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Title:
METHOD FOR PRODUCING QUANTUM DOT, AND ORGANIC PHOSPHINE
Document Type and Number:
WIPO Patent Application WO/2018/084262
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a method whereby it becomes possible to produce a quantum dot having a narrow grain size distribution with high reproducibility even when an amino-substituted organic phosphine precursor is used in the synthesis of the quantum dot. The method for producing a quantum dot according to one aspect of the present invention comprises a step of mixing a Group-IIIB precursor with an organic phosphine precursor to produce a precursor mixture and a step of heating the precursor mixture to produce a solution of a Group-IIIB phosphide quantum dot, wherein the organic phosphine precursor has one or multiple amino substituents, and at least one of parent amines for the amino substituents has a boiling point of 160ºC or higher under the standard atmospheric pressure.

Inventors:
MORIYAMA TAKAFUMI (US)
NOVET THOMAS E (US)
SCHUT DAVID M (US)
Application Number:
PCT/JP2017/039807
Publication Date:
May 11, 2018
Filing Date:
November 02, 2017
Export Citation:
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Assignee:
SHOEI CHEMICAL IND CO (JP)
International Classes:
C01B25/08; B82Y20/00; B82Y40/00; C07F9/24; C09K11/70
Domestic Patent References:
WO2016146719A12016-09-22
Foreign References:
JP2000290268A2000-10-17
JP2002284774A2002-10-03
JP2003238579A2003-08-27
JP2014015549A2014-01-30
US6576291B22003-06-10
Other References:
JANARTHANAN GOPALAKRISHNAN, APPL. OR-GANOMETAL. CHEM., vol. 23, 2009, pages 291 - 318
MICKAEL D. TESSIER, CHEM. MATER., vol. 27, 2015, pages 4893 - 4898
TAICHI MATSUMOTO, CHEMISTRY LETTERS, vol. 33, no. 11, 2004
"Aminophosphines: A Double Role in the Synthesis of Colloidal Indium Phosphide Quantum Dots", J. AM. CHEM. SOC., vol. 138, no. 18, 2016, pages 5923 - 5929
"Synthesis and Characterization of InP, Gap, and GaInP2 Quantum Dots", J. PHYS. CHEM., vol. 99, 1995, pages 7754 - 7759
"Nano Letters", vol. 2, 2002, AMERICAN CHEMICAL SOCIETY, pages: 1027 - 1030
"Strongly Luminescent InP/ZnS Core - Shell Nanoparticles", CHEMPHYSCHEM, 2001
"Highly Efficient Cadmium-Free Quantum Dot Light-Emitting Diodes Enabled by the Direct Formation of Excitons within InP@ZnSeS Quantum Dots", ACS NANO, vol. 7, no. 10, 2013, pages 9019 - 9026
"InP@ZnSeS, Core@Composition Gradient Shell Quantum Dots with Enhanced Stability", CHEM. MATER., vol. 23, no. 20, 2011, pages 4459 - 4463
"Highly Luminescent InP/GaP/ZnS Nanocrystals and Their Application to White Light-Emitting Diodes", J.AM.CHEM.SOC., vol. 134, 2012, pages 3804 - 3809
JOUNG ET AL.: "Facile synthesis of uniform large-sized InP nanocrystal quantum dots using tris (tertbutyldimethylsilyl) phosphine", NANOSCALE RESEARCH LETTERS, vol. 7, 2012, pages 93
See also references of EP 3536663A4
Attorney, Agent or Firm:
SAKAI, Masami et al. (JP)
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