomer and excimer phosphorescence|
|Parole Chiave:||light-emitting-diodes; electroluminescent devices; quantum efficiency; hole transport; emission; polymer; luminescence; photophysics; ligands; color|
|Settore Scientifico Disciplinare:||Settore CHIM/03 - Chimica Generale e Inorganica|
|Data di pubblicazione:||2011|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1039/c1jm10193e|
|Appare nelle tipologie:||01 - Articolo su periodico|