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Title:
QUANTUM DOT, METHOD FOR MANUFACTURING SAME, WAVELENGTH CONVERSION MEMBER USING QUANTUM DOT, ILLUMINATION MEMBER, BACKLIGHT DEVICE, AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/074083
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a Cd-free quantum dot that has a narrow full width at half maximum and emits blue fluorescence. This quantum dot (1) is characterized by not containing cadmium and by having a full width at half maximum of no more than 25 nm. In the present invention, the quantum dot is preferably a nanocrystal either containing zinc and selenium or containing zinc, selenium, and sulfur. The quantum dot also preferably has a core-shell structure in which the nanocrystal serves as a core (1a) and the surface of the core is covered by a shell (1b).

Inventors:
OGURA YUKO (JP)
TAKAMIZUMA YUKA (JP)
IIDA KAZUNORI (JP)
TSUTSUMI EMI (JP)
TANAKA MASANORI (JP)
NIKATA SOICHIRO (JP)
Application Number:
JP2018/038038
Publication Date:
April 18, 2019
Filing Date:
October 12, 2018
Export Citation:
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Assignee:
NS MAT INC (〒8180042, JP)
International Classes:
C09K11/88; C01B19/04; F21V7/30; H01L33/50; F21Y115/10
Domestic Patent References:
WO2009034777A12009-03-19
WO2017086362A12017-05-26
WO2007060889A12007-05-31
Foreign References:
JP2002525394A2002-08-13
JP2017198667A2017-11-02
Other References:
ORGANIC ELECTRONICS, vol. 15, 2014, pages 126 - 131
MATERIALS SCIENCE AND ENGINEERING C, vol. 64, 2016, pages 167 - 172
Attorney, Agent or Firm:
AOKI, Hiroyoshi et al. (〒1020076, JP)
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