TY - JOUR
T1 - High efficiency white organic light emitting diodes employing blue and red platinum emitters
AU - O'Brien, Barry
AU - Norby, Gregory
AU - Li, Guijie
AU - Li, Jian
N1 - Funding Information:
The authors thank the National Science Foundation CHE-0748867, Universal Display Corporation, and DOE-EE0005075 for partial support of this work. The Flexible Display Center is sponsored by the Army Research Laboratory (ARL) and was accomplished under Cooperative Agreement 911NG-04-2-005. The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the official policies, either expressed or implied, of the ARL or the U.S. Government. The U.S. Government is authorized to reproduce and distribute reprints for government purposes, notwithstanding any copyright notation herein.
PY - 2014/1
Y1 - 2014/1
N2 - Platinum-based blue and red emitters were used to make stacked organic light-emitting diodes devices for potential use in solid-state lighting. The electroluminescence (EL) spectra were strongly dependent on the red layer thickness and relative position of the red and blue emissive layers. Although all devices had very little EL in the green region, a color rendering index (CRI) as high as 65 was achieved. Addition of a suitable phosphorescent green emissive layer should produce higher CRI values. All devices tested exhibited external quantum efficiencies greater than 20%, indicating that the Pt-based emitters reported here are potentially useful for solid-state lighting applications.
AB - Platinum-based blue and red emitters were used to make stacked organic light-emitting diodes devices for potential use in solid-state lighting. The electroluminescence (EL) spectra were strongly dependent on the red layer thickness and relative position of the red and blue emissive layers. Although all devices had very little EL in the green region, a color rendering index (CRI) as high as 65 was achieved. Addition of a suitable phosphorescent green emissive layer should produce higher CRI values. All devices tested exhibited external quantum efficiencies greater than 20%, indicating that the Pt-based emitters reported here are potentially useful for solid-state lighting applications.
KW - Pt-based emitters
KW - electrophosphorescence
KW - organic light emitting diode
KW - photonics
KW - solid-state lighting
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U2 - 10.1117/1.JPE.4.043597
DO - 10.1117/1.JPE.4.043597
M3 - Article
AN - SCOPUS:84898619152
SN - 1947-7988
VL - 4
JO - Journal of Photonics for Energy
JF - Journal of Photonics for Energy
IS - 1
M1 - 043597
ER -