The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 22, 2022
Filed:
Sep. 05, 2019
Shoei Chemical Inc., Tokyo, JP;
Takafumi Moriyama, Tosu, JP;
Hirokazu Sasaki, Tosu, JP;
Makoto Kido, Tosu, JP;
Keisuke Matsuura, Tosu, JP;
Yuko Mitsuka, Tosu, JP;
Naoki Sakura, Tosu, JP;
SHOEI CHEMICAL INC., Tokyo, JP;
Abstract
The purpose of the present invention to provide semiconductor nanoparticles substantially containing no Cd, and which have an increased absorption coefficient to blue light while maintaining high stability. Semiconductor nanoparticles having a core containing at least In and P, and a shell having one or more layers, wherein at least one layer of the shell is ZnSeTe (wherein Te/(Se+Te)=0.03 to 0.50); and the semiconductor nanoparticles cause, when the semiconductor nanoparticles are dispersed in a dispersion medium to yield a dispersion liquid with a concentration of 1 mg/mL in inorganic mass, the dispersion liquid to have an absorbance of 0.9 or higher with respect to light having a wavelength of 450 nm at an optical path length of 1 cm.