Synthesis and their device performance of solution processable host materials based on carbazole derivatives

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

doi:10.1016/j.synthmet.2012.09.001

Synthesis and their device performance of solution processable host materials based on carbazole derivatives

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

Dankook University

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

4 Scopus citations

Abstract

New carbazole based soluble high triplet-energy host materials, 9-(4-(bis(9-ethyl-9H-carbazol-3-yl)methyl)phenyl)-9H-carbazole and (9-(4-(bis(9-ethyl-9H-carbazol-3-yl)methyl)phenyl)-9H-carbazole-3,6-diyl) bis(diphenylphosphine oxide), were synthesized and device performances of solution processed blue PHOLEDs were investigated. These host materials showed a high triplet energy (∼2.94 eV), excellent film formation ability and thermal stability. The maximum external quantum efficiency of blue PHOLEDs reached as high as 12.1% with a blue color coordinate of (0.14, 0.19).

Original language	English
Pages (from-to)	1828-1833
Number of pages	6
Journal	Synthetic Metals
Volume	162
Issue number	21-22
DOIs	https://doi.org/10.1016/j.synthmet.2012.09.001
State	Published - Dec 2012
Externally published	Yes

Keywords

bis-Carbazolyl methane
Host material
Phosphine oxide
Phosphorescent OLEDs
Solution process
Triplet energy

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10.1016/j.synthmet.2012.09.001

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@article{c83167396b434d71bb7a5026551ede37,

title = "Synthesis and their device performance of solution processable host materials based on carbazole derivatives",

abstract = "New carbazole based soluble high triplet-energy host materials, 9-(4-(bis(9-ethyl-9H-carbazol-3-yl)methyl)phenyl)-9H-carbazole and (9-(4-(bis(9-ethyl-9H-carbazol-3-yl)methyl)phenyl)-9H-carbazole-3,6-diyl) bis(diphenylphosphine oxide), were synthesized and device performances of solution processed blue PHOLEDs were investigated. These host materials showed a high triplet energy (∼2.94 eV), excellent film formation ability and thermal stability. The maximum external quantum efficiency of blue PHOLEDs reached as high as 12.1\% with a blue color coordinate of (0.14, 0.19).",

keywords = "bis-Carbazolyl methane, Host material, Phosphine oxide, Phosphorescent OLEDs, Solution process, Triplet energy",

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

year = "2012",

month = dec,

doi = "10.1016/j.synthmet.2012.09.001",

language = "English",

volume = "162",

pages = "1828--1833",

journal = "Synthetic Metals",

issn = "0379-6779",

publisher = "Elsevier B.V.",

number = "21-22",

}

TY - JOUR

T1 - Synthesis and their device performance of solution processable host materials based on carbazole derivatives

AU - Moon, Byoung Joon

AU - Yook, Kyoung Soo

AU - Lee, Jun Yeob

AU - Hwang, Seok Ho

PY - 2012/12

Y1 - 2012/12

N2 - New carbazole based soluble high triplet-energy host materials, 9-(4-(bis(9-ethyl-9H-carbazol-3-yl)methyl)phenyl)-9H-carbazole and (9-(4-(bis(9-ethyl-9H-carbazol-3-yl)methyl)phenyl)-9H-carbazole-3,6-diyl) bis(diphenylphosphine oxide), were synthesized and device performances of solution processed blue PHOLEDs were investigated. These host materials showed a high triplet energy (∼2.94 eV), excellent film formation ability and thermal stability. The maximum external quantum efficiency of blue PHOLEDs reached as high as 12.1% with a blue color coordinate of (0.14, 0.19).

AB - New carbazole based soluble high triplet-energy host materials, 9-(4-(bis(9-ethyl-9H-carbazol-3-yl)methyl)phenyl)-9H-carbazole and (9-(4-(bis(9-ethyl-9H-carbazol-3-yl)methyl)phenyl)-9H-carbazole-3,6-diyl) bis(diphenylphosphine oxide), were synthesized and device performances of solution processed blue PHOLEDs were investigated. These host materials showed a high triplet energy (∼2.94 eV), excellent film formation ability and thermal stability. The maximum external quantum efficiency of blue PHOLEDs reached as high as 12.1% with a blue color coordinate of (0.14, 0.19).

KW - bis-Carbazolyl methane

KW - Host material

KW - Phosphine oxide

KW - Phosphorescent OLEDs

KW - Solution process

KW - Triplet energy

UR - https://www.scopus.com/pages/publications/84869030639

U2 - 10.1016/j.synthmet.2012.09.001

DO - 10.1016/j.synthmet.2012.09.001

M3 - Letter

AN - SCOPUS:84869030639

SN - 0379-6779

VL - 162

SP - 1828

EP - 1833

JO - Synthetic Metals

JF - Synthetic Metals

IS - 21-22

ER -

Synthesis and their device performance of solution processable host materials based on carbazole derivatives

Abstract

Keywords

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