Semiconductor nanoparticles and method for producing same
AssigneesNational University Corporation Tokai National Higher Education and Research System, Osaka University, Nichia Corporation
InventorsTsukasa TORIMOTO, Tatsuya KAMEYAMA, Susumu KUWABATA, Taro UEMATSU, Daisuke OYAMATSU
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Abstract
Provided is a method for producing a semiconductor nanoparticle including preparing a mixture containing a Ag salt, a salt containing at least one of In and Ga, and an organic solvent; raising the temperature of the mixture to a raised temperature in a range of from 120° C. to 300° C.; and adding a supply source of S to the mixture at the raised temperature in such a manner that a ratio of a number of S atoms to a number of Ag atoms in the mixture increases at a rate of not more than 10/min.
Claims23
1-16. (canceled)
A method for producing a semiconductor nanoparticle, the method comprising:
- preparing a mixture containing an Ag salt, a salt containing at least one of In and Ga, and an organic solvent;
- raising a temperature of the mixture to a raised temperature in a range of from 120° C. to 300° C.;
- and
- adding a supply source of S to the mixture at the raised temperature in such a manner that a rate of increase in a ratio of a number of S atoms to a number of Ag atoms in the mixture is not more than 10/min.
A method for producing a semiconductor nanoparticle, the method comprising:
- preparing a mixture containing an Ag salt, a Cu salt, a salt containing at least one of In and Ga, and an organic solvent;
- raising a temperature of the mixture to a raised temperature in a range of from 120° C. to 300° C.;
- and
- adding a supply source of S to the mixture at the raised temperature in such a manner that a rate of increase in a ratio of a number of S atoms to a total number of Ag atoms and Cu atoms in the mixture is not more than 10/min.
A semiconductor nanoparticle, comprising:
- Ag, Cu, at least one of In and Ga, and S, wherein a ratio of a number of Cu atoms to a total number of Ag atoms and Cu atoms is from 0.001 to 0.9;
- and
- upon irradiation of light having a wavelength in a range of from 350 nm to less than 500 nm, emitting light having a wavelength longer than the wavelength of the light irradiated.
Dependencies are inferred from the claim text.