X-RAY DETECTOR COMPRISING SCINTILLATOR, WHICH COMPRISES PEROVSKITE COMPOUND

• Main Authors: LEE, Sungeun, PARK, Sangjun, ITO, Mikiko
• Format: Patent
• Language: English; French; Korean
• Published: 24.08.2023
• Subjects: CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; INORGANIC CHEMISTRY; MEASUREMENT OF NUCLEAR OR X-RADIATION; MEASURING; MEDICAL OR VETERINARY SCIENCE; METALLURGY; PHYSICS; SURGERY; TESTING

An X-ray detector according to the present disclosure comprises: a scintillator for converting incident X-rays into visible rays; a photoelectric conversion part, which is disposed below the scintillator and converts the visible rays into electrical signals; and a substrate disposed below the photoelectric conversion part, wherein the scintillator comprises a perovskite compound represented by the following chemical formula 1. [Chemical formula 1] A3B2X5:Activator (In the chemical formula, A is a monovalent metal cation, B is a divalent metal cation, X is a monovalent anion, and the activator is thallium (Tl) or indium (In).) Un détecteur de rayons X selon la présente divulgation comprend : un scintillateur permettant de convertir des rayons X incidents en rayons visibles ; une partie conversion photoélectrique, disposée au-dessous du scintillateur et qui convertit les rayons visibles en signaux électriques ; et un substrat disposé au-dessous de la partie conversion photoélectrique, le scintillateur comprenant un composé de pérovskite représenté par la formule chimique 1 suivante. [Formule chimique 1] A3B2X5 : Activateur (dans la formule chimique, A est un cation métallique monovalent, B est un cation métallique divalent, X est un anion monovalent, et l'activateur est le thallium (Tl) ou l'indium (In).) 본 개시에 따른 엑스선 검출기는 입사되는 엑스선(X-ray)을 가시광선으로 변환하는 신틸레이터, 신틸레이터의 하부에 배치되고, 가시광선을 전기적 신호로 변환하는 광전변환부 및 광전변환부의 하부에 배치되는 기판을 포함하고, 신틸레이터는 하기 화학식 1로 표시되는 페로브스카이트 화합물을 포함한다. [화학식 1] A3B2X5:Activator (화학식에서 A는 1가의 금속 양이온이고, B는 2가의 금속 양이온이며 X는 1가의 음이온이며, 액티베이터(Activator)는 탈륨(Tl, Thallium) 또는 인듐(In, Indium)임.)