{"title":"掺杂 Pb2+ 的 K2Al2B2O7 的合成与光致发光特性","authors":"İlhan Pekgözlü","doi":"10.1007/s10812-024-01766-0","DOIUrl":null,"url":null,"abstract":"<p>Ultraviolet-emitting phosphors with the formula K<sub>2</sub><sub>–x</sub>Pb<sub>x</sub>Al<sub>2</sub>B<sub>2</sub>O<sub>7</sub> (0.0025 ≤ x ≤ 0.03) were synthesized at 850°C for 6 h in air. The powder X-ray diffraction technique was used to analyze the phases of all prepared borates. The FTIR technique was used to examine the bond structure of K<sub>2</sub>Al<sub>2</sub>B<sub>2</sub>O<sub>7</sub>. At room temperature, a spectrofluorometer was used to examine the photoluminescence characteristics of the prepared phosphors. K<sub>2</sub>Al<sub>2</sub>B<sub>2</sub>O<sub>7</sub>:Pb<sup>2+</sup> was found to have emission and excitation bands at 373 and 271 nm, respectively. An extensive investigation was conducted on the correlation between emission intensity and Pb<sup>2+</sup> content for K<sub>2–x</sub>Pb<sub>x</sub>Al<sub>2</sub>B<sub>2</sub>O<sub>7</sub>. Consequently, 0.01 mol Pb<sup>2+</sup> was found to be the optimal concentration in K<sub>2</sub>Al<sub>2</sub>B<sub>2</sub>O<sub>7</sub>. Eventually, it was found that the Stokes shift of the prepared material K<sub>2</sub>Al<sub>2</sub>B<sub>2</sub>O<sub>7</sub>:Pb<sup>2+</sup> is 10,090 cm<sup>−1</sup> using the excitation band at 271 nm and the emission band at 373 nm. As a result of this investigation, a brand-new UVA radiation-emitting material has been established.</p>","PeriodicalId":609,"journal":{"name":"Journal of Applied Spectroscopy","volume":"91 3","pages":"645 - 649"},"PeriodicalIF":0.8000,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synthesis and Photoluminescence Properties of Pb2+-Doped K2Al2B2O7\",\"authors\":\"İlhan Pekgözlü\",\"doi\":\"10.1007/s10812-024-01766-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Ultraviolet-emitting phosphors with the formula K<sub>2</sub><sub>–x</sub>Pb<sub>x</sub>Al<sub>2</sub>B<sub>2</sub>O<sub>7</sub> (0.0025 ≤ x ≤ 0.03) were synthesized at 850°C for 6 h in air. The powder X-ray diffraction technique was used to analyze the phases of all prepared borates. The FTIR technique was used to examine the bond structure of K<sub>2</sub>Al<sub>2</sub>B<sub>2</sub>O<sub>7</sub>. At room temperature, a spectrofluorometer was used to examine the photoluminescence characteristics of the prepared phosphors. K<sub>2</sub>Al<sub>2</sub>B<sub>2</sub>O<sub>7</sub>:Pb<sup>2+</sup> was found to have emission and excitation bands at 373 and 271 nm, respectively. An extensive investigation was conducted on the correlation between emission intensity and Pb<sup>2+</sup> content for K<sub>2–x</sub>Pb<sub>x</sub>Al<sub>2</sub>B<sub>2</sub>O<sub>7</sub>. Consequently, 0.01 mol Pb<sup>2+</sup> was found to be the optimal concentration in K<sub>2</sub>Al<sub>2</sub>B<sub>2</sub>O<sub>7</sub>. Eventually, it was found that the Stokes shift of the prepared material K<sub>2</sub>Al<sub>2</sub>B<sub>2</sub>O<sub>7</sub>:Pb<sup>2+</sup> is 10,090 cm<sup>−1</sup> using the excitation band at 271 nm and the emission band at 373 nm. As a result of this investigation, a brand-new UVA radiation-emitting material has been established.</p>\",\"PeriodicalId\":609,\"journal\":{\"name\":\"Journal of Applied Spectroscopy\",\"volume\":\"91 3\",\"pages\":\"645 - 649\"},\"PeriodicalIF\":0.8000,\"publicationDate\":\"2024-07-06\",\"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/s10812-024-01766-0\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"SPECTROSCOPY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Applied Spectroscopy","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10812-024-01766-0","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"SPECTROSCOPY","Score":null,"Total":0}
Synthesis and Photoluminescence Properties of Pb2+-Doped K2Al2B2O7
Ultraviolet-emitting phosphors with the formula K2–xPbxAl2B2O7 (0.0025 ≤ x ≤ 0.03) were synthesized at 850°C for 6 h in air. The powder X-ray diffraction technique was used to analyze the phases of all prepared borates. The FTIR technique was used to examine the bond structure of K2Al2B2O7. At room temperature, a spectrofluorometer was used to examine the photoluminescence characteristics of the prepared phosphors. K2Al2B2O7:Pb2+ was found to have emission and excitation bands at 373 and 271 nm, respectively. An extensive investigation was conducted on the correlation between emission intensity and Pb2+ content for K2–xPbxAl2B2O7. Consequently, 0.01 mol Pb2+ was found to be the optimal concentration in K2Al2B2O7. Eventually, it was found that the Stokes shift of the prepared material K2Al2B2O7:Pb2+ is 10,090 cm−1 using the excitation band at 271 nm and the emission band at 373 nm. As a result of this investigation, a brand-new UVA radiation-emitting material has been established.
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.