US 12,441,938 B2
Semiconductor nanoparticles composed of AgAuS-based multicomponent compound
Tsukasa Torimoto, Nagoya (JP); Tatsuya Kameyama, Nagoya (JP); Mariko Hasegawa, Nagoya (JP); Chie Miyamae, Nagoya (JP); Hiroki Sato, Tsukuba (JP); Yuusuke Ohshima, Tsukuba (JP); and Shojiro Kikuchi, Tsukuba (JP)
Assigned to NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM, Nagoya (JP); and TANAKA KIKINZOKU KOGYO K.K., Tokyo (JP)
Appl. No. 18/835,465
Filed by NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM, Nagoya (JP); and TANAKA KIKINZOKU KOGYO K.K., Tokyo (JP)
PCT Filed Jan. 30, 2023, PCT No. PCT/JP2023/002840
§ 371(c)(1), (2) Date Jan. 24, 2025,
PCT Pub. No. WO2023/149392, PCT Pub. Date Aug. 10, 2023.
Claims priority of application No. 2022-015989 (JP), filed on Feb. 3, 2022.
Prior Publication US 2025/0163320 A1, May 22, 2025
Int. Cl. C09K 11/62 (2006.01); C01G 7/00 (2006.01); C09K 11/02 (2006.01); C09K 11/58 (2006.01); B82Y 20/00 (2011.01); B82Y 40/00 (2011.01)
CPC C09K 11/621 (2013.01) [C01G 7/006 (2013.01); C09K 11/025 (2013.01); C09K 11/582 (2013.01); C09K 11/584 (2013.01); B82Y 20/00 (2013.01); B82Y 40/00 (2013.01); C01P 2002/54 (2013.01); C01P 2002/70 (2013.01); C01P 2002/85 (2013.01); C01P 2004/04 (2013.01); C01P 2004/64 (2013.01); C01P 2004/80 (2013.01); C01P 2006/40 (2013.01); C01P 2006/60 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A semiconductor nanoparticle comprising:
a compound containing Ag, Au, S and a metal M as essential constitutional elements,
wherein the metal M is at least any of Al, Ga, In, Tl, Zn, Cd, Hg and Cu,
the compound has a total content of Ag, Au, S and the metal M of 95 mass % or more, and
a ratio (x/(x+y)) of the number of atoms of Ag to a sum of the number of atoms of Ag, x, and the number of atoms of Au, y, in the compound is 0.60 or more and 0.88 or less.