Cyclometalated platinum complexes with luminescent quantum yields approaching 100%

Eric Turner, Nathan Bakken, Jian Li

Research output: Contribution to journalArticle

94 Citations (Scopus)

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 languageEnglish (US)
Pages (from-to)7344-7351
Number of pages8
JournalInorganic Chemistry
Volume52
Issue number13
DOIs
StatePublished - Jul 1 2013

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Quantum yield
Platinum
Quantum efficiency
Methyl Green
quantum efficiency
platinum
pyridines
Ligands
life (durability)
ligands
Coordination Complexes
Polymethyl Methacrylate
polymethyl methacrylate
Conversion efficiency
Photons
Thin films
Electrons
photons
thin films
metals

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Physical and Theoretical Chemistry

Cite this

Cyclometalated platinum complexes with luminescent quantum yields approaching 100%. / Turner, Eric; Bakken, Nathan; Li, Jian.

In: Inorganic Chemistry, Vol. 52, No. 13, 01.07.2013, p. 7344-7351.

Research output: Contribution to journalArticle

Turner, Eric ; Bakken, Nathan ; Li, Jian. / Cyclometalated platinum complexes with luminescent quantum yields approaching 100%. In: Inorganic Chemistry. 2013 ; Vol. 52, No. 13. pp. 7344-7351.
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