{"title":"PVA/CdS-Ag 纳米复合材料:成分和紫外线辐射对光学、电学和结构特性的影响","authors":"Aditi Nain, Ekta Dhanda, R. Chahal, Sanjay Dahiya","doi":"10.1149/2162-8777/ad1c8b","DOIUrl":null,"url":null,"abstract":"\n PVA incorporated with different content of CdS-Ag nanostructures were prepared using a chemical reduction technique. Along with this these nanocomposites were exposed to UV radiated for different times. The X-ray spectra of PVA /CdS-Ag nanocomposites indicated the formation of CdS and Ag nanostructures within PVA. Changes in the band structure of nanocomposites with and without UV exposure were studied by UV-Visible spectroscopy. Absorbance and refractive index showed incremental increases with the concentration of nanostructures and time of exposure. In addition, the behaviour of different optical parameters such as E˳ and Ed was investigated. Field-emission scanning electron microscopy and energy-dispersive X-ray analysis showed microstructural modification occurring in the nanocomposites due to changes in the concentration of incorporated nanostructures and UV radiation. The influence of concentration and UV exposure on conductivity and dielectric parameters on PVA/CdS-Ag nanocomposites was studied.","PeriodicalId":504734,"journal":{"name":"ECS Journal of Solid State Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"PVA/CdS-Ag Nanocomposites: Effect of Composition and UV Radiation on Optical, Electrical and Structural Properties\",\"authors\":\"Aditi Nain, Ekta Dhanda, R. Chahal, Sanjay Dahiya\",\"doi\":\"10.1149/2162-8777/ad1c8b\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"\\n PVA incorporated with different content of CdS-Ag nanostructures were prepared using a chemical reduction technique. Along with this these nanocomposites were exposed to UV radiated for different times. The X-ray spectra of PVA /CdS-Ag nanocomposites indicated the formation of CdS and Ag nanostructures within PVA. Changes in the band structure of nanocomposites with and without UV exposure were studied by UV-Visible spectroscopy. Absorbance and refractive index showed incremental increases with the concentration of nanostructures and time of exposure. In addition, the behaviour of different optical parameters such as E˳ and Ed was investigated. Field-emission scanning electron microscopy and energy-dispersive X-ray analysis showed