{"title":"Near-infrared scintillation properties of Er-doped Ca3TaGa3Si2O14 single crystals grown by floating zone method","authors":"Ryosei Takahashi, Kai Okazaki, Daisuke Nakauchi, Takumi Kato, Noriaki Kawaguchi, Takayuki Yanagida","doi":"10.1016/j.optmat.2025.117064","DOIUrl":null,"url":null,"abstract":"<div><div>Er-doped Ca<sub>3</sub>TaGa<sub>3</sub>Si<sub>2</sub>O<sub>14</sub> (Er:CTGS) single crystals doped with different Er concentrations (0.5, 1, 2, and 5 %) were grown by the optical floating zone method. Their luminescence and scintillation performances were investigated. The prepared samples showed emission peaks and decay time constants due to electronic transitions of Er<sup>3+</sup> under both the visible light and X-ray irradiations. In the photoluminescence quantum yield measurements, the 0.5, 1, 2, and 5 % Er:CTGS samples respectively demonstrated 74.7, 78.0, 83.4, and 63.2 %. Good linear responses between X-ray exposure dose-rate and scintillation output were confirmed, and 2 % Er:CTGS showed the lower detection limit of 2.3 mGy/h.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"164 ","pages":"Article 117064"},"PeriodicalIF":4.2000,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optical Materials","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0925346725004240","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/4/15 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Er-doped Ca3TaGa3Si2O14 (Er:CTGS) single crystals doped with different Er concentrations (0.5, 1, 2, and 5 %) were grown by the optical floating zone method. Their luminescence and scintillation performances were investigated. The prepared samples showed emission peaks and decay time constants due to electronic transitions of Er3+ under both the visible light and X-ray irradiations. In the photoluminescence quantum yield measurements, the 0.5, 1, 2, and 5 % Er:CTGS samples respectively demonstrated 74.7, 78.0, 83.4, and 63.2 %. Good linear responses between X-ray exposure dose-rate and scintillation output were confirmed, and 2 % Er:CTGS showed the lower detection limit of 2.3 mGy/h.
期刊介绍：
Optical Materials has an open access mirror journal Optical Materials: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
The purpose of Optical Materials is to provide a means of communication and technology transfer between researchers who are interested in materials for potential device applications. The journal publishes original papers and review articles on the design, synthesis, characterisation and applications of optical materials.
OPTICAL MATERIALS focuses on:
• Optical Properties of Material Systems;
• The Materials Aspects of Optical Phenomena;
• The Materials Aspects of Devices and Applications.
Authors can submit separate research elements describing their data to Data in Brief and methods to Methods X.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
