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Title: Extended OLED operational lifetime through phosphorescent dopant profile management

Abstract

This disclosure relates, at least in part, an organic light emitting device, which in some embodiments comprises an anode; a cathode; a first emissive layer disposed between the anode and the cathode, the first emissive layer comprising an electron transporting compound and a phosphorescent emissive dopant compound; and wherein the phosphorescent emissive dopant compound has a concentration gradient, in the emissive layer, which varies from the cathode side of the first emissive layer to the anode side of the emissive layer.

Inventors:
;
Publication Date:
Research Org.:
The Regents of the University of Michigan, Ann Arbor, MI (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1360767
Patent Number(s):
9,666,822
Application Number:
14/537,414
Assignee:
The Regents of the University of Michigan EFRC
DOE Contract Number:
SC0001013
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Nov 10
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Forrest, Stephen R., and Zhang, Yifan. Extended OLED operational lifetime through phosphorescent dopant profile management. United States: N. p., 2017. Web.
Forrest, Stephen R., & Zhang, Yifan. Extended OLED operational lifetime through phosphorescent dopant profile management. United States.
Forrest, Stephen R., and Zhang, Yifan. Tue . "Extended OLED operational lifetime through phosphorescent dopant profile management". United States. doi:. https://www.osti.gov/servlets/purl/1360767.
@article{osti_1360767,
title = {Extended OLED operational lifetime through phosphorescent dopant profile management},
author = {Forrest, Stephen R. and Zhang, Yifan},
abstractNote = {This disclosure relates, at least in part, an organic light emitting device, which in some embodiments comprises an anode; a cathode; a first emissive layer disposed between the anode and the cathode, the first emissive layer comprising an electron transporting compound and a phosphorescent emissive dopant compound; and wherein the phosphorescent emissive dopant compound has a concentration gradient, in the emissive layer, which varies from the cathode side of the first emissive layer to the anode side of the emissive layer.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 30 00:00:00 EDT 2017},
month = {Tue May 30 00:00:00 EDT 2017}
}

Patent:

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