Organic light emitting device having multiple separate emissive layers

Forrest, Stephen R

Title: Organic light emitting device having multiple separate emissive layers

Patent · Tue Mar 27 00:00:00 EDT 2012

OSTI ID:1039197

Forrest, Stephen R ^[1]

Ann Arbor, MI

An organic light emitting device having multiple separate emissive layers is provided. Each emissive layer may define an exciton formation region, allowing exciton formation to occur across the entire emissive region. By aligning the energy levels of each emissive layer with the adjacent emissive layers, exciton formation in each layer may be improved. Devices incorporating multiple emissive layers with multiple exciton formation regions may exhibit improved performance, including internal quantum efficiencies of up to 100%.

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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)

Patent Number(s):: 8,143,613

Application Number:: 11/945,910

OSTI ID:: 1039197

Country of Publication:: United States

Language:: English

References (19)

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