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WO2017036997A1 - Procédé de formulation de points quantiques - Google Patents

Procédé de formulation de points quantiques Download PDF

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Publication number
WO2017036997A1
WO2017036997A1 PCT/EP2016/070275 EP2016070275W WO2017036997A1 WO 2017036997 A1 WO2017036997 A1 WO 2017036997A1 EP 2016070275 W EP2016070275 W EP 2016070275W WO 2017036997 A1 WO2017036997 A1 WO 2017036997A1
Authority
WO
WIPO (PCT)
Prior art keywords
shell
quantum dots
agglomerates
particle
quantum dot
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP2016/070275
Other languages
English (en)
Inventor
Ahlf MARAIKE
Dahmen STEFAN
Leidinger PETER
Pagano SANDRO
Rieger RALPH
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of WO2017036997A1 publication Critical patent/WO2017036997A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
    • C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H10H20/80—Constructional details
    • H10H20/85—Packages
    • H10H20/851—Wavelength conversion means
    • H10H20/8511—Wavelength conversion means characterised by their material, e.g. binder
    • H10H20/8512—Wavelength conversion materials

Definitions

  • a thin shell is formed around the quantum dots. While the reaction proceeds, several of the quantum dots with a shell form an aggregate, in which the quantum dots are separated by each other through the initially formed shell. Such an agglomeration is obtained if the concentration of the precursor and/or the quantum dots is sufficiently high and/or the reaction proceeds at a sufficiently high rate.
  • Suitable precursor concentrations depend on the precursor, but are generally 0.0001 to 10 mol/l, preferably 0.001 to 5 mol/l, more preferably 0.01 to 2 mol/l, in particular 0.1 to 1 mol/l.
  • Suitable matrix materials include polymers like modified cellulose, polyethylene oxide, polyvinyl acetate, polyvinyl acohol, polyvinyl acetals, polycarbonate, poly(meth)acrylates; resins like polyurethane resins, polyamide resins, maleic acid resins; salts like potassium acetate, ammonium chloride, sodium lactate; sugars like glucose.
  • concentration of the quantum dots and the matrix material in the solvent should be chosen to render a suspension of sufficiently low viscosity to enable atomization.
  • the weight ratio of matrix material to quantum dots in the suspension is 0.01 to 1 , more preferably 0.1 to 0.5.
  • the particles according to the present invention can be used as luminescent pigments in light sources, functional films, coatings or photo resists. Therefore, the present invention relates to the use of the particles in light sources, functional films, coatings or photo resists.
  • the present invention further relates to light sources comprising the particles according to the present invention.
  • the light source is a light-emitting diode (LED), in particular a phosphor-converted LED.
  • the LED comprises semiconductors, preferred examples are InGaN, ZnSe, GaN, AIGaP, AIGalnP or GaP.
  • the particles are preferably used as phosphor in a light source, for ex- ample as downconversion material. Even more preferably, the particles are used as remote phosphor, i.e.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Luminescent Compositions (AREA)

Abstract

La présente invention concerne un procédé permettant de formuler des points quantiques destinés à être utilisés en tant que pigment luminescent dans des dispositifs d'éclairage tels que des diodes électroluminescentes, des films fonctionnels, des revêtements ou des photo-réserves. En particulier, la présente invention concerne un procédé de production de points quantiques encapsulés consistant à (a) agglomérer des points quantiques pour former des agglomérats de points quantiques, et à former une écorce autour des agglomérats de points quantiques en effectuant de 3 à 80 cycles d'un procédé de dépôt de couche atomique tandis que les agglomérats de points quantiques sont en mouvement.
PCT/EP2016/070275 2015-09-03 2016-08-29 Procédé de formulation de points quantiques Ceased WO2017036997A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15183743 2015-09-03
EP15183743.2 2015-09-03

Publications (1)

Publication Number Publication Date
WO2017036997A1 true WO2017036997A1 (fr) 2017-03-09

Family

ID=54065723

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/070275 Ceased WO2017036997A1 (fr) 2015-09-03 2016-08-29 Procédé de formulation de points quantiques

Country Status (1)

