SEMICONDUCTOR NANOPARTICLE AND METHOD FOR PRODUCING THE SAME, AND LIGHT-EMITTING DEVICE

• Main Authors: UEMATSU TARO, TORIMOTO TSUKASA, KUWAHATA SUSUMU, YAMAUCHI HIROKI, OYAMATSU DAISUKE, KAMEYAMA TATSUYA, MORI YUKI
• Format: Patent
• Language: English; Japanese
• Published: 24.09.2020
• 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

To provide a method for producing a semiconductor nanoparticle that exhibits band-end emission.SOLUTION: The method for producing semiconductor nanoparticle comprises obtaining a first mixture containing a silver (Ag) salt, an alkali metal salt, a salt containing at least one of indium (In) and gallium (Ga), a sulfur source and an organic solvent, and subjecting the first mixture to heat treatment. Here, the ratio of the number of atoms of the alkali metal to the total number of atoms of Ag and alkali metal in the first mixture is more than 0 and less than 1.SELECTED DRAWING: Figure 6 【課題】バンド端発光を示す半導体ナノ粒子の製造方法を提供する。【解決手段】半導体ナノ粒子の製造方法は、銀（Ａｇ）塩と、アルカリ金属塩と、インジウム（Ｉｎ）及びガリウム（Ｇａ）の少なくとも一方を含む塩と、硫黄源と、有機溶媒とを含む第一混合物を得ることと、前記第一混合物を熱処理することを含む。ここで前記第一混合物におけるＡｇとアルカリ金属の原子数の合計に対するアルカリ金属の原子数の比が０を超えて１未満である。【選択図】図６