PbS QUANTUM DOT LIQUID DISPERSION, METHOD FOR PRODUCING SEMICONDUCTOR FILM, METHOD FOR PRODUCING LIGHT DETECTION ELEMENT, METHOD FOR PRODUCING IMAGE SENSOR, AND METHOD FOR PRODUCING PbS QUANTUM DOT LIQUID DISPERSION

The present invention pertains to: a PbS quantum dot liquid dispersion which contains PbS quantum dots, a ligand, and a solvent, and in which the ligand includes a fatty acid having at least six carbon atoms, and, when the PbS quantum dot liquid dispersion is subjected to thermogravimetric analysis...

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Bibliographic Details
Main Authors ONO Masashi, TAKATA Masahiro
Format Patent
LanguageEnglish
French
Japanese
Published 22.08.2024
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Summary:The present invention pertains to: a PbS quantum dot liquid dispersion which contains PbS quantum dots, a ligand, and a solvent, and in which the ligand includes a fatty acid having at least six carbon atoms, and, when the PbS quantum dot liquid dispersion is subjected to thermogravimetric analysis in argon gas atmosphere at atmospheric pressure with the temperature increased from 50°C to 500°C at a rate of 20°C/min, the ratio of weight W160 at 160°C to weight W450 at 450°C is at most 2.00; a semiconductor film; a light detection element; an image sensor; and a method for producing the PbS quantum dot liquid dispersion. L'invention concerne un liquide de dispersion de points quantiques PbS qui contient des points quantiques PbS, un ligand et un solvant. Le ligand contient un acide gras de nombre d'atomes de carbone supérieur ou égal à 6. Lorsque le liquide de dispersion de points quantiques PbS est soumis à une analyse thermo-gravimétrique de 50°C à 500°C à une vitesse d'élévation de température de 20°C/min sous une atmosphère de gaz argon à pression normale, le rapport de la masse (W160) à 160°C pour la masse (W450 ) à 450°C, est inférieur ou égal à 2,00. L'invention concerne également un film semi-conducteur, un élément de photodétection, un capteur d'image, et un procédé de fabrication de liquide de dispersion de points quantiques PbS. 本発明は、PbS量子ドットと、配位子と、溶剤とを含むPbS量子ドット分散液であって、配位子は、炭素数6以上の脂肪酸を含み、PbS量子ドット分散液を常圧のアルゴンガス雰囲気下で50℃から500℃まで20℃/minの昇温速度で熱重量分析した時に、450℃での重量W450に対する160℃での重量W160の比が2.00以下である、PbS量子ドット分散液、半導体膜、光検出素子、イメージセンサおよびPbS量子ドット分散液の製造方法に関する。
Bibliography:Application Number: WO2024JP03391