DOI: 10.1063/1.1388159. High-efficiency yellow double-doped organic light-emitting devices based on phosphor-sensitized fluorescence

High-efficiency yellow double-doped organic light-emitting devices based on phosphor-sensitized fluorescence

10.1063/1.1388159

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

We demonstrate high-efficiency yellow organic light-emitting devices (OLEDs) employing [2-methyl-6-[2,3,6,7-tetrahydro-1H,5H-benzo[ij]quinolizin-9-yl)ethenyl]-4H-pyran-4-ylidene] propane-dinitrile (DCM2) as a fluorescent lumophore, with a green electrophospho- rescent sensitizer, fac tris(2-phenylpyridine) iridium [Ir(ppy)3] co-doped into a 4,4′-N,N′dicarbazole-biphenyl host. The devices exhibit peak external fluorescent quantum and power efficiencies of 9%±1% (25 cd/A) and 17±2 lm/W at 0.01 mA/cm2, respectively. At 10 mA/cm2, the efficiencies are 4.1%±0.5% (11 cd/A) and 3.1±0.3 lm/W. We show that this exceptionally high performance for a fluorescent dye is due to the ∼100% efficient transfer of both singlet and triplet excited states in the doubly doped host to the fluorescent material using Ir(ppy)3 as a sensitizing agent. These results suggest that 100% internal quantum efficiency fluorescent OLEDs employing this sensitization process are within reach.

Bibliography

DâAndrade, B. W., Baldo, M. A., Adachi, C., Brooks, J., Thompson, M. E., & Forrest, S. R. (2001). High-efficiency yellow double-doped organic light-emitting devices based on phosphor-sensitized fluorescence. Applied Physics Letters, 79(7), 1045â1047.

Authors 6

Brian W. D’Andrade (first)
Marc A. Baldo (additional)
Chihaya Adachi (additional)
Jason Brooks (additional)
Mark E. Thompson (additional)
Stephen R. Forrest (additional)

References 14 Referenced 199

10.1063/1.98799 / Appl. Phys. Lett. (1987)
10.1103/PhysRevB.58.3730 / Phys. Rev. B (1998)
10.1038/25954 / Nature (London) (1998)
10.1063/1.124258 / Appl. Phys. Lett. (1999)
10.1063/1.1306639 / Appl. Phys. Lett. (2000)
10.1103/PhysRevB.60.14422 / Phys. Rev. B (1999)
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10.1038/35001541 / Nature (London) (2000)
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10.1063/1.343409 / J. Appl. Phys. (1989)
10.1063/1.371901 / J. Appl. Phys. (2000)
10.1063/1.123055 / Appl. Phys. Lett. (1999)
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10.1103/PhysRevB.62.10967 / Phys. Rev. B (2000)

Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 9:26 a.m.)
Deposited	1 year, 6 months ago (Feb. 3, 2024, 3:36 p.m.)
Indexed	1 month, 3 weeks ago (July 7, 2025, 4:44 a.m.)
Issued	24 years ago (Aug. 13, 2001)
Published	24 years ago (Aug. 13, 2001)
Published Print	24 years ago (Aug. 13, 2001)

Funders 0

None

BibTeX

@article{D_Andrade_2001, title={High-efficiency yellow double-doped organic light-emitting devices based on phosphor-sensitized fluorescence}, volume={79}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.1388159}, DOI={10.1063/1.1388159}, number={7}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={D’Andrade, Brian W. and Baldo, Marc A. and Adachi, Chihaya and Brooks, Jason and Thompson, Mark E. and Forrest, Stephen R.}, year={2001}, month=aug, pages={1045–1047} }

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