{"title":"Photoluminescence Properties of Novel BaLiZn3(BO3)3:RE (RE = Sm3+, Tb3+, Dy3+, and Pb2+) Blue, Green, Orange-Red Emitting Phosphors for White Light Emitting Diodes","authors":"E. Yildiz, E. Erdoğmuş, G. Annadurai","doi":"10.1007/s10812-024-01793-x","DOIUrl":null,"url":null,"abstract":"<p>A new class of BaLiZn<sub>3</sub>(BO<sub>3</sub>)<sub>3</sub>:RE (RE = Sm<sup>3+</sup>, Tb<sup>3+</sup>, Dy<sup>3+</sup>, and Pb<sup>2+</sup>) phosphors were synthesized with a solid- state reaction method. The minor concentrations of various rare earth (Tb<sup>3+</sup>, Dy<sup>3+</sup>, and Sm<sup>3+</sup>) ions and transition metal (Pb<sup>2+</sup>) ions activated in the BaLiZn<sub>3</sub>(BO<sub>3</sub>) host matrix were characterized by using X-ray diffraction (XRD), scanning electron microscopy (SEM), and photoluminescence spectroscopy. The XRD results of BaLiZn<sub>3</sub>(BO<sub>3</sub>)3:RE (RE = Sm<sup>3+</sup>, Tb<sup>3+</sup>, Dy<sup>3+</sup>, and Pb<sup>2+</sup>) phosphors confirmed that all the samples have a monoclinic phase. SEM studies revealed that the morphology of BaLiZn<sub>3</sub>(BO<sub>3</sub>)<sub>3</sub>:RE (RE = Sm<sup>3+</sup>, Tb<sup>3+</sup>, Dy<sup>3+</sup>, and Pb<sup>2+</sup>) phosphors was irregular. The photoluminescence emission and excitation spectra show that these phosphors can be effectively excited by near-ultraviolet light-emitting diodes (n-UV), and they all exhibit an efficient orange-red (Sm<sup>3+</sup>, <sup>4</sup><i>G</i><sub>5/2</sub> → <sup>6</sup><i>H</i><sub>7/2</sub>), green (Tb<sup>3+</sup>, <sup>5</sup><i>D</i><sub>4</sub> → <sup>7</sup><i>F</i><sub>5</sub>), yellow (Dy<sup>3+</sup>, <sup>4</sup><i>F</i><sub>9/2</sub> → <sup>6</sup><i>H</i><sub>13/2</sub>), and blue (Pb<sup>2+</sup>, <sup>3</sup><i>P</i><sub>1</sub> → <sup>1</sup><i>S</i><sub>0</sub>) emission. All of the above results confirmed that the obtained phosphors could be a potential candidate for n-UV-excited WLEDs.</p>","PeriodicalId":609,"journal":{"name":"Journal of Applied Spectroscopy","volume":null,"pages":null},"PeriodicalIF":0.8000,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Applied Spectroscopy","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10812-024-01793-x","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"SPECTROSCOPY","Score":null,"Total":0}
引用次数: 0
Abstract
A new class of BaLiZn3(BO3)3:RE (RE = Sm3+, Tb3+, Dy3+, and Pb2+) phosphors were synthesized with a solid- state reaction method. The minor concentrations of various rare earth (Tb3+, Dy3+, and Sm3+) ions and transition metal (Pb2+) ions activated in the BaLiZn3(BO3) host matrix were characterized by using X-ray diffraction (XRD), scanning electron microscopy (SEM), and photoluminescence spectroscopy. The XRD results of BaLiZn3(BO3)3:RE (RE = Sm3+, Tb3+, Dy3+, and Pb2+) phosphors confirmed that all the samples have a monoclinic phase. SEM studies revealed that the morphology of BaLiZn3(BO3)3:RE (RE = Sm3+, Tb3+, Dy3+, and Pb2+) phosphors was irregular. The photoluminescence emission and excitation spectra show that these phosphors can be effectively excited by near-ultraviolet light-emitting diodes (n-UV), and they all exhibit an efficient orange-red (Sm3+, 4G5/2 → 6H7/2), green (Tb3+, 5D4 → 7F5), yellow (Dy3+, 4F9/2 → 6H13/2), and blue (Pb2+, 3P1 → 1S0) emission. All of the above results confirmed that the obtained phosphors could be a potential candidate for n-UV-excited WLEDs.
期刊介绍:
Journal of Applied Spectroscopy reports on many key applications of spectroscopy in chemistry, physics, metallurgy, and biology. An increasing number of papers focus on the theory of lasers, as well as the tremendous potential for the practical applications of lasers in numerous fields and industries.