A host material containing tetraphenylsilane for phosphorescent OLEDs with high efficiency and operational stability

Jae Wook Kang; Deug Sang Lee; Hyung Dol Park; Ji Whan Kim; Won Ik Jeong; Young Seo Park; Se Hyung Lee; Kyungmoon Go; Jong Soon Lee; Jang Joo Kim

doi:10.1016/j.orgel.2008.02.002

A host material containing tetraphenylsilane for phosphorescent OLEDs with high efficiency and operational stability

Jae Wook Kang
, Deug Sang Lee
, Hyung Dol Park
, Ji Whan Kim
, Won Ik Jeong
, Young Seo Park
, Se Hyung Lee
, Kyungmoon Go
, Jong Soon Lee
, Jang Joo Kim^*

^*Corresponding author for this work

Department of Flexible and Printable Electronics

Seoul National University
LTD. Pyeongtaek

Research output: Contribution to journal › Journal article › peer-review

46 Scopus citations

Abstract

A host material containing tetraphenylsilane moiety, 9-(4-triphenylsilanyl-(1,1′,4,1′′)-terphenyl-4′′-yl)-9H-carbazole (TSTC), was synthesized for green phosphorescent organic light emitting diodes. The tetraphenylsilane moiety was introduced to provide high triplet energy level, thermal and chemical stability, and glassy properties leading to high efficiency and operational stability of the devices. Ir(ppy)₃ based OLEDs using the TSTC host and DTBT (2,4-diphenyl-6-(4′-triphenylsilanyl-biphenyl-4-yl)-1,3,5-triazine) hole blocking layer (HBL) resulted in the maximum external quantum efficiency of 19.8% and the power efficiency of 59.4 lm/W. High operational stability with a half lifetime of 160,000 h at an initial luminance of 100 cd/m² was achieved from an electrophosphorescent device using TSTC host and BAlq HBL.

Original language	English
Pages (from-to)	452-460
Number of pages	9
Journal	Organic Electronics
Volume	9
Issue number	4
DOIs	https://doi.org/10.1016/j.orgel.2008.02.002
State	Published - 2008.08

Keywords

High efficiency
Operational stability
Phosphorescent OLED
Tetraphenylsilane containing host

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10.1016/j.orgel.2008.02.002

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@article{c1d5d3201014448ea4e72db98a8ad433,

title = "A host material containing tetraphenylsilane for phosphorescent OLEDs with high efficiency and operational stability",

abstract = "A host material containing tetraphenylsilane moiety, 9-(4-triphenylsilanyl-(1,1′,4,1′′)-terphenyl-4′′-yl)-9H-carbazole (TSTC), was synthesized for green phosphorescent organic light emitting diodes. The tetraphenylsilane moiety was introduced to provide high triplet energy level, thermal and chemical stability, and glassy properties leading to high efficiency and operational stability of the devices. Ir(ppy)3 based OLEDs using the TSTC host and DTBT (2,4-diphenyl-6-(4′-triphenylsilanyl-biphenyl-4-yl)-1,3,5-triazine) hole blocking layer (HBL) resulted in the maximum external quantum efficiency of 19.8\% and the power efficiency of 59.4 lm/W. High operational stability with a half lifetime of 160,000 h at an initial luminance of 100 cd/m2 was achieved from an electrophosphorescent device using TSTC host and BAlq HBL.",

keywords = "High efficiency, Operational stability, Phosphorescent OLED, Tetraphenylsilane containing host",

author = "Kang, \{Jae Wook\} and Lee, \{Deug Sang\} and Park, \{Hyung Dol\} and Kim, \{Ji Whan\} and Jeong, \{Won Ik\} and Park, \{Young Seo\} and Lee, \{Se Hyung\} and Kyungmoon Go and Lee, \{Jong Soon\} and Kim, \{Jang Joo\}",

year = "2008",

month = aug,

doi = "10.1016/j.orgel.2008.02.002",

language = "English",

volume = "9",

pages = "452--460",

journal = "Organic Electronics",

issn = "1566-1199",

number = "4",

}

TY - JOUR

T1 - A host material containing tetraphenylsilane for phosphorescent OLEDs with high efficiency and operational stability

AU - Kang, Jae Wook

AU - Lee, Deug Sang

AU - Park, Hyung Dol

AU - Kim, Ji Whan

AU - Jeong, Won Ik

AU - Park, Young Seo

AU - Lee, Se Hyung

AU - Go, Kyungmoon

AU - Lee, Jong Soon

AU - Kim, Jang Joo

PY - 2008/8

Y1 - 2008/8

N2 - A host material containing tetraphenylsilane moiety, 9-(4-triphenylsilanyl-(1,1′,4,1′′)-terphenyl-4′′-yl)-9H-carbazole (TSTC), was synthesized for green phosphorescent organic light emitting diodes. The tetraphenylsilane moiety was introduced to provide high triplet energy level, thermal and chemical stability, and glassy properties leading to high efficiency and operational stability of the devices. Ir(ppy)3 based OLEDs using the TSTC host and DTBT (2,4-diphenyl-6-(4′-triphenylsilanyl-biphenyl-4-yl)-1,3,5-triazine) hole blocking layer (HBL) resulted in the maximum external quantum efficiency of 19.8% and the power efficiency of 59.4 lm/W. High operational stability with a half lifetime of 160,000 h at an initial luminance of 100 cd/m2 was achieved from an electrophosphorescent device using TSTC host and BAlq HBL.

AB - A host material containing tetraphenylsilane moiety, 9-(4-triphenylsilanyl-(1,1′,4,1′′)-terphenyl-4′′-yl)-9H-carbazole (TSTC), was synthesized for green phosphorescent organic light emitting diodes. The tetraphenylsilane moiety was introduced to provide high triplet energy level, thermal and chemical stability, and glassy properties leading to high efficiency and operational stability of the devices. Ir(ppy)3 based OLEDs using the TSTC host and DTBT (2,4-diphenyl-6-(4′-triphenylsilanyl-biphenyl-4-yl)-1,3,5-triazine) hole blocking layer (HBL) resulted in the maximum external quantum efficiency of 19.8% and the power efficiency of 59.4 lm/W. High operational stability with a half lifetime of 160,000 h at an initial luminance of 100 cd/m2 was achieved from an electrophosphorescent device using TSTC host and BAlq HBL.

KW - High efficiency

KW - Operational stability

KW - Phosphorescent OLED

KW - Tetraphenylsilane containing host

UR - https://www.scopus.com/pages/publications/43849089747

U2 - 10.1016/j.orgel.2008.02.002

DO - 10.1016/j.orgel.2008.02.002

M3 - Journal article

AN - SCOPUS:43849089747

SN - 1566-1199

VL - 9

SP - 452

EP - 460

JO - Organic Electronics

JF - Organic Electronics

IS - 4

ER -

A host material containing tetraphenylsilane for phosphorescent OLEDs with high efficiency and operational stability

Abstract

Keywords

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