CsPbBr_(3)钙钛矿量子点的合成与表征

Synthesis and Characterization of CsPbBr_(3) Perovskite Quantum Dots

钙钛矿量子点由于具有独特的电子和发光性质,近几年已成为生物标记、发光二极管、激光和太阳能电池等领域的研究热点。以全无机钙钛矿类量子点为例设计一个研究型综合实验,实验涵盖了CsPbBr_(3)钙钛矿量子点的制备、表征以及利用钙钛矿量子点荧光性质进行LED器件封装等内容,旨在用简单实验揭开钙钛矿量子点的神秘面纱,让学生感受到科技的魅力。该实验既能让学生更好地了解钙钛矿量子点材料基本知识和应用,还能让学生熟悉液相沉淀法和掌握X射线衍射仪、扫描电子显微镜以及荧光光谱仪等仪器的相关原理及操作,对激发学生科学研究的兴趣和培养学生的综合实践技能、创新思维能力具有积极意义。

Perovskite quantum dots have become a research hotspot in the fields of biomarkers,light-emitting diodes,lasers and solar cells due to their unique electronic and luminescent properties in recent years.In this paper,we design a research-based comprehensive experiment on inorganic perovskite quantum dots,which covers the preparation and characterization of CsPbBr_(3) perovskite quantum dots as well as the packaging of LED devices using the fluorescent properties of perovskite quantum dots,aiming to unveil the mystery of perovskite quantum dots with simple experiments and let students feel the charm of science and technology.The experiment not only provides students with a better understanding of the basic knowledge and applications of perovskite quantum dots materials,but also familiarises them with the liquid phase precipitation method and the principles and operations of X-ray diffractometer,scanning electron microscope and fluorescence spectrometer,which are of positive significance in stimulating students'interest in scientific research and cultivating their comprehensive practical skills and innovative thinking ability.