High Quantum Efficiency Blue Phosphorescent Organic Light-Emitting Diodes Using 6-Position-Modified Benzofuro[2,3-b]pyridine Derivatives

Lee, Chil Won; Joo, Sung Hoon; Lee, Jun Yeob

doi:10.1021/am303256c

Cited by 30 publications

(17 citation statements)

References 19 publications

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“…[53][54][55][56][57] This confirms that the polysiloxane backbone has only minimal influence on the photophysical properties of the pendant mCP chromophore. The triplet energy (E T ) of PmCPSi was obtained from its phosphorescence spectrum at 77 K in dichloromethane: a well-structured band is observed in the 400-550 nm region.…”

Section: Photophysical Propertiessupporting

confidence: 52%

Solution-Processed Blue/Deep Blue and White Phosphorescent Organic Light-Emitting Diodes (PhOLEDs) Hosted by a Polysiloxane Derivative with Pendant mCP (1,3-bis(9-carbazolyl)benzene)

Sun¹,

Zhou

Liu³

et al. 2015

ACS Appl. Mater. Interfaces

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Shouke (2015) 'Solution-processed blue/deep blue and white phosphorescent organic light emitting diodes (PhOLEDs) hosted by a polysiloxane derivative with pendant mCP (1, 3-bis(9-carbazolyl)benzene).', ACS applied materials interfaces., 7 (51). pp. 27989-27998. Further information on publisher's website:http://dx.doi.org/10.1021/am507592sPublisher's copyright statement:This document is the Accepted Manuscript version of a Published Work that appeared in nal form in ACS Applied Materials and Interfaces, copyright c 2015 American Chemical Society after peer review and technical editing by the publisher. To access the nal edited and published work see http://dx.doi.org/10.1021/am507592s. Additional information:Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-pro t purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details.

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Section: Photophysical Propertiessupporting

confidence: 52%

Solution-Processed Blue/Deep Blue and White Phosphorescent Organic Light-Emitting Diodes (PhOLEDs) Hosted by a Polysiloxane Derivative with Pendant mCP (1,3-bis(9-carbazolyl)benzene)

Sun¹,

Zhou

Liu³

et al. 2015

ACS Appl. Mater. Interfaces

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“…Another benzofuropyridine derivative with a substituent at the 6‐position was also prepared by synthesizing the 6‐chloro[1]benzofuro[2,3‐ b ]pyridine intermediate. Two host materials, 6‐(carbazol‐9‐yl)benzofuro[2,3‐ b ]pyridine (Cz‐6BFP) and 6‐(3‐(carbazol‐9‐yl)phenyl)‐benzofuro[2,3‐ b ]pyridine (PCz‐6BFP), were developed and high QE values above 20% were obtained due to good charge balance and energy transfer …”

Section: Bipolar Host Materials For Oledsmentioning

confidence: 99%

Bipolar Host Materials for Organic Light-Emitting Diodes

Yook

Lee

2015

The Chemical Record

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It is important to balance holes and electrons in the emitting layer of organic light-emitting diodes to maximize recombination efficiency and the accompanying external quantum efficiency. Therefore, the host materials of the emitting layer should transport both holes and electrons for the charge balance. From this perspective, bipolar hosts have been popular as the host materials of thermally activated delayed fluorescent devices and phosphorescent organic light-emitting diodes. In this review, we have summarized recent developments of bipolar hosts and suggested perspectives of host materials for organic light-emitting diodes.

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“…There are two approaches to realize bipolar hosts. One approach is to synthesize a new material consisting of a hole transporting unit and an electron transporting unit . The other approach is to use a co‐host composed of a hole transporting material (HTM) and an electron transporting material (ETM) .…”

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confidence: 99%

Blue Phosphorescent Organic Light‐Emitting Diodes Using an Exciplex Forming Co‐host with the External Quantum Efficiency of Theoretical Limit

et al. 2014

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A high-efficiency blue-emitting organic light-emitting diode (OLED) approaching theoretical efficiency using an exciplex-forming co-host composed of N,N'-dicarbazolyl-3,5-benzene (mCP) and bis-4,6-(3,5-di-3-pyridylphenyl)- 2-methylpyrimidine (B3PYMPM) is fabricated. Iridium(III)bis[(4,6-difluorophenyl)- pyridinato-N,C2']picolinate (FIrpic) is used as the emitter, which turns out to have a preferred horizontal dipole orientation in the emitting layer. The OLED shows a maximum external quantum efficiency of 29.5% (a maximum current efficiency of 62.2 cd A(-1) ), which is in perfect agreement with the theoretical prediction.

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High Quantum Efficiency Blue Phosphorescent Organic Light-Emitting Diodes Using 6-Position-Modified Benzofuro[2,3-b]pyridine Derivatives

Cited by 30 publications

References 19 publications

Solution-Processed Blue/Deep Blue and White Phosphorescent Organic Light-Emitting Diodes (PhOLEDs) Hosted by a Polysiloxane Derivative with Pendant mCP (1,3-bis(9-carbazolyl)benzene)

Solution-Processed Blue/Deep Blue and White Phosphorescent Organic Light-Emitting Diodes (PhOLEDs) Hosted by a Polysiloxane Derivative with Pendant mCP (1,3-bis(9-carbazolyl)benzene)

Bipolar Host Materials for Organic Light-Emitting Diodes

Blue Phosphorescent Organic Light‐Emitting Diodes Using an Exciplex Forming Co‐host with the External Quantum Efficiency of Theoretical Limit

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