Abstract
A new class of cyclometalated tetradentate platinum complexes of the type Pt[N/\C-O-LL′] was synthesized and characterized. N /\C is a cyclometalating ligand such as phenyl-pyrazole (ppz), phenyl-methylimidazole (pmi), or phenyl-pyridine (ppy), and LL′ is an ancillary ligand such as phenoxyl-pyridine (popy). The complexes in this series are highly luminescent, emitting blue to green light in solution with quantum efficiencies ranging from 0.39 to 0.64 and luminescent lifetimes from 2 to 9 μs. When doped in a poly(methyl methacrylate) (PMMA) thin film, measured quantum efficiencies increase to 0.81-0.97 with lifetimes ranging from 4.5-10.4 μs. One notable example, the metal complex PtOO3, emits green light with a luminescent quantum efficiency approaching 100% and achieves approximately 100% electron-to-photon conversion efficiency in device settings.
Original language | English (US) |
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Pages (from-to) | 7344-7351 |
Number of pages | 8 |
Journal | Inorganic chemistry |
Volume | 52 |
Issue number | 13 |
DOIs | |
State | Published - Jul 1 2013 |
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Inorganic Chemistry
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CCDC 967039: Experimental Crystal Structure Determination
Turner, E. (Creator), Bakken, N. (Creator) & Li, J. (Creator), The Cambridge Structural Database, 2013
DOI: 10.5517/cc11g8tl, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/cc11g8tl&sid=DataCite
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