Simple structure and high efficiency phosphorescent OLEDs using narrow band-gap bipolar host material

Young Hoon Son; Jang Hyuk Kwon

doi:10.1557/opl.2012.1038

Simple structure and high efficiency phosphorescent OLEDs using narrow band-gap bipolar host material

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

Abstract

We report high-efficiency phosphorescent blue OLEDs with an organic three stacked structure. Using a high-triplet-energy-hole transporting material of TAPC and a high-triplet-energy-electron transporting material of TmPyPB, the organic three stacked structure has been realized with three new narrow band-gap blue host materials. These host materials have bipolar characteristics and high triplet energy of >2.8 eV. Very low onset voltages of 2.8-3.0 V and driving voltages of 4.2-4.6 V to obtain a brightness of 1000 cd/m2 are achieved in this three stacked device configuration. Maximum external quantum efficiency above 20% is reported.

Original language	English
Pages (from-to)	1-5
Number of pages	5
Journal	Materials Research Society Symposium Proceedings
Volume	1435
Issue number	January
DOIs	https://doi.org/10.1557/opl.2012.1038
Publication status	Published - 2012
Event	2012 MRS Spring Meeting - San Francisco, United States Duration: 9 Apr 2012 → 13 Apr 2012

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© 2012 Materials Research Society.

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10.1557/opl.2012.1038

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title = "Simple structure and high efficiency phosphorescent OLEDs using narrow band-gap bipolar host material",

abstract = "We report high-efficiency phosphorescent blue OLEDs with an organic three stacked structure. Using a high-triplet-energy-hole transporting material of TAPC and a high-triplet-energy-electron transporting material of TmPyPB, the organic three stacked structure has been realized with three new narrow band-gap blue host materials. These host materials have bipolar characteristics and high triplet energy of >2.8 eV. Very low onset voltages of 2.8-3.0 V and driving voltages of 4.2-4.6 V to obtain a brightness of 1000 cd/m2 are achieved in this three stacked device configuration. Maximum external quantum efficiency above 20% is reported.",

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AU - Son, Young Hoon

AU - Kwon, Jang Hyuk

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N2 - We report high-efficiency phosphorescent blue OLEDs with an organic three stacked structure. Using a high-triplet-energy-hole transporting material of TAPC and a high-triplet-energy-electron transporting material of TmPyPB, the organic three stacked structure has been realized with three new narrow band-gap blue host materials. These host materials have bipolar characteristics and high triplet energy of >2.8 eV. Very low onset voltages of 2.8-3.0 V and driving voltages of 4.2-4.6 V to obtain a brightness of 1000 cd/m2 are achieved in this three stacked device configuration. Maximum external quantum efficiency above 20% is reported.

AB - We report high-efficiency phosphorescent blue OLEDs with an organic three stacked structure. Using a high-triplet-energy-hole transporting material of TAPC and a high-triplet-energy-electron transporting material of TmPyPB, the organic three stacked structure has been realized with three new narrow band-gap blue host materials. These host materials have bipolar characteristics and high triplet energy of >2.8 eV. Very low onset voltages of 2.8-3.0 V and driving voltages of 4.2-4.6 V to obtain a brightness of 1000 cd/m2 are achieved in this three stacked device configuration. Maximum external quantum efficiency above 20% is reported.

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DO - 10.1557/opl.2012.1038

M3 - Conference article

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SN - 0272-9172

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SP - 1

EP - 5

JO - Materials Research Society Symposium Proceedings

JF - Materials Research Society Symposium Proceedings

IS - January

T2 - 2012 MRS Spring Meeting

Y2 - 9 April 2012 through 13 April 2012

ER -

Simple structure and high efficiency phosphorescent OLEDs using narrow band-gap bipolar host material

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