CORE-SHELL-TYPE SEMICONDUCTOR NANOPARTICLES, METHOD FOR PRODUCING SAME, AND LIGHT-EMITTING DEVICE

• Main Authors: UEMATSU TARO, TORIMOTO TSUKASA, OYAMATSU DAISUKE, KAMEYAMA TATSUYA, KUWABATA SUSUMU, WAJIMA KAZUTAKA
• Format: Patent
• Language: Chinese; English
• Published: 23.10.2020
• Subjects: ADHESIVES; BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; DYES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; INORGANIC CHEMISTRY; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NANOTECHNOLOGY; NATURAL RESINS; PAINTS; PERFORMING OPERATIONS; POLISHES; SEMICONDUCTOR DEVICES; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TRANSPORTING

Provided are core-shell-type semiconductor nanoparticles that each have a core and a shell disposed on the surface of the core, and that, upon being irradiated with light, emit light. The core includes a semiconductor that contains M1, M2 and Z, wherein: M1 includes at least one selected from the group consisting of Ag, Cu, and Au; M2 includes at least one selected from the group consisting of Al,Ga, In and Tl; and Z includes at least one selected from the group consisting of S, Se, and Te. The shell includes a semiconductor that contains a group 13 element and a group 16 element, and that has a greater bandgap energy than the core. The shell has disposed on the surface thereof a compound containing group 15 elements, said group 15 elements at least including P having a negative oxidationnumber. 本发明提供一种核壳型半导体纳米粒子，其具备核、和配置于上述核表面的壳，所述核壳型半导体纳米粒子若被照射光则进行发光。上述核包含含有M1、M2和Z的半导体，M1包含选自Ag、Cu和Au中的至少一种，M2包含选自Al、Ga、In和Tl中的至少一种，Z包含选自S、Se和Te中的至少一种。上述壳包含含有第13族元素和第16族元素、且带隙能大于上述核的半导体。在上述壳的表面配置包含第15族元素的化合物，上述第15族元素至少包含具有负氧化数的