Abstract
We report on the development of highly efficient organic light-emitting diodes (OLEDs) utilized by balancing the energy transfer between multiple dopants, that is, multiple emissions from the multiple dopants were realized by balanced distributed energy transfer. From the cosensitizing fluorescent OLEDs, the peak external quantum efficiency (EQE) of 4.8% at 130 cd/ m2 is demonstrated, which realized theoretical limits of ∼5.0% and means that nearly 100% of the singlet excitons are radiative. Also, the optimized device accompanying thickness-modulated electron transport layer for the enhanced light outcoupling demonstrated the highly improved peak EQE and current efficiency of 6.7%, and 23.4 cd/A.
| Original language | English |
|---|---|
| Article number | 143305 |
| Journal | Applied Physics Letters |
| Volume | 95 |
| Issue number | 14 |
| DOIs | |
| Publication status | Published - 2009 Oct 19 |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
Cite this
Highly efficient tris(8-hydroxyquinoline) aluminum-based organic light-emitting diodes utilized by balanced energy transfer with cosensitizing fluorescent dyes. / Park, Young Wook; Kim, Young Min; Choi, Jin Hwan; Park, Tae Hyun; Huh, Jin Woo; Kim, Hong Suk; Cho, Min Ju; Choi, Dong Hoon; Ju, Byeong Kwon.
In: Applied Physics Letters, Vol. 95, No. 14, 143305, 19.10.2009.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Highly efficient tris(8-hydroxyquinoline) aluminum-based organic light-emitting diodes utilized by balanced energy transfer with cosensitizing fluorescent dyes
AU - Park, Young Wook
AU - Kim, Young Min
AU - Choi, Jin Hwan
AU - Park, Tae Hyun
AU - Huh, Jin Woo
AU - Kim, Hong Suk
AU - Cho, Min Ju
AU - Choi, Dong Hoon
AU - Ju, Byeong Kwon
PY - 2009/10/19
Y1 - 2009/10/19
N2 - We report on the development of highly efficient organic light-emitting diodes (OLEDs) utilized by balancing the energy transfer between multiple dopants, that is, multiple emissions from the multiple dopants were realized by balanced distributed energy transfer. From the cosensitizing fluorescent OLEDs, the peak external quantum efficiency (EQE) of 4.8% at 130 cd/ m2 is demonstrated, which realized theoretical limits of ∼5.0% and means that nearly 100% of the singlet excitons are radiative. Also, the optimized device accompanying thickness-modulated electron transport layer for the enhanced light outcoupling demonstrated the highly improved peak EQE and current efficiency of 6.7%, and 23.4 cd/A.
AB - We report on the development of highly efficient organic light-emitting diodes (OLEDs) utilized by balancing the energy transfer between multiple dopants, that is, multiple emissions from the multiple dopants were realized by balanced distributed energy transfer. From the cosensitizing fluorescent OLEDs, the peak external quantum efficiency (EQE) of 4.8% at 130 cd/ m2 is demonstrated, which realized theoretical limits of ∼5.0% and means that nearly 100% of the singlet excitons are radiative. Also, the optimized device accompanying thickness-modulated electron transport layer for the enhanced light outcoupling demonstrated the highly improved peak EQE and current efficiency of 6.7%, and 23.4 cd/A.
UR - http://www.scopus.com/inward/record.url?scp=70349902330&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70349902330&partnerID=8YFLogxK
U2 - 10.1063/1.3243689
DO - 10.1063/1.3243689
M3 - Article
VL - 95
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 14
M1 - 143305
ER -