Synthesis, photophysical and electro-optical properties of bis-carbazolyl methane based host material for pure-blue phosphorescent OLED

Byoung Joon Moon; Kyoung Soo Yook; Jun Yeob Lee; Seunghan Shin; Seok Ho Hwang

doi:10.1016/j.jlumin.2012.05.011

Synthesis, photophysical and electro-optical properties of bis-carbazolyl methane based host material for pure-blue phosphorescent OLED

Byoung Joon Moon, Kyoung Soo Yook, Jun Yeob Lee, Seunghan Shin, Seok Ho Hwang

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

12 Scopus citations

Abstract

A new high triplet-energy host material, 9-(4-(bis(9-ethyl-9H-carbazol-3- yl)methyl)phenyl)-9H-carbazole (bis-CMPC), was synthesized and its device performance of phosphorescent organic light-emitting diode was investigated. This host material showed a high triplet energy (∼2.95 eV) and good thermal stability. Highly efficient pure-blue PHOLED was obtained when employing bis-CMPC as the host material and bis((3,5-difluoro-4-cyanophenyl)pyridine) iridium picolinate as the guest material. The maximum external quantum efficiency of the device reached as high as 13.3% with a pure-blue color coordinate of (0.14, 0.21).

Original language	English
Pages (from-to)	2557-2560
Number of pages	4
Journal	Journal of Luminescence
Volume	132
Issue number	10
DOIs	https://doi.org/10.1016/j.jlumin.2012.05.011
State	Published - Oct 2012
Externally published	Yes

Keywords

Bis-Carbazolyl methane
Host material
Phosphorescent OLEDs
Triplet energy

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10.1016/j.jlumin.2012.05.011

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@article{589fa893c8f6402a92e0004dda0c4a46,

title = "Synthesis, photophysical and electro-optical properties of bis-carbazolyl methane based host material for pure-blue phosphorescent OLED",

abstract = "A new high triplet-energy host material, 9-(4-(bis(9-ethyl-9H-carbazol-3- yl)methyl)phenyl)-9H-carbazole (bis-CMPC), was synthesized and its device performance of phosphorescent organic light-emitting diode was investigated. This host material showed a high triplet energy (∼2.95 eV) and good thermal stability. Highly efficient pure-blue PHOLED was obtained when employing bis-CMPC as the host material and bis((3,5-difluoro-4-cyanophenyl)pyridine) iridium picolinate as the guest material. The maximum external quantum efficiency of the device reached as high as 13.3\% with a pure-blue color coordinate of (0.14, 0.21).",

keywords = "Bis-Carbazolyl methane, Host material, Phosphorescent OLEDs, Triplet energy",

author = "Moon, \{Byoung Joon\} and Yook, \{Kyoung Soo\} and Lee, \{Jun Yeob\} and Seunghan Shin and Hwang, \{Seok Ho\}",

year = "2012",

month = oct,

doi = "10.1016/j.jlumin.2012.05.011",

language = "English",

volume = "132",

pages = "2557--2560",

journal = "Journal of Luminescence",

issn = "0022-2313",

publisher = "Elsevier B.V.",

number = "10",

}

TY - JOUR

T1 - Synthesis, photophysical and electro-optical properties of bis-carbazolyl methane based host material for pure-blue phosphorescent OLED

AU - Moon, Byoung Joon

AU - Yook, Kyoung Soo

AU - Lee, Jun Yeob

AU - Shin, Seunghan

AU - Hwang, Seok Ho

PY - 2012/10

Y1 - 2012/10

N2 - A new high triplet-energy host material, 9-(4-(bis(9-ethyl-9H-carbazol-3- yl)methyl)phenyl)-9H-carbazole (bis-CMPC), was synthesized and its device performance of phosphorescent organic light-emitting diode was investigated. This host material showed a high triplet energy (∼2.95 eV) and good thermal stability. Highly efficient pure-blue PHOLED was obtained when employing bis-CMPC as the host material and bis((3,5-difluoro-4-cyanophenyl)pyridine) iridium picolinate as the guest material. The maximum external quantum efficiency of the device reached as high as 13.3% with a pure-blue color coordinate of (0.14, 0.21).

AB - A new high triplet-energy host material, 9-(4-(bis(9-ethyl-9H-carbazol-3- yl)methyl)phenyl)-9H-carbazole (bis-CMPC), was synthesized and its device performance of phosphorescent organic light-emitting diode was investigated. This host material showed a high triplet energy (∼2.95 eV) and good thermal stability. Highly efficient pure-blue PHOLED was obtained when employing bis-CMPC as the host material and bis((3,5-difluoro-4-cyanophenyl)pyridine) iridium picolinate as the guest material. The maximum external quantum efficiency of the device reached as high as 13.3% with a pure-blue color coordinate of (0.14, 0.21).

KW - Bis-Carbazolyl methane

KW - Host material

KW - Phosphorescent OLEDs

KW - Triplet energy

UR - https://www.scopus.com/pages/publications/84861840219

U2 - 10.1016/j.jlumin.2012.05.011

DO - 10.1016/j.jlumin.2012.05.011

M3 - Article

AN - SCOPUS:84861840219

SN - 0022-2313

VL - 132

SP - 2557

EP - 2560

JO - Journal of Luminescence

JF - Journal of Luminescence

IS - 10

ER -

Synthesis, photophysical and electro-optical properties of bis-carbazolyl methane based host material for pure-blue phosphorescent OLED

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Keywords

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