Country Link
WO (1) WO2017036997A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022006048A1 (fr) * 2020-06-29 2022-01-06 Lumileds Llc Revêtement de particules de luminophore
EP3950879A1 (fr) * 2020-08-05 2022-02-09 Lumileds LLC Revêtement de particules de phosphore
US11912914B2 (en) 2020-06-29 2024-02-27 Lumileds Llc Phosphor particle coating
US11912918B2 (en) 2020-06-29 2024-02-27 Lumileds Llc Phosphor particle coating
CN118562491A (zh) * 2024-06-07 2024-08-30 柔电（武汉）科技有限公司 一种利用原子层沉积和原子层刻蚀制备的量子点复合微球及方法
CN119875614A (zh) * 2023-10-20 2025-04-25 北京航空航天大学合肥创新研究院 一种提高量子点稳定性的方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070172580A1 (en) * 2006-01-26 2007-07-26 Osram Sylvania Inc. Moisture-resistant Electroluminescent Phosphor with High Initial Brightness and Method of Making
WO2010100335A1 (fr) 2009-03-02 2010-09-10 Valtion Teknillinen Tutkimuskeskus Agencement permettant de monter un capteur dans une paroi d'un échangeur thermique
WO2011020098A1 (fr) 2009-08-14 2011-02-17 Qd Vision, Inc. Dispositifs d'éclairage, composant optique pour un dispositif d'éclairage et procédés associés
US20110068321A1 (en) * 2009-09-23 2011-03-24 Nanoco Technologies Limited Semiconductor nanoparticle-based materials
WO2014128676A1 (fr) * 2013-02-25 2014-08-28 Koninklijke Philips N.V. Particule luminescente enrobée, élément de convertisseur luminescent, source de lumière, luminaire et procédé de fabrication d'une particule luminescente enrobée
US20140264196A1 (en) * 2013-03-14 2014-09-18 Nanoco Technologies, Ltd. Multi-Layer-Coated Quantum Dot Beads
WO2014147570A1 (fr) 2013-03-20 2014-09-25 Koninklijke Philips N.V. Points quantiques encapsulés dans des particules poreuses
US20150179900A1 (en) * 2009-09-23 2015-06-25 Nanoco Technologies Ltd. Semiconductor Nanoparticle-Based Materials

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070172580A1 (en) * 2006-01-26 2007-07-26 Osram Sylvania Inc. Moisture-resistant Electroluminescent Phosphor with High Initial Brightness and Method of Making
WO2010100335A1 (fr) 2009-03-02 2010-09-10 Valtion Teknillinen Tutkimuskeskus Agencement permettant de monter un capteur dans une paroi d'un échangeur thermique
WO2011020098A1 (fr) 2009-08-14 2011-02-17 Qd Vision, Inc. Dispositifs d'éclairage, composant optique pour un dispositif d'éclairage et procédés associés
US20110068321A1 (en) * 2009-09-23 2011-03-24 Nanoco Technologies Limited Semiconductor nanoparticle-based materials
US20150179900A1 (en) * 2009-09-23 2015-06-25 Nanoco Technologies Ltd. Semiconductor Nanoparticle-Based Materials
WO2014128676A1 (fr) * 2013-02-25 2014-08-28 Koninklijke Philips N.V. Particule luminescente enrobée, élément de convertisseur luminescent, source de lumière, luminaire et procédé de fabrication d'une particule luminescente enrobée
US20140264196A1 (en) * 2013-03-14 2014-09-18 Nanoco Technologies, Ltd. Multi-Layer-Coated Quantum Dot Beads
WO2014147570A1 (fr) 2013-03-20 2014-09-25 Koninklijke Philips N.V. Points quantiques encapsulés dans des particules poreuses

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
GEORGE, CHEMICAL REVIEWS, vol. 110, 2010, pages 111 - 131
MURRAY ET AL., JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 115, 1993, pages 8706 - 8715

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022006048A1 (fr) * 2020-06-29 2022-01-06 Lumileds Llc Revêtement de particules de luminophore
US11912914B2 (en) 2020-06-29 2024-02-27 Lumileds Llc Phosphor particle coating
US11912918B2 (en) 2020-06-29 2024-02-27 Lumileds Llc Phosphor particle coating
EP3950879A1 (fr) * 2020-08-05 2022-02-09 Lumileds LLC Revêtement de particules de phosphore
CN119875614A (zh) * 2023-10-20 2025-04-25 北京航空航天大学合肥创新研究院 一种提高量子点稳定性的方法
CN118562491A (zh) * 2024-06-07 2024-08-30 柔电（武汉）科技有限公司 一种利用原子层沉积和原子层刻蚀制备的量子点复合微球及方法

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