Nearly 100% internal phosphorescence efficiency in an organic light-emitting device
Тип публикации: Journal Article
Дата публикации: 2001-11-15
scimago Q2
wos Q3
БС1
SJR: 0.58
CiteScore: 5.1
Impact factor: 2.5
ISSN: 00218979, 10897550
General Physics and Astronomy
Краткое описание
We demonstrate very high efficiency electrophosphorescence in organic light-emitting devices employing a phosphorescent molecule doped into a wide energy gap host. Using bis(2-phenylpyridine)iridium(III) acetylacetonate [(ppy)2Ir(acac)] doped into 3-phenyl-4(1′-naphthyl)-5-phenyl-1,2,4-triazole, a maximum external quantum efficiency of (19.0±1.0)% and luminous power efficiency of (60±5) lm/W are achieved. The calculated internal quantum efficiency of (87±7)% is supported by the observed absence of thermally activated nonradiative loss in the photoluminescent efficiency of (ppy)2Ir(acac). Thus, very high external quantum efficiencies are due to the nearly 100% internal phosphorescence efficiency of (ppy)2Ir(acac) coupled with balanced hole and electron injection, and triplet exciton confinement within the light-emitting layer.
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Adachi C. et al. Nearly 100% internal phosphorescence efficiency in an organic light-emitting device // Journal of Applied Physics. 2001. Vol. 90. No. 10. pp. 5048-5051.
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Adachi C., Baldo M. A., THOMPSON M. E., Forrest S. R. Nearly 100% internal phosphorescence efficiency in an organic light-emitting device // Journal of Applied Physics. 2001. Vol. 90. No. 10. pp. 5048-5051.
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TY - JOUR
DO - 10.1063/1.1409582
UR - https://doi.org/10.1063/1.1409582
TI - Nearly 100% internal phosphorescence efficiency in an organic light-emitting device
T2 - Journal of Applied Physics
AU - Adachi, Chihaya
AU - Baldo, Marc A
AU - THOMPSON, MARK E.
AU - Forrest, Stephen R.
PY - 2001
DA - 2001/11/15
PB - AIP Publishing
SP - 5048-5051
IS - 10
VL - 90
SN - 0021-8979
SN - 1089-7550
ER -
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@article{2001_Adachi,
author = {Chihaya Adachi and Marc A Baldo and MARK E. THOMPSON and Stephen R. Forrest},
title = {Nearly 100% internal phosphorescence efficiency in an organic light-emitting device},
journal = {Journal of Applied Physics},
year = {2001},
volume = {90},
publisher = {AIP Publishing},
month = {nov},
url = {https://doi.org/10.1063/1.1409582},
number = {10},
pages = {5048--5051},
doi = {10.1063/1.1409582}
}
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MLA
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Adachi, Chihaya, et al. “Nearly 100% internal phosphorescence efficiency in an organic light-emitting device.” Journal of Applied Physics, vol. 90, no. 10, Nov. 2001, pp. 5048-5051. https://doi.org/10.1063/1.1409582.