Stable blue phosphorescent organic light emitting devices

Forrest, Stephen R.; Thompson, Mark; Giebink, Noel

Title: Stable blue phosphorescent organic light emitting devices

Patent · Tue Aug 26 00:00:00 EDT 2014

OSTI ID:1151770

Forrest, Stephen R.; Thompson, Mark; Giebink, Noel

Novel combination of materials and device architectures for organic light emitting devices is provided. An organic light emitting device, is provided, having an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer includes a host and a phosphorescent emissive dopant having a peak emissive wavelength less than 500 nm, and a radiative phosphorescent lifetime less than 1 microsecond. Preferably, the phosphorescent emissive dopant includes a ligand having a carbazole group.

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Research Organization:: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: FC26-04NT42272

Assignee:: The Regents of the University of Michigan (Ann Arbor, MI); University of Southern California (Los Angeles, CA)

Patent Number(s):: 8,815,411

Application Number:: 12/257,638

OSTI ID:: 1151770

Country of Publication:: United States

Language:: English

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