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Title: Organic light emitting device having multiple separate emissive layers

Abstract

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%.

Inventors:
 [1]
  1. Ann Arbor, MI
Issue Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1039197
Patent Number(s):
8143613
Application Number:
11/945,910
Assignee:
The Regents of the University of Michigan (Ann Arbor, MI)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
DOE Contract Number:  
FC26-04NT42272
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Forrest, Stephen R. Organic light emitting device having multiple separate emissive layers. United States: N. p., 2012. Web.
Forrest, Stephen R. Organic light emitting device having multiple separate emissive layers. United States.
Forrest, Stephen R. Tue . "Organic light emitting device having multiple separate emissive layers". United States. https://www.osti.gov/servlets/purl/1039197.
@article{osti_1039197,
title = {Organic light emitting device having multiple separate emissive layers},
author = {Forrest, Stephen R},
abstractNote = {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%.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {3}
}

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Works referenced in this record:

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