{"title":"PVA/ 氧化铁纳米复合薄膜的结构、热学和光学研究 PVA/ 氧化铁纳米复合薄膜的结构、热学和光学研究","authors":"M. Basit, M. Aslam, M. Ahmad, Z. A. Raza","doi":"10.1002/mawe.202300075","DOIUrl":null,"url":null,"abstract":"<p>The work reported here deals with fabricating iron oxide nanoparticles incorporated polyvinyl alcohol nanocomposite films via the solution-casting green route, characterized using various characterization techniques. X-ray diffraction analysis shows interaction of nanoparticles with the polyvinyl alcohol matrix, scanning electron microscopy shows surface morphology of crack-free films, energy dispersive spectroscopy indicates elemental purity, tensiometer analysis shows changing behavior of hydrophilic to hydrophobic, thermogravimetric analysis shows improved thermal stability, ultraviolet-visible spectroscopy shows tunable optical properties, and frequency response analysis shows improved electrical properties. A small incorporation (1 wt. %) of iron oxide nanoparticles has induced significant alternations in structural, wetting, thermal, optical, and electrical properties of the polyvinyl alcohol-based nanocomposite films. Results showed notable changes in the structural phases, water contact angle (39.5° to 97.7°), optical absorption edge (5.12 eV to 4.84 eV), indirect band gap (4.99 eV to 4.68 eV), direct bandgap (5.41 eV to 5.21 eV), and band tail (0.57 eV to 0.89 eV) from native polyvinyl alcohol to polyvinyl alcohol/iron oxide nanocomposite films. Enhancements were observed in refractive indices, optical conductivity, optical dielectric loss, thermal stability, dielectric constant, and dielectric loss on incorporating iron oxide nanoparticles into the polyvinyl alcohol matrix. The fabricated nanocomposite films might be a potential material for optoelectronic and microelectronics applications.</p>","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":null,"pages":null},"PeriodicalIF":1.2000,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Structural, thermal and optoelectrical study of PVA/iron oxide nanocomposite films\\n Strukturelle, thermische und optoelektrische Untersuchung von PVA/Eisenoxid-Nanoverbundwerkstofffilmen\",\"authors\":\"M. Basit, M. Aslam, M. Ahmad, Z. A. Raza\",\"doi\":\"10.1002/mawe.202300075\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The work reported here deals with fabricating iron oxide nanoparticles incorporated polyvinyl alcohol nanocomposite films via the solution-casting green route, characterized using various characterization techniques. X-ray diffraction analysis shows interaction of nanoparticles with the polyvinyl alcohol matrix, scanning electron microscopy shows surface morphology of crack-free films, energy dispersive spectroscopy indicates elemental purity, tensiometer analysis shows changing behavior of hydrophilic to hydrophobic, thermogravimetric analysis shows improved thermal stability, ultraviolet-visible spectroscopy shows tunable optical properties, and frequency response analysis shows improved electrical properties. A small incorporation (1 wt. %) of iron oxide nanoparticles has induced significant alternations in structural, wetting, thermal, optical, and electrical properties of the polyvinyl alcohol-based nanocomposite films. Results showed notable changes in the structural phases, water contact angle (39.5° to 97.7°), optical absorption edge (5.12 eV to 4.84 eV), indirect band gap (4.99 eV to 4.68 eV), direct bandgap (5.41 eV to 5.21 eV), and band tail (0.57 eV to 0.89 eV) from native polyvinyl alcohol to polyvinyl alcohol/iron oxide nanocomposite films. Enhancements were observed in refractive indices, optical conductivity, optical dielectric loss, thermal stability, dielectric constant, and dielectric loss on incorporating iron oxide nanoparticles into the polyvinyl alcohol matrix. 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引用次数: 0
摘要
本文报告的工作涉及通过溶液浇铸绿色工艺路线制造掺入氧化铁纳米粒子的聚乙烯醇纳米复合薄膜,并利用各种表征技术对其进行表征。X 射线衍射分析表明了纳米粒子与聚乙烯醇基体的相互作用,扫描电子显微镜显示了无裂纹薄膜的表面形态,能量色散光谱显示了元素纯度,张力计分析表明了亲水性向疏水性的转变,热重分析表明了热稳定性的改善,紫外可见光谱显示了可调的光学特性,频率响应分析表明了电学特性的改善。氧化铁纳米粒子的少量添加(1 wt %)使聚乙烯醇基纳米复合薄膜的结构、润湿、热、光学和电学特性发生了显著变化。结果显示,从原生聚乙烯醇到聚乙烯醇/氧化铁纳米复合薄膜,其结构相、水接触角(39.5° 到 97.7°)、光吸收边(5.12 eV 到 4.84 eV)、间接带隙(4.99 eV 到 4.68 eV)、直接带隙(5.41 eV 到 5.21 eV)和带尾(0.57 eV 到 0.89 eV)都发生了显著变化。在聚乙烯醇基体中加入氧化铁纳米粒子后,折射率、光导率、光学介电损耗、热稳定性、介电常数和介电损耗都有所提高。所制备的纳米复合薄膜可能是一种潜在的光电和微电子应用材料。
Structural, thermal and optoelectrical study of PVA/iron oxide nanocomposite films
Strukturelle, thermische und optoelektrische Untersuchung von PVA/Eisenoxid-Nanoverbundwerkstofffilmen
The work reported here deals with fabricating iron oxide nanoparticles incorporated polyvinyl alcohol nanocomposite films via the solution-casting green route, characterized using various characterization techniques. X-ray diffraction analysis shows interaction of nanoparticles with the polyvinyl alcohol matrix, scanning electron microscopy shows surface morphology of crack-free films, energy dispersive spectroscopy indicates elemental purity, tensiometer analysis shows changing behavior of hydrophilic to hydrophobic, thermogravimetric analysis shows improved thermal stability, ultraviolet-visible spectroscopy shows tunable optical properties, and frequency response analysis shows improved electrical properties. A small incorporation (1 wt. %) of iron oxide nanoparticles has induced significant alternations in structural, wetting, thermal, optical, and electrical properties of the polyvinyl alcohol-based nanocomposite films. Results showed notable changes in the structural phases, water contact angle (39.5° to 97.7°), optical absorption edge (5.12 eV to 4.84 eV), indirect band gap (4.99 eV to 4.68 eV), direct bandgap (5.41 eV to 5.21 eV), and band tail (0.57 eV to 0.89 eV) from native polyvinyl alcohol to polyvinyl alcohol/iron oxide nanocomposite films. Enhancements were observed in refractive indices, optical conductivity, optical dielectric loss, thermal stability, dielectric constant, and dielectric loss on incorporating iron oxide nanoparticles into the polyvinyl alcohol matrix. The fabricated nanocomposite films might be a potential material for optoelectronic and microelectronics applications.
期刊介绍:
Materialwissenschaft und Werkstofftechnik provides fundamental and practical information for those concerned with materials development, manufacture, and testing.
Both technical and economic aspects are taken into consideration in order to facilitate choice of the material that best suits the purpose at hand. Review articles summarize new developments and offer fresh insight into the various aspects of the discipline.
Recent results regarding material selection, use and testing are described in original articles, which also deal with failure treatment and investigation. Abstracts of new publications from other journals as well as lectures presented at meetings and reports about forthcoming events round off the journal.