The relationship between the substitution position of the diphenylphosphine oxide on the spirobifluorene and device performances of blue phosphorescent organic light-emitting diodes

Sang Eok Jang; Chul Woong Joo; Soon Ok Jeon; Kyoung Soo Yook; Jun Yeob Lee

doi:10.1016/j.orgel.2010.03.005

The relationship between the substitution position of the diphenylphosphine oxide on the spirobifluorene and device performances of blue phosphorescent organic light-emitting diodes

Sang Eok Jang, Chul Woong Joo, Soon Ok Jeon, Kyoung Soo Yook, Jun Yeob Lee

Dankook University

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

17 Scopus citations

Abstract

A high triplet energy host (SPPO11) with a diphenylphosphine oxide group attached to the 4 position of the spirobifluorene was synthesized and its device performances were compared with those of the triplet host with the diphenylphosphine oxide at the 2 position of the spirobifluorene (SPPO1). The thermal stability of the SPPO11 was much better than that of the SPPO1 and the efficiency of the blue PHOLED with the SPPO11 host was higher than that of the blue PHOLED with the SPPO1 host. The SPPO11 could be effectively used as the high triplet energy host in the blue PHOLED and a high quantum efficiency of 17.2%and a current efficiency of 35.3 cd/A were obtained in the blue PHOLED with the SPPO11 host.

Original language	English
Pages (from-to)	1059-1065
Number of pages	7
Journal	Organic Electronics
Volume	11
Issue number	6
DOIs	https://doi.org/10.1016/j.orgel.2010.03.005
State	Published - Jun 2010
Externally published	Yes

Keywords

Blue phosphorescent organic light-emitting diodes
High efficiency
Phosphine oxide
Spirobifluorene

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10.1016/j.orgel.2010.03.005

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@article{a8fe8f33defa4c10bc086669244a0de9,

title = "The relationship between the substitution position of the diphenylphosphine oxide on the spirobifluorene and device performances of blue phosphorescent organic light-emitting diodes",

abstract = "A high triplet energy host (SPPO11) with a diphenylphosphine oxide group attached to the 4 position of the spirobifluorene was synthesized and its device performances were compared with those of the triplet host with the diphenylphosphine oxide at the 2 position of the spirobifluorene (SPPO1). The thermal stability of the SPPO11 was much better than that of the SPPO1 and the efficiency of the blue PHOLED with the SPPO11 host was higher than that of the blue PHOLED with the SPPO1 host. The SPPO11 could be effectively used as the high triplet energy host in the blue PHOLED and a high quantum efficiency of 17.2\%and a current efficiency of 35.3 cd/A were obtained in the blue PHOLED with the SPPO11 host.",

keywords = "Blue phosphorescent organic light-emitting diodes, High efficiency, Phosphine oxide, Spirobifluorene",

author = "\{Eok Jang\}, Sang and \{Woong Joo\}, Chul and \{Ok Jeon\}, Soon and \{Soo Yook\}, Kyoung and \{Yeob Lee\}, Jun",

year = "2010",

month = jun,

doi = "10.1016/j.orgel.2010.03.005",

language = "English",

volume = "11",

pages = "1059--1065",

journal = "Organic Electronics",

issn = "1566-1199",

publisher = "Elsevier B.V.",

number = "6",

}

The relationship between the substitution position of the diphenylphosphine oxide on the spirobifluorene and device performances of blue phosphorescent organic light-emitting diodes. / Eok Jang, Sang; Woong Joo, Chul; Ok Jeon, Soon et al.
In: Organic Electronics, Vol. 11, No. 6, 06.2010, p. 1059-1065.

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

TY - JOUR

T1 - The relationship between the substitution position of the diphenylphosphine oxide on the spirobifluorene and device performances of blue phosphorescent organic light-emitting diodes

AU - Eok Jang, Sang

AU - Woong Joo, Chul

AU - Ok Jeon, Soon

AU - Soo Yook, Kyoung

AU - Yeob Lee, Jun

PY - 2010/6

Y1 - 2010/6

N2 - A high triplet energy host (SPPO11) with a diphenylphosphine oxide group attached to the 4 position of the spirobifluorene was synthesized and its device performances were compared with those of the triplet host with the diphenylphosphine oxide at the 2 position of the spirobifluorene (SPPO1). The thermal stability of the SPPO11 was much better than that of the SPPO1 and the efficiency of the blue PHOLED with the SPPO11 host was higher than that of the blue PHOLED with the SPPO1 host. The SPPO11 could be effectively used as the high triplet energy host in the blue PHOLED and a high quantum efficiency of 17.2%and a current efficiency of 35.3 cd/A were obtained in the blue PHOLED with the SPPO11 host.

AB - A high triplet energy host (SPPO11) with a diphenylphosphine oxide group attached to the 4 position of the spirobifluorene was synthesized and its device performances were compared with those of the triplet host with the diphenylphosphine oxide at the 2 position of the spirobifluorene (SPPO1). The thermal stability of the SPPO11 was much better than that of the SPPO1 and the efficiency of the blue PHOLED with the SPPO11 host was higher than that of the blue PHOLED with the SPPO1 host. The SPPO11 could be effectively used as the high triplet energy host in the blue PHOLED and a high quantum efficiency of 17.2%and a current efficiency of 35.3 cd/A were obtained in the blue PHOLED with the SPPO11 host.

KW - Blue phosphorescent organic light-emitting diodes

KW - High efficiency

KW - Phosphine oxide

KW - Spirobifluorene

UR - https://www.scopus.com/pages/publications/78349308591

U2 - 10.1016/j.orgel.2010.03.005

DO - 10.1016/j.orgel.2010.03.005

M3 - Article

AN - SCOPUS:78349308591

SN - 1566-1199

VL - 11

SP - 1059

EP - 1065

JO - Organic Electronics

JF - Organic Electronics

IS - 6

ER -

The relationship between the substitution position of the diphenylphosphine oxide on the spirobifluorene and device performances of blue phosphorescent organic light-emitting diodes

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Keywords

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