A pyrene-phenanthroimidazole derivative for non-doped blue organic light-emitting devices

Ying Zhang; Tsz-Wai Ng; Feng Lu; Qing-Xiao Tong; Shiu-Lun Lai; Mei-Yee Chan; Hoi-Lun Kwong; Chun-Sing Lee

doi:10.1016/j.dyepig.2013.01.022

A pyrene-phenanthroimidazole derivative for non-doped blue organic light-emitting devices

Ying Zhang, Tsz-Wai Ng, Feng Lu, Qing-Xiao Tong, Shiu-Lun Lai, Mei-Yee Chan, Hoi-Lun Kwong, Chun-Sing Lee

Centre of Super-Diamond and Advanced Films

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

46 Citations (Scopus)

Abstract

We report a newly synthesized blue fluorescent pyrene-phenanthroimidazole based emitter Py-BPI and its applications in non-doped organic light-emitting devices (OLEDs). Py-BPI has a high fluorescence quantum yield of 40% and good thermal stability with a high glass transition temperature of 137 °C. Based on Py-BPI, OLEDs with several configurations have been fabricated. Among these devices, an OLED with only two organic layers of Py-BPI and BPhen demonstrates blue emission with high efficiencies of 3.93 cd/A and 3.2 lm/W and maintains a high efficiency of 3.83 cd/A even at a brightness of 5000 cd/m². Combining with its hole-transporting ability, Py-BPI is shown to be a versatile blue emitter especially suitable for high brightness applications. © 2013 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	190-194
Journal	Dyes and Pigments
Volume	98
Issue number	2
DOIs	https://doi.org/10.1016/j.dyepig.2013.01.022
Publication status	Published - Aug 2013

Research Keywords

Blue emitter
Dual function
Hole transporter
Non-doped
OLED
Pyrene-based

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@article{0d3960919fcf41b99e42f0061cad5f25,

title = "A pyrene-phenanthroimidazole derivative for non-doped blue organic light-emitting devices",

abstract = "We report a newly synthesized blue fluorescent pyrene-phenanthroimidazole based emitter Py-BPI and its applications in non-doped organic light-emitting devices (OLEDs). Py-BPI has a high fluorescence quantum yield of 40% and good thermal stability with a high glass transition temperature of 137 °C. Based on Py-BPI, OLEDs with several configurations have been fabricated. Among these devices, an OLED with only two organic layers of Py-BPI and BPhen demonstrates blue emission with high efficiencies of 3.93 cd/A and 3.2 lm/W and maintains a high efficiency of 3.83 cd/A even at a brightness of 5000 cd/m2. Combining with its hole-transporting ability, Py-BPI is shown to be a versatile blue emitter especially suitable for high brightness applications. {\textcopyright} 2013 Elsevier B.V. All rights reserved.",

keywords = "Blue emitter, Dual function, Hole transporter, Non-doped, OLED, Pyrene-based",

author = "Ying Zhang and Tsz-Wai Ng and Feng Lu and Qing-Xiao Tong and Shiu-Lun Lai and Mei-Yee Chan and Hoi-Lun Kwong and Chun-Sing Lee",

year = "2013",

month = aug,

doi = "10.1016/j.dyepig.2013.01.022",

language = "English",

volume = "98",

pages = "190--194",

journal = "Dyes and Pigments",

issn = "0143-7208",

publisher = "Elsevier B.V.",

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}

TY - JOUR

T1 - A pyrene-phenanthroimidazole derivative for non-doped blue organic light-emitting devices

AU - Zhang, Ying

AU - Ng, Tsz-Wai

AU - Lu, Feng

AU - Tong, Qing-Xiao

AU - Lai, Shiu-Lun

AU - Chan, Mei-Yee

AU - Kwong, Hoi-Lun

AU - Lee, Chun-Sing

PY - 2013/8

Y1 - 2013/8

N2 - We report a newly synthesized blue fluorescent pyrene-phenanthroimidazole based emitter Py-BPI and its applications in non-doped organic light-emitting devices (OLEDs). Py-BPI has a high fluorescence quantum yield of 40% and good thermal stability with a high glass transition temperature of 137 °C. Based on Py-BPI, OLEDs with several configurations have been fabricated. Among these devices, an OLED with only two organic layers of Py-BPI and BPhen demonstrates blue emission with high efficiencies of 3.93 cd/A and 3.2 lm/W and maintains a high efficiency of 3.83 cd/A even at a brightness of 5000 cd/m2. Combining with its hole-transporting ability, Py-BPI is shown to be a versatile blue emitter especially suitable for high brightness applications. © 2013 Elsevier B.V. All rights reserved.

AB - We report a newly synthesized blue fluorescent pyrene-phenanthroimidazole based emitter Py-BPI and its applications in non-doped organic light-emitting devices (OLEDs). Py-BPI has a high fluorescence quantum yield of 40% and good thermal stability with a high glass transition temperature of 137 °C. Based on Py-BPI, OLEDs with several configurations have been fabricated. Among these devices, an OLED with only two organic layers of Py-BPI and BPhen demonstrates blue emission with high efficiencies of 3.93 cd/A and 3.2 lm/W and maintains a high efficiency of 3.83 cd/A even at a brightness of 5000 cd/m2. Combining with its hole-transporting ability, Py-BPI is shown to be a versatile blue emitter especially suitable for high brightness applications. © 2013 Elsevier B.V. All rights reserved.

KW - Blue emitter

KW - Dual function

KW - Hole transporter

KW - Non-doped

KW - OLED

KW - Pyrene-based

UR - http://www.scopus.com/inward/record.url?scp=84875282674&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84875282674&origin=recordpage

U2 - 10.1016/j.dyepig.2013.01.022

DO - 10.1016/j.dyepig.2013.01.022

M3 - RGC 21 - Publication in refereed journal

SN - 0143-7208

VL - 98

SP - 190

EP - 194

JO - Dyes and Pigments

JF - Dyes and Pigments

IS - 2

ER -

A pyrene-phenanthroimidazole derivative for non-doped blue organic light-emitting devices

Abstract

Research Keywords

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