WO2012005457A3 - Highly efficient organic electroluminescent device - Google Patents

Highly efficient organic electroluminescent device Download PDF

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Publication number
WO2012005457A3
WO2012005457A3 PCT/KR2011/004585 KR2011004585W WO2012005457A3 WO 2012005457 A3 WO2012005457 A3 WO 2012005457A3 KR 2011004585 W KR2011004585 W KR 2011004585W WO 2012005457 A3 WO2012005457 A3 WO 2012005457A3
Authority
WO
WIPO (PCT)
Prior art keywords
hole
transport layer
electron transport
host
organic electroluminescent
Prior art date
Application number
PCT/KR2011/004585
Other languages
French (fr)
Korean (ko)
Other versions
WO2012005457A2 (en
Inventor
이준엽
전순옥
손효석
육경수
장상억
Original Assignee
단국대학교 산학협력단
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 단국대학교 산학협력단 filed Critical 단국대학교 산학협력단
Publication of WO2012005457A2 publication Critical patent/WO2012005457A2/en
Publication of WO2012005457A3 publication Critical patent/WO2012005457A3/en

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Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/14—Carrier transporting layers
    • H10K50/15—Hole transporting layers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/14—Carrier transporting layers
    • H10K50/16—Electron transporting layers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2101/00—Properties of the organic materials covered by group H10K85/00
    • H10K2101/10—Triplet emission
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2101/00—Properties of the organic materials covered by group H10K85/00
    • H10K2101/30—Highest occupied molecular orbital [HOMO], lowest unoccupied molecular orbital [LUMO] or Fermi energy values

Abstract

The present invention comprises a first electrode, a second electrode, a hole-transport layer, an electron transport layer, and a light emitting layer. In the organic electroluminescent device in which the light emitting layer includes a host and a dopant, the HOMO energy level difference between the host and the hole-transport material of the hole-transport layer is below 0.2eV. The difference in LUMO energy level between the host and the electron transport material of the electron transport layer is below 0.2eV. The difference in LUMO energy level between the host and the hole-transport material of the hole-transport layer is above 0.2eV. The difference in HOMO energy level between the host and the electron transport material of the electron transport layer is above 0.2eV. The organic electroluminescent device is characterized in that the hole-transport material of the hole-transport layer has a triplet energy greater than that of the dopant, and the electron transport material of the electron transport layer has a triplet energy greater than that of the dopant. The highly efficient organic electroluminescent device of the present invention can keep the balance of electric charges similar according to the voltage, acquire the balance of electric charges in the light emitting layer, and bind excitons in the light emitting layer, thereby implementing high efficiency.
PCT/KR2011/004585 2010-07-06 2011-06-23 Highly efficient organic electroluminescent device WO2012005457A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2010-0064642 2010-07-06
KR1020100064642A KR20120004018A (en) 2010-07-06 2010-07-06 Highly efficient organic light emitting device

Publications (2)

Publication Number Publication Date
WO2012005457A2 WO2012005457A2 (en) 2012-01-12
WO2012005457A3 true WO2012005457A3 (en) 2012-03-29

Family

ID=45441618

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2011/004585 WO2012005457A2 (en) 2010-07-06 2011-06-23 Highly efficient organic electroluminescent device

Country Status (2)

Country Link
KR (1) KR20120004018A (en)
WO (1) WO2012005457A2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102071630B1 (en) 2013-06-10 2020-01-31 삼성디스플레이 주식회사 Organic light emitting diode device
KR102129266B1 (en) * 2014-04-30 2020-07-03 삼성디스플레이 주식회사 Organic light emitting display
KR102487514B1 (en) * 2014-12-22 2023-01-12 솔루스첨단소재 주식회사 Organic electro luminescence device
WO2016105036A1 (en) * 2014-12-22 2016-06-30 주식회사 두산 Organic electroluminescent element
CN111710788B (en) * 2015-08-07 2023-07-21 株式会社半导体能源研究所 Light emitting element, display device, electronic device, and lighting device
KR102386707B1 (en) 2017-09-20 2022-04-14 삼성디스플레이 주식회사 Organic light emitting diode and display device including the same
KR102071124B1 (en) * 2018-01-10 2020-03-02 울산과학기술원 Graphene qunatum dot self-luminescent structure, manufacturing method for the same, and luminescence device comprising the same
CN111276617B (en) * 2018-12-04 2024-01-02 固安鼎材科技有限公司 Organic electroluminescent device
KR102121154B1 (en) * 2019-12-24 2020-06-09 두산솔루스 주식회사 Organic electroluminescent device
WO2021192159A1 (en) * 2020-03-26 2021-09-30 シャープ株式会社 Light-emitting element and display device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009032977A (en) * 2007-07-27 2009-02-12 Fujifilm Corp Organic electroluminescent element
JP2009076511A (en) * 2007-09-18 2009-04-09 Fujifilm Corp Organic electroluminescent element
JP2009076510A (en) * 2007-09-18 2009-04-09 Fujifilm Corp Organic electroluminescent element

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009032977A (en) * 2007-07-27 2009-02-12 Fujifilm Corp Organic electroluminescent element
JP2009076511A (en) * 2007-09-18 2009-04-09 Fujifilm Corp Organic electroluminescent element
JP2009076510A (en) * 2007-09-18 2009-04-09 Fujifilm Corp Organic electroluminescent element

Also Published As

Publication number Publication date
WO2012005457A2 (en) 2012-01-12
KR20120004018A (en) 2012-01-12

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