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Title: Concave-hemisphere-patterned organic top-light emitting device

Abstract

A first device is provided. The first device includes an organic light emitting device, which further comprises a first electrode, a second electrode, and an organic emissive layer disposed between the first and second electrode. Preferably, the second electrode is more transparent than the first electrode. The organic emissive layer has a first portion shaped to form an indentation in the direction of the first electrode, and a second portion shaped to form a protrusion in the direction of the second electrode. The first device may include a plurality of organic light emitting devices. The indentation may have a shape that is formed from a partial sphere, a partial cylinder, a pyramid, or a pyramid with a mesa, among others. The protrusions may be formed between adjoining indentations or between an indentation and a surface parallel to the substrate.

Inventors:
; ;
Issue Date:
Research Org.:
The Regents of the University of Michigan, Ann Arbor, MI, USA
Sponsoring Org.:
USDOE
OSTI Identifier:
1117843
Patent Number(s):
8633497
Application Number:
12/731,249
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:  
FG02-08ER85082
Resource Type:
Patent
Resource Relation:
Patent File Date: 2010 Mar 25
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Forrest, Stephen R, Slootsky, Michael, and Lunt, Richard. Concave-hemisphere-patterned organic top-light emitting device. United States: N. p., 2014. Web.
Forrest, Stephen R, Slootsky, Michael, & Lunt, Richard. Concave-hemisphere-patterned organic top-light emitting device. United States.
Forrest, Stephen R, Slootsky, Michael, and Lunt, Richard. Tue . "Concave-hemisphere-patterned organic top-light emitting device". United States. https://www.osti.gov/servlets/purl/1117843.
@article{osti_1117843,
title = {Concave-hemisphere-patterned organic top-light emitting device},
author = {Forrest, Stephen R and Slootsky, Michael and Lunt, Richard},
abstractNote = {A first device is provided. The first device includes an organic light emitting device, which further comprises a first electrode, a second electrode, and an organic emissive layer disposed between the first and second electrode. Preferably, the second electrode is more transparent than the first electrode. The organic emissive layer has a first portion shaped to form an indentation in the direction of the first electrode, and a second portion shaped to form a protrusion in the direction of the second electrode. The first device may include a plurality of organic light emitting devices. The indentation may have a shape that is formed from a partial sphere, a partial cylinder, a pyramid, or a pyramid with a mesa, among others. The protrusions may be formed between adjoining indentations or between an indentation and a surface parallel to the substrate.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {1}
}

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Works referenced in this record:

Highly efficient phosphorescent emission from organic electroluminescent devices
journal, September 1998


Very high-efficiency green organic light-emitting devices based on electrophosphorescence
journal, July 1999


Organic light-emitting diodes with photonic crystals on glass substrate fabricated by nanoimprint lithography
journal, March 2007


Large-scale patterning of indium tin oxide electrodes for guided mode extraction from organic light-emitting diodes
journal, November 2008


Role of the dielectric capping layer in enhancement of light outcoupling for semitransparent metal-cathode organic light-emitting devices
journal, July 2006