M. I. Rakhmanova, K. A. Kokh, N. G. Kononova, A. B. Kuznetsov
{"title":"Crystal Growth and Luminescence Properties of TbGa3(BO3)4 Crystals","authors":"M. I. Rakhmanova, K. A. Kokh, N. G. Kononova, A. B. Kuznetsov","doi":"10.1134/s0022476624040061","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>TbGa<sub>3</sub>(BO<sub>3</sub>)<sub>4</sub> crystals were grown using the Bi<sub>2</sub>Mo<sub>3</sub>O<sub>12</sub>:B<sub>2</sub>O<sub>3</sub>:Tb<sub>2</sub>O<sub>3</sub> flux, which decreases contamination of Bi in the resulting crystal. The produced compound crystallizes in the <i>R</i>32 space group with unit cell parameters: <i>a</i> = 9.4512(4) Å, <i>c</i> = 7.4532(2) Å. A strong green emission of the luminescence is primarily dominated by the <sup>5</sup><i>D</i><sub>4</sub> to <sup>7</sup><i>F</i><sub>5</sub> transition in Tb<sup>3+</sup>. Annealing these crystals in a hydrogen atmosphere at 800 °C causes a reduction in the luminescence efficiency. On the other hand, annealing in air results in the increment of QY up to the value of 38%.</p>","PeriodicalId":668,"journal":{"name":"Journal of Structural Chemistry","volume":null,"pages":null},"PeriodicalIF":1.2000,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Structural Chemistry","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1134/s0022476624040061","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 0
Abstract
TbGa3(BO3)4 crystals were grown using the Bi2Mo3O12:B2O3:Tb2O3 flux, which decreases contamination of Bi in the resulting crystal. The produced compound crystallizes in the R32 space group with unit cell parameters: a = 9.4512(4) Å, c = 7.4532(2) Å. A strong green emission of the luminescence is primarily dominated by the 5D4 to 7F5 transition in Tb3+. Annealing these crystals in a hydrogen atmosphere at 800 °C causes a reduction in the luminescence efficiency. On the other hand, annealing in air results in the increment of QY up to the value of 38%.
期刊介绍：
Journal is an interdisciplinary publication covering all aspects of structural chemistry, including the theory of molecular structure and chemical bond; the use of physical methods to study the electronic and spatial structure of chemical species; structural features of liquids, solutions, surfaces, supramolecular systems, nano- and solid materials; and the crystal structure of solids.
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