Sensor properties of nanostructured copper oxide films to ultraviolet radiation
DOI (Low Temperature Physics):
https://doi.org/10.1063/10.0043157Ключові слова:
нанокомпозити, ультрафіолетові сенсори, тонкі плівки, нанокристалиАнотація
Робота присвячена вивченню сенсорних властивостей нананокомпозитних структур, утворених шляхом атмосферного відпалу мідних плівок. Показано, що відпал мідних плівок товщиною 50–100 нм за температури 280 °C спричиняє утворення нанокомпозитних плівок, що складаються із суміші двох оксидів: CuO та Cu2O. Структури, отримані таким чином, зберігають або навіть збільшують свою дисперсність та демонструють чутливість до ультрафіолетового випромінювання. Було показано, що досліджувані нанокомпозити зворотно знижують свій електричний опір під дією ультрафіолетового випромінювання, тобто можуть бути використані як сенсорні матеріали. Запропоновано декілька механізмів фоточутливості, серед яких найімовірніший полягає у частковому розкладі фази CuO під дією ультрафіолетового випромінювання.
Посилання
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