Efficient white OLEDs employing red, green, and blue tetradentate platinum phosphorescent emitters

Gregory E. Norby; Choong Do Park; Barry O'Brien; Guijie Li; Liang Huang; Jian Li

doi:10.1016/j.orgel.2016.06.007

Efficient white OLEDs employing red, green, and blue tetradentate platinum phosphorescent emitters

Gregory E. Norby, Choong Do Park, Barry O'Brien, Guijie Li, Liang Huang, Jian Li

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

The development of white organic light-emitting diodes (WOLEDs) employing three tetradentate platinum-based emitters, PtN3N-ptb (red), PtON1 (blue), and PtOO8 (green), is described. Spectral and electrical results show that localization of charge buildup, energy transfers between dopants, and concentration-dependence of spectral shape are all major factors in determining the overall color quality of a device. WOLEDs are fabricated by optimizing the thickness of emissive layers, the concentration of dopants, and the stacking order of emissive layers. Ultimately, the device employing 6% PtN3N-ptb(red)/6% PtON1(blue)/6% PtOO8(green) stacking order of emissive layers demonstrates the Commission Internationale de L'Éclairage coordinates (CIE) coordinates of (0.35, 0.35) and Color Rendering Index (CRI) value of 80, peak Power Efficiency (PE) of 41 lm/W, and maximum External Quantum Efficiency (EQE) of 21.0%.

Original language	English (US)
Pages (from-to)	163-168
Number of pages	6
Journal	Organic Electronics
Volume	37
DOIs	https://doi.org/10.1016/j.orgel.2016.06.007
State	Published - Oct 1 2016

Keywords

Phosphorescence
Platinum emitters
White OLEDs

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
General Chemistry
Biomaterials
Condensed Matter Physics
Electrical and Electronic Engineering
Materials Chemistry

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10.1016/j.orgel.2016.06.007

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title = "Efficient white OLEDs employing red, green, and blue tetradentate platinum phosphorescent emitters",

abstract = "The development of white organic light-emitting diodes (WOLEDs) employing three tetradentate platinum-based emitters, PtN3N-ptb (red), PtON1 (blue), and PtOO8 (green), is described. Spectral and electrical results show that localization of charge buildup, energy transfers between dopants, and concentration-dependence of spectral shape are all major factors in determining the overall color quality of a device. WOLEDs are fabricated by optimizing the thickness of emissive layers, the concentration of dopants, and the stacking order of emissive layers. Ultimately, the device employing 6% PtN3N-ptb(red)/6% PtON1(blue)/6% PtOO8(green) stacking order of emissive layers demonstrates the Commission Internationale de L'{\'E}clairage coordinates (CIE) coordinates of (0.35, 0.35) and Color Rendering Index (CRI) value of 80, peak Power Efficiency (PE) of 41 lm/W, and maximum External Quantum Efficiency (EQE) of 21.0%.",

keywords = "Phosphorescence, Platinum emitters, White OLEDs",

author = "Norby, {Gregory E.} and Park, {Choong Do} and Barry O'Brien and Guijie Li and Liang Huang and Jian Li",

note = "Funding Information: The authors thank the Universal Display Corporation, National Science Foundation ( CHE-0748867 ), the Department of Energy ( DE-EE0007090 ), and Flexible Display Center for partial support of this work. Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2016",

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doi = "10.1016/j.orgel.2016.06.007",

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AU - Norby, Gregory E.

AU - Park, Choong Do

AU - O'Brien, Barry

AU - Li, Guijie

AU - Huang, Liang

AU - Li, Jian

N1 - Funding Information: The authors thank the Universal Display Corporation, National Science Foundation ( CHE-0748867 ), the Department of Energy ( DE-EE0007090 ), and Flexible Display Center for partial support of this work. Publisher Copyright: © 2016 Elsevier B.V.

PY - 2016/10/1

Y1 - 2016/10/1

N2 - The development of white organic light-emitting diodes (WOLEDs) employing three tetradentate platinum-based emitters, PtN3N-ptb (red), PtON1 (blue), and PtOO8 (green), is described. Spectral and electrical results show that localization of charge buildup, energy transfers between dopants, and concentration-dependence of spectral shape are all major factors in determining the overall color quality of a device. WOLEDs are fabricated by optimizing the thickness of emissive layers, the concentration of dopants, and the stacking order of emissive layers. Ultimately, the device employing 6% PtN3N-ptb(red)/6% PtON1(blue)/6% PtOO8(green) stacking order of emissive layers demonstrates the Commission Internationale de L'Éclairage coordinates (CIE) coordinates of (0.35, 0.35) and Color Rendering Index (CRI) value of 80, peak Power Efficiency (PE) of 41 lm/W, and maximum External Quantum Efficiency (EQE) of 21.0%.

AB - The development of white organic light-emitting diodes (WOLEDs) employing three tetradentate platinum-based emitters, PtN3N-ptb (red), PtON1 (blue), and PtOO8 (green), is described. Spectral and electrical results show that localization of charge buildup, energy transfers between dopants, and concentration-dependence of spectral shape are all major factors in determining the overall color quality of a device. WOLEDs are fabricated by optimizing the thickness of emissive layers, the concentration of dopants, and the stacking order of emissive layers. Ultimately, the device employing 6% PtN3N-ptb(red)/6% PtON1(blue)/6% PtOO8(green) stacking order of emissive layers demonstrates the Commission Internationale de L'Éclairage coordinates (CIE) coordinates of (0.35, 0.35) and Color Rendering Index (CRI) value of 80, peak Power Efficiency (PE) of 41 lm/W, and maximum External Quantum Efficiency (EQE) of 21.0%.

KW - Phosphorescence

KW - Platinum emitters

KW - White OLEDs

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Efficient white OLEDs employing red, green, and blue tetradentate platinum phosphorescent emitters

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