WO2009041595A1 - Electroluminescent device - Google Patents

Electroluminescent device Download PDF

Info

Publication number
WO2009041595A1
WO2009041595A1 PCT/JP2008/067457 JP2008067457W WO2009041595A1 WO 2009041595 A1 WO2009041595 A1 WO 2009041595A1 JP 2008067457 W JP2008067457 W JP 2008067457W WO 2009041595 A1 WO2009041595 A1 WO 2009041595A1
Authority
WO
WIPO (PCT)
Prior art keywords
represented
protective material
absolute value
organic compound
band gap
Prior art date
Application number
PCT/JP2008/067457
Other languages
French (fr)
Japanese (ja)
Inventor
Tomonori Akai
Yasuhiro Iizumi
Original Assignee
Dai Nippon Printing Co., Ltd.
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
Priority claimed from JP2008237064A external-priority patent/JP5407242B2/en
Application filed by Dai Nippon Printing Co., Ltd. filed Critical Dai Nippon Printing Co., Ltd.
Priority to US12/680,418 priority Critical patent/US8384064B2/en
Publication of WO2009041595A1 publication Critical patent/WO2009041595A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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
    • H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
    • H10K85/60—Organic compounds having low molecular weight
    • H10K85/615—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
    • H10K85/622—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene containing four rings, e.g. pyrene
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
    • H10K85/60—Organic compounds having low molecular weight
    • H10K85/649—Aromatic compounds comprising a hetero atom
    • H10K85/652—Cyanine dyes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
    • H10K85/60—Organic compounds having low molecular weight
    • H10K85/649—Aromatic compounds comprising a hetero atom
    • H10K85/657—Polycyclic condensed heteroaromatic hydrocarbons
    • H10K85/6574—Polycyclic condensed heteroaromatic hydrocarbons comprising only oxygen in the heteroaromatic polycondensed ring system, e.g. cumarine dyes
    • 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

Disclosed is an electroluminescent device comprising a pair of electrodes and an electroluminescent layer arranged between the electrodes and containing at least a light-emitting layer. The light-emitting layer includes a matrix material containing at least one organic compound, and a quantum dot which is dispersed in the matrix material and has a surface protected by a protective material. The protective material contains a first protective material, and when the absolute value of the ionization potential of the first protective material is represented by Ip(h), the absolute value of the electron affinity of the first protective material is represented by Ea(h), the band gap of the first protective material is represented by Eg(h), the absolute value of the ionization potential of the organic compound is represented by Ip(m), the absolute value of the electron affinity of the organic compound is represented by Ea(m), the band gap of the organic compound is represented by Eg(m), and the band gap of the quantum dot is represented by Eg(q), the following conditions (A)-(C) are all satisfied. (A) Ip(h) < Ip(m) + 0.1 eV (B) Ea(h) > Ea(m) - 0.1 eV (C) Eg(q) < Eg(h) < Eg(m)
PCT/JP2008/067457 2007-09-28 2008-09-26 Electroluminescent device WO2009041595A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/680,418 US8384064B2 (en) 2007-09-28 2008-09-26 Electroluminescent device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007255603 2007-09-28
JP2007-255603 2007-09-28
JP2008237064A JP5407242B2 (en) 2007-09-28 2008-09-16 Electroluminescence element
JP2008-237064 2008-09-16

Publications (1)

Publication Number Publication Date
WO2009041595A1 true WO2009041595A1 (en) 2009-04-02

Family

ID=40511475

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/067457 WO2009041595A1 (en) 2007-09-28 2008-09-26 Electroluminescent device

Country Status (1)

Country Link
WO (1) WO2009041595A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120305860A1 (en) * 2009-07-14 2012-12-06 Kurtin Juanita N Light conversion efficiency enhanced solar cell fabricated with downshifting nanomaterial
WO2013157495A1 (en) * 2012-04-20 2013-10-24 コニカミノルタ株式会社 Organic electroluminescence element and production method for organic electroluminescence element
JP2014078381A (en) * 2012-10-10 2014-05-01 Konica Minolta Inc White electroluminescent device and method for manufacturing white electroluminescent device
WO2020049738A1 (en) * 2018-09-07 2020-03-12 シャープ株式会社 Display device
US10763400B2 (en) 2013-08-21 2020-09-01 Osram Opto Semiconductor Gmbh Quantum dots having a nanocrystalline core, a nanocrystalline shell surrounding the core, and an insulator coating for the shell

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005502176A (en) * 2001-09-04 2005-01-20 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ Electroluminescent device with quantum dots
JP2005026210A (en) * 2003-06-10 2005-01-27 Fujitsu Ltd Organic el element
JP2006073642A (en) * 2004-08-31 2006-03-16 Sanyo Electric Co Ltd Organic electroluminescence element and organic electroluminescence device having the same
JP2007513478A (en) * 2003-12-02 2007-05-24 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Electroluminescent device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005502176A (en) * 2001-09-04 2005-01-20 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ Electroluminescent device with quantum dots
JP2005026210A (en) * 2003-06-10 2005-01-27 Fujitsu Ltd Organic el element
JP2007513478A (en) * 2003-12-02 2007-05-24 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Electroluminescent device
JP2006073642A (en) * 2004-08-31 2006-03-16 Sanyo Electric Co Ltd Organic electroluminescence element and organic electroluminescence device having the same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120305860A1 (en) * 2009-07-14 2012-12-06 Kurtin Juanita N Light conversion efficiency enhanced solar cell fabricated with downshifting nanomaterial
US10840403B2 (en) 2009-07-14 2020-11-17 Osram Opto Semiconductors Gmbh Optical downshifting layer
US11495703B2 (en) 2009-07-14 2022-11-08 Osram Opto Semiconductors Gmbh Optical downshifting layer
WO2013157495A1 (en) * 2012-04-20 2013-10-24 コニカミノルタ株式会社 Organic electroluminescence element and production method for organic electroluminescence element
JPWO2013157495A1 (en) * 2012-04-20 2015-12-21 コニカミノルタ株式会社 ORGANIC ELECTROLUMINESCENT ELEMENT AND METHOD FOR PRODUCING ORGANIC ELECTROLUMINESCENT ELEMENT
JP2014078381A (en) * 2012-10-10 2014-05-01 Konica Minolta Inc White electroluminescent device and method for manufacturing white electroluminescent device
US10763400B2 (en) 2013-08-21 2020-09-01 Osram Opto Semiconductor Gmbh Quantum dots having a nanocrystalline core, a nanocrystalline shell surrounding the core, and an insulator coating for the shell
WO2020049738A1 (en) * 2018-09-07 2020-03-12 シャープ株式会社 Display device

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