Pyridazine derived bipolar host materials for phosphorescent organic light-emitting diodes

Ji Gwang Yu; Si Hyun Han; Hak Rim Jeon; Ho Kyoon Chung; Jun Yeob Lee

doi:10.1016/j.jlumin.2017.09.059

Pyridazine derived bipolar host materials for phosphorescent organic light-emitting diodes

Ji Gwang Yu, Si Hyun Han, Hak Rim Jeon, Ho Kyoon Chung, Jun Yeob Lee

Department of Chemical Engineering

Sungkyunkwan University

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

11 Scopus citations

Abstract

Two organic materials incited by electron deficiency of a pyridazine moiety were designed for application as bipolar host materials of phosphorescent organic light-emitting diodes. Modification of the pyridazine moiety with carbazole and pyrrolocarbazole hole transport units provided 3,6-bis(2-(9H-carbazol-9-yl)phenyl)pyridazine (CzPd) and 3,6-bis(2-(3-phenylpyrrolo[3,2-a]carbazol-10(3H)-yl)phenyl)pyridazine (PCzPd) as bipolar host materials. The 3,6-bis(2-(9H-carbazol-9-yl)phenyl)pyridazine and 3,6-bis(2-(3-phenylpyrrolo[3,2-a]carbazol-10(3H)-yl)phenyl)pyridazine were high triplet energy hosts by ortho- substitution of the hole transport units. Based on the triplet energy of the host materials, green phosphorescent organic light-emitting diodes were devised and the green devices presented high quantum efficiency of 15.5%

Original language	English
Pages (from-to)	33-39
Number of pages	7
Journal	Journal of Luminescence
Volume	194
DOIs	https://doi.org/10.1016/j.jlumin.2017.09.059
State	Published - Feb 2018

Keywords

Bipolar host
Carbazole
Phosphorescent device
Pyridazine
Pyrrolocarbazole

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10.1016/j.jlumin.2017.09.059

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title = "Pyridazine derived bipolar host materials for phosphorescent organic light-emitting diodes",

abstract = "Two organic materials incited by electron deficiency of a pyridazine moiety were designed for application as bipolar host materials of phosphorescent organic light-emitting diodes. Modification of the pyridazine moiety with carbazole and pyrrolocarbazole hole transport units provided 3,6-bis(2-(9H-carbazol-9-yl)phenyl)pyridazine (CzPd) and 3,6-bis(2-(3-phenylpyrrolo[3,2-a]carbazol-10(3H)-yl)phenyl)pyridazine (PCzPd) as bipolar host materials. The 3,6-bis(2-(9H-carbazol-9-yl)phenyl)pyridazine and 3,6-bis(2-(3-phenylpyrrolo[3,2-a]carbazol-10(3H)-yl)phenyl)pyridazine were high triplet energy hosts by ortho- substitution of the hole transport units. Based on the triplet energy of the host materials, green phosphorescent organic light-emitting diodes were devised and the green devices presented high quantum efficiency of 15.5\%",

keywords = "Bipolar host, Carbazole, Phosphorescent device, Pyridazine, Pyrrolocarbazole",

author = "Yu, \{Ji Gwang\} and Han, \{Si Hyun\} and Jeon, \{Hak Rim\} and Chung, \{Ho Kyoon\} and Lee, \{Jun Yeob\}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2018",

month = feb,

doi = "10.1016/j.jlumin.2017.09.059",

language = "English",

volume = "194",

pages = "33--39",

journal = "Journal of Luminescence",

issn = "0022-2313",

publisher = "Elsevier B.V.",

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T1 - Pyridazine derived bipolar host materials for phosphorescent organic light-emitting diodes

AU - Yu, Ji Gwang

AU - Han, Si Hyun

AU - Jeon, Hak Rim

AU - Chung, Ho Kyoon

AU - Lee, Jun Yeob

PY - 2018/2

Y1 - 2018/2

N2 - Two organic materials incited by electron deficiency of a pyridazine moiety were designed for application as bipolar host materials of phosphorescent organic light-emitting diodes. Modification of the pyridazine moiety with carbazole and pyrrolocarbazole hole transport units provided 3,6-bis(2-(9H-carbazol-9-yl)phenyl)pyridazine (CzPd) and 3,6-bis(2-(3-phenylpyrrolo[3,2-a]carbazol-10(3H)-yl)phenyl)pyridazine (PCzPd) as bipolar host materials. The 3,6-bis(2-(9H-carbazol-9-yl)phenyl)pyridazine and 3,6-bis(2-(3-phenylpyrrolo[3,2-a]carbazol-10(3H)-yl)phenyl)pyridazine were high triplet energy hosts by ortho- substitution of the hole transport units. Based on the triplet energy of the host materials, green phosphorescent organic light-emitting diodes were devised and the green devices presented high quantum efficiency of 15.5%

AB - Two organic materials incited by electron deficiency of a pyridazine moiety were designed for application as bipolar host materials of phosphorescent organic light-emitting diodes. Modification of the pyridazine moiety with carbazole and pyrrolocarbazole hole transport units provided 3,6-bis(2-(9H-carbazol-9-yl)phenyl)pyridazine (CzPd) and 3,6-bis(2-(3-phenylpyrrolo[3,2-a]carbazol-10(3H)-yl)phenyl)pyridazine (PCzPd) as bipolar host materials. The 3,6-bis(2-(9H-carbazol-9-yl)phenyl)pyridazine and 3,6-bis(2-(3-phenylpyrrolo[3,2-a]carbazol-10(3H)-yl)phenyl)pyridazine were high triplet energy hosts by ortho- substitution of the hole transport units. Based on the triplet energy of the host materials, green phosphorescent organic light-emitting diodes were devised and the green devices presented high quantum efficiency of 15.5%

KW - Bipolar host

KW - Carbazole

KW - Phosphorescent device

KW - Pyridazine

KW - Pyrrolocarbazole

UR - https://www.scopus.com/pages/publications/85030867776

U2 - 10.1016/j.jlumin.2017.09.059

DO - 10.1016/j.jlumin.2017.09.059

M3 - Article

AN - SCOPUS:85030867776

SN - 0022-2313

VL - 194

SP - 33

EP - 39

JO - Journal of Luminescence

JF - Journal of Luminescence

ER -

Pyridazine derived bipolar host materials for phosphorescent organic light-emitting diodes

Abstract

Keywords

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