Jithin Kuriakose , P. Karuppasamy , D. Joseph Daniel , P. Ramasamy
{"title":"用于非线性光学应用的高质量芘单晶的垂直布里奇曼生长和多面光学特性","authors":"Jithin Kuriakose , P. Karuppasamy , D. Joseph Daniel , P. Ramasamy","doi":"10.1016/j.mseb.2025.118643","DOIUrl":null,"url":null,"abstract":"<div><div>The high-quality pyrene single crystals were grown by the Vertical Bridgman Technique (VBT). The crystal structure was characterized using single-crystal X-ray diffraction (SCXRD) and powder X-ray diffraction (PXRD) techniques. High-resolution X-ray diffraction (HRXRD) studies of the pyrene single crystals demonstrated superior crystalline quality, with a sharp, symmetric rocking curve and a narrow full width at half maximum (FWHM) of 15.39 arcseconds. Optical transmittance measurements indicated over 85 % transparency in the 500–1100 nm wavelength range, with a lower cut-off at 400 nm. The optical band gap energy was determined to be 3.08 eV. Thermal analysis, including thermogravimetric analysis (TGA) and differential thermal analysis (DTA), revealed a melting point at 154 °C and provided insights into the material’s decomposition behaviour. Photoluminescence and X-ray induced luminescence were analyzed, and emission peaks were observed at 476 nm, 494 nm, and 498 nm, respectively. The functional groups present in the crystal were identified using Fourier Transform Infrared Spectroscopy (FTIR). Nonlinear optical properties were analyzed via the Z-scan technique, yielding values of 1.040 × 10<sup>−7</sup> esu for the third-order nonlinear susceptibility (χ3), 2.288 × 10<sup>−12</sup> m<sup>2</sup>/W for the nonlinear refractive index (n<sub>2</sub>), and 2.517 × 10<sup>−4</sup> m/W for the nonlinear absorption coefficient (β).These findings suggest that pyrene single crystals grown by the Bridgman method have significant potential for applications in nonlinear optics and high-energy (X-ray) detectors.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"322 ","pages":"Article 118643"},"PeriodicalIF":4.6000,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Vertical bridgman growth and multifaceted optical characterization of high-quality pyrene single crystals for nonlinear optical applications\",\"authors\":\"Jithin Kuriakose , P. Karuppasamy , D. Joseph Daniel , P. Ramasamy\",\"doi\":\"10.1016/j.mseb.2025.118643\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The high-quality pyrene single crystals were grown by the Vertical Bridgman Technique (VBT). The crystal structure was characterized using single-crystal X-ray diffraction (SCXRD) and powder X-ray diffraction (PXRD) techniques. High-resolution X-ray diffraction (HRXRD) studies of the pyrene single crystals demonstrated superior crystalline quality, with a sharp, symmetric rocking curve and a narrow full width at half maximum (FWHM) of 15.39 arcseconds. Optical transmittance measurements indicated over 85 % transparency in the 500–1100 nm wavelength range, with a lower cut-off at 400 nm. The optical band gap energy was determined to be 3.08 eV. Thermal analysis, including thermogravimetric analysis (TGA) and differential thermal analysis (DTA), revealed a melting point at 154 °C and provided insights into the material’s decomposition behaviour. Photoluminescence and X-ray induced luminescence were analyzed, and emission peaks were observed at 476 nm, 494 nm, and 498 nm, respectively. The functional groups present in the crystal were identified using Fourier Transform Infrared Spectroscopy (FTIR). Nonlinear optical properties were analyzed via the Z-scan technique, yielding values of 1.040 × 10<sup>−7</sup> esu for the third-order nonlinear susceptibility (χ3), 2.288 × 10<sup>−12</sup> m<sup>2</sup>/W for the nonlinear refractive index (n<sub>2</sub>), and 2.517 × 10<sup>−4</sup> m/W for the nonlinear absorption coefficient (β).These findings suggest that pyrene single crystals grown by the Bridgman method have significant potential for applications in nonlinear optics and high-energy (X-ray) detectors.</div></div>\",\"PeriodicalId\":18233,\"journal\":{\"name\":\"Materials Science and Engineering: B\",\"volume\":\"322 \",\"pages\":\"Article 118643\"},\"PeriodicalIF\":4.6000,\"publicationDate\":\"2025-07-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials Science and Engineering: B\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0921510725006671\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Science and Engineering: B","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0921510725006671","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Vertical bridgman growth and multifaceted optical characterization of high-quality pyrene single crystals for nonlinear optical applications
The high-quality pyrene single crystals were grown by the Vertical Bridgman Technique (VBT). The crystal structure was characterized using single-crystal X-ray diffraction (SCXRD) and powder X-ray diffraction (PXRD) techniques. High-resolution X-ray diffraction (HRXRD) studies of the pyrene single crystals demonstrated superior crystalline quality, with a sharp, symmetric rocking curve and a narrow full width at half maximum (FWHM) of 15.39 arcseconds. Optical transmittance measurements indicated over 85 % transparency in the 500–1100 nm wavelength range, with a lower cut-off at 400 nm. The optical band gap energy was determined to be 3.08 eV. Thermal analysis, including thermogravimetric analysis (TGA) and differential thermal analysis (DTA), revealed a melting point at 154 °C and provided insights into the material’s decomposition behaviour. Photoluminescence and X-ray induced luminescence were analyzed, and emission peaks were observed at 476 nm, 494 nm, and 498 nm, respectively. The functional groups present in the crystal were identified using Fourier Transform Infrared Spectroscopy (FTIR). Nonlinear optical properties were analyzed via the Z-scan technique, yielding values of 1.040 × 10−7 esu for the third-order nonlinear susceptibility (χ3), 2.288 × 10−12 m2/W for the nonlinear refractive index (n2), and 2.517 × 10−4 m/W for the nonlinear absorption coefficient (β).These findings suggest that pyrene single crystals grown by the Bridgman method have significant potential for applications in nonlinear optics and high-energy (X-ray) detectors.
期刊介绍:
The journal provides an international medium for the publication of theoretical and experimental studies and reviews related to the electronic, electrochemical, ionic, magnetic, optical, and biosensing properties of solid state materials in bulk, thin film and particulate forms. Papers dealing with synthesis, processing, characterization, structure, physical properties and computational aspects of nano-crystalline, crystalline, amorphous and glassy forms of ceramics, semiconductors, layered insertion compounds, low-dimensional compounds and systems, fast-ion conductors, polymers and dielectrics are viewed as suitable for publication. Articles focused on nano-structured aspects of these advanced solid-state materials will also be considered suitable.