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

Provided is a method for producing semiconductor nanoparticles that exhibit band-edge emission and have a superior quantum yield. This method for producing semiconductor nanoparticles comprises: raising the temperature of a first mixture containing a salt of Ag, a salt containing In and/or Ga, a sol...

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Main Authors WAJIMA, Kazutaka, OYAMATSU, Daisuke, KUWABATA, Susumu, UEMATSU, Taro, TORIMOTO, Tsukasa, KAMEYAMA, Tatsuya
Format Patent
LanguageEnglish
French
Japanese
Published 22.08.2019
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Abstract Provided is a method for producing semiconductor nanoparticles that exhibit band-edge emission and have a superior quantum yield. This method for producing semiconductor nanoparticles comprises: raising the temperature of a first mixture containing a salt of Ag, a salt containing In and/or Ga, a solid compound that serves as a source for supplying S, and an organic solvent, to a temperature in the range of 125-175°C; following the raising of the temperature, subjecting the mixture to a thermal treatment at a temperature in the range of 125-175°C for 3 seconds or longer, to obtain a solution containing semiconductor nanoparticles; and, following the thermal treatment, lowering the temperature of the solution containing the semiconductor nanoparticles, wherein the solid compound serving as a source for supplying S contains thiourea. L'invention concerne une méthode de production de nanoparticules semi-conductrices qui présentent une émission de bord de bande et ont un rendement quantique supérieur. Cette méthode de production de nanoparticules semi-conductrices consiste à : élever la température d'un premier mélange contenant un sel d'Ag, un sel contenant In et/ou Ga, un composé solide qui sert de source d'alimentation en S, et un solvant organique, à une température dans la plage allant de 125 à 175°C ; suite à l'élévation de la température, soumettre le mélange à un traitement thermique à une température dans la plage allant de 125 à 175°C pendant 3 secondes ou plus, pour obtenir une solution contenant des nanoparticules semi-conductrices ; et, suite au traitement thermique, abaisser la température de la solution contenant les nanoparticules semi-conductrices, le composé solide servant de source d'alimentation en S contenant de la thiourée. バンド端発光を示し、量子収率に優れる半導体ナノ粒子の製造方法が提供される。半導体ナノ粒子の製造方法は、Agの塩と、InおよびGaの少なくとも一方を含む塩と、Sの供給源となる固体状化合物と、有機溶剤とを含む第一混合物を、125℃以上175℃以下の範囲にある温度まで昇温することと、前記昇温に続いて、125℃以上175℃以下の範囲にある温度にて、前記混合物を3秒以上熱処理することで、半導体ナノ粒子を含む溶液を得ることと、前記熱処理に続いて、前記半導体ナノ粒子を含む溶液を降温することと、を含み、Sの供給源となる固体状化合物は、チオ尿素を含む。
AbstractList Provided is a method for producing semiconductor nanoparticles that exhibit band-edge emission and have a superior quantum yield. This method for producing semiconductor nanoparticles comprises: raising the temperature of a first mixture containing a salt of Ag, a salt containing In and/or Ga, a solid compound that serves as a source for supplying S, and an organic solvent, to a temperature in the range of 125-175°C; following the raising of the temperature, subjecting the mixture to a thermal treatment at a temperature in the range of 125-175°C for 3 seconds or longer, to obtain a solution containing semiconductor nanoparticles; and, following the thermal treatment, lowering the temperature of the solution containing the semiconductor nanoparticles, wherein the solid compound serving as a source for supplying S contains thiourea. L'invention concerne une méthode de production de nanoparticules semi-conductrices qui présentent une émission de bord de bande et ont un rendement quantique supérieur. Cette méthode de production de nanoparticules semi-conductrices consiste à : élever la température d'un premier mélange contenant un sel d'Ag, un sel contenant In et/ou Ga, un composé solide qui sert de source d'alimentation en S, et un solvant organique, à une température dans la plage allant de 125 à 175°C ; suite à l'élévation de la température, soumettre le mélange à un traitement thermique à une température dans la plage allant de 125 à 175°C pendant 3 secondes ou plus, pour obtenir une solution contenant des nanoparticules semi-conductrices ; et, suite au traitement thermique, abaisser la température de la solution contenant les nanoparticules semi-conductrices, le composé solide servant de source d'alimentation en S contenant de la thiourée. バンド端発光を示し、量子収率に優れる半導体ナノ粒子の製造方法が提供される。半導体ナノ粒子の製造方法は、Agの塩と、InおよびGaの少なくとも一方を含む塩と、Sの供給源となる固体状化合物と、有機溶剤とを含む第一混合物を、125℃以上175℃以下の範囲にある温度まで昇温することと、前記昇温に続いて、125℃以上175℃以下の範囲にある温度にて、前記混合物を3秒以上熱処理することで、半導体ナノ粒子を含む溶液を得ることと、前記熱処理に続いて、前記半導体ナノ粒子を含む溶液を降温することと、を含み、Sの供給源となる固体状化合物は、チオ尿素を含む。
Author OYAMATSU, Daisuke
KUWABATA, Susumu
UEMATSU, Taro
WAJIMA, Kazutaka
TORIMOTO, Tsukasa
KAMEYAMA, Tatsuya
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– fullname: KAMEYAMA, Tatsuya
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DocumentTitleAlternate NANOPARTICULES SEMI-CONDUCTRICES, SA MÉTHODE DE PRODUCTION ET DISPOSITIF ÉLECTROLUMINESCENT
半導体ナノ粒子、その製造方法および発光デバイス
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RelatedCompanies NICHIA CORPORATION
OSAKA UNIVERSITY
NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY
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Snippet Provided is a method for producing semiconductor nanoparticles that exhibit band-edge emission and have a superior quantum yield. This method for producing...
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SourceType Open Access Repository
SubjectTerms 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
Title SEMICONDUCTOR NANOPARTICLES, METHOD FOR PRODUCING SAME, AND LIGHT-EMITTING DEVICE
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