S G Asadullayeva, N A IsmayIlova, E H AlIzade, N T Mamedov, A I Bayramov, M A Musayev, I I Abbasov
{"title":"Photoluminescence and spectroscopic ellipsometry of single crystal MnGa2S4","authors":"S G Asadullayeva, N A IsmayIlova, E H AlIzade, N T Mamedov, A I Bayramov, M A Musayev, I I Abbasov","doi":"10.1007/s12034-024-03197-1","DOIUrl":null,"url":null,"abstract":"<div><p>This paper reports the synthesis, photoluminescence (PL) and spectroscopic ellipsometry (SE) studies of MnGa<sub>2</sub>S<sub>4</sub> single crystal. Here, the study of photoluminescence properties of the compound in the visible and infrared regions and the calculation of colour coordinates were widely investigated. In the present work, previously observed optical transitions in various works were observed in PL spectra. A higher correlated colour temperature value of 4353 K suggests that this material is suitable for light-emitting diode applications. Ellipsometry measurements were performed on the samples using a variable angle spectroscopic ellipsometer in the spectral range of 1–6 eV. The ordinary refractive index has a peculiarity at ~3.469 eV and the extraordinary component at 3.751 eV. These peculiarities in the line shape resemble the critical point M0 for the 2D case. The values of these critical points correspond to the direct band gap value.</p></div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":null,"pages":null},"PeriodicalIF":1.9000,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bulletin of Materials Science","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s12034-024-03197-1","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
This paper reports the synthesis, photoluminescence (PL) and spectroscopic ellipsometry (SE) studies of MnGa2S4 single crystal. Here, the study of photoluminescence properties of the compound in the visible and infrared regions and the calculation of colour coordinates were widely investigated. In the present work, previously observed optical transitions in various works were observed in PL spectra. A higher correlated colour temperature value of 4353 K suggests that this material is suitable for light-emitting diode applications. Ellipsometry measurements were performed on the samples using a variable angle spectroscopic ellipsometer in the spectral range of 1–6 eV. The ordinary refractive index has a peculiarity at ~3.469 eV and the extraordinary component at 3.751 eV. These peculiarities in the line shape resemble the critical point M0 for the 2D case. The values of these critical points correspond to the direct band gap value.
本文报告了 MnGa2S4 单晶的合成、光致发光（PL）和光谱椭偏仪（SE）研究。本文广泛研究了该化合物在可见光和红外区域的光致发光特性以及色坐标的计算。在本研究中，在聚光光谱中观察到了之前在各种作品中观察到的光学转变。4353 K 的较高相关色温值表明，这种材料适合发光二极管应用。使用变角光谱椭偏仪对样品进行了椭偏仪测量，光谱范围为 1-6 eV。普通折射率在 ~3.469 eV 处具有特殊性，而非普通折射率则在 3.751 eV 处。线形的这些特殊性类似于二维情况下的临界点 M0。这些临界点的值与直接带隙值相对应。
期刊介绍：
The Bulletin of Materials Science is a bi-monthly journal being published by the Indian Academy of Sciences in collaboration with the Materials Research Society of India and the Indian National Science Academy. The journal publishes original research articles, review articles and rapid communications in all areas of materials science. The journal also publishes from time to time important Conference Symposia/ Proceedings which are of interest to materials scientists. It has an International Advisory Editorial Board and an Editorial Committee. The Bulletin accords high importance to the quality of articles published and to keep at a minimum the processing time of papers submitted for publication.
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