Highly Efficient and Vivid-Red Phosphors Bearing 2,3-Diphenylquinoxaline Units and Their Application to Organic Light-Emitting Devices
Summary :
Newly designed cyclometalated iridium phosphors bearing 2,3-diphenylquinoxalines were characterized to provide highly efficient and vivid-red emitting materials for electrophosphorescent organic light-emitting devices. Excellent quantum efficiencies for photoluminescence (PL) within a range 50-79% were observed in dichloromethane solutions at room temperature. A greatly improved PL decay lifetime of 1.1 µsec was also observed in CBP coevaporated film. Luminescence peak wavelengths of the phosphors lay within a preferable range 653-675 nm in evaporated films. The most vivid-red electroluminescence with 1931 CIE chromaticity coordinates of (x=0.70, y=0.28) was successfully attained.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E87-C No.12 pp.2119-2121
- Publication Date
- 2004/12/01
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- Special Section LETTER (Special Section on Recent Progress in Organic Molecular Electronics)
- Category
- Characterization of Organic Devices
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Hiroyuki FUJII, Hidehiro SAKURAI, Kazuyasu TANI, Lisheng MAO, Kenichiro WAKISAKA, Toshikazu HIRAO, "Highly Efficient and Vivid-Red Phosphors Bearing 2,3-Diphenylquinoxaline Units and Their Application to Organic Light-Emitting Devices" in IEICE TRANSACTIONS on Electronics,
vol. E87-C, no. 12, pp. 2119-2121, December 2004, doi: .
Abstract: Newly designed cyclometalated iridium phosphors bearing 2,3-diphenylquinoxalines were characterized to provide highly efficient and vivid-red emitting materials for electrophosphorescent organic light-emitting devices. Excellent quantum efficiencies for photoluminescence (PL) within a range 50-79% were observed in dichloromethane solutions at room temperature. A greatly improved PL decay lifetime of 1.1 µsec was also observed in CBP coevaporated film. Luminescence peak wavelengths of the phosphors lay within a preferable range 653-675 nm in evaporated films. The most vivid-red electroluminescence with 1931 CIE chromaticity coordinates of (x=0.70, y=0.28) was successfully attained.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e87-c_12_2119/_p
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@ARTICLE{e87-c_12_2119,
author={Hiroyuki FUJII, Hidehiro SAKURAI, Kazuyasu TANI, Lisheng MAO, Kenichiro WAKISAKA, Toshikazu HIRAO, },
journal={IEICE TRANSACTIONS on Electronics},
title={Highly Efficient and Vivid-Red Phosphors Bearing 2,3-Diphenylquinoxaline Units and Their Application to Organic Light-Emitting Devices},
year={2004},
volume={E87-C},
number={12},
pages={2119-2121},
abstract={Newly designed cyclometalated iridium phosphors bearing 2,3-diphenylquinoxalines were characterized to provide highly efficient and vivid-red emitting materials for electrophosphorescent organic light-emitting devices. Excellent quantum efficiencies for photoluminescence (PL) within a range 50-79% were observed in dichloromethane solutions at room temperature. A greatly improved PL decay lifetime of 1.1 µsec was also observed in CBP coevaporated film. Luminescence peak wavelengths of the phosphors lay within a preferable range 653-675 nm in evaporated films. The most vivid-red electroluminescence with 1931 CIE chromaticity coordinates of (x=0.70, y=0.28) was successfully attained.},
keywords={},
doi={},
ISSN={},
month={December},}
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TY - JOUR
TI - Highly Efficient and Vivid-Red Phosphors Bearing 2,3-Diphenylquinoxaline Units and Their Application to Organic Light-Emitting Devices
T2 - IEICE TRANSACTIONS on Electronics
SP - 2119
EP - 2121
AU - Hiroyuki FUJII
AU - Hidehiro SAKURAI
AU - Kazuyasu TANI
AU - Lisheng MAO
AU - Kenichiro WAKISAKA
AU - Toshikazu HIRAO
PY - 2004
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E87-C
IS - 12
JA - IEICE TRANSACTIONS on Electronics
Y1 - December 2004
AB - Newly designed cyclometalated iridium phosphors bearing 2,3-diphenylquinoxalines were characterized to provide highly efficient and vivid-red emitting materials for electrophosphorescent organic light-emitting devices. Excellent quantum efficiencies for photoluminescence (PL) within a range 50-79% were observed in dichloromethane solutions at room temperature. A greatly improved PL decay lifetime of 1.1 µsec was also observed in CBP coevaporated film. Luminescence peak wavelengths of the phosphors lay within a preferable range 653-675 nm in evaporated films. The most vivid-red electroluminescence with 1931 CIE chromaticity coordinates of (x=0.70, y=0.28) was successfully attained.
ER -
English
