Cebrián C, Mauro M, Kourkoulos D, Mercandelli P, Hertel D, Meerholz K, Strassert CA, De Cola L. Luminescent neutral platinum complexes bearing an asymmetric N(^) N(^) N ligand for high-performance solution-processed OLEDs.
ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013;
25:437-442. [PMID:
22972396 DOI:
10.1002/adma.201202123]
[Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2012] [Revised: 07/23/2012] [Indexed: 06/01/2023]
Abstract
The synthesis and full characterization of new platinum complexes bearing a bulky asymmetric dianionic tridentate ligand is reported. The hindrance of the ligand prevents detrimental intermolecular interactions yielding to highly emitting species in both crystalline state and thin-film. Such properties prompted their successful use in solution-processed OLEDs, showing remarkable external quantum efficiency up to 5.6%.
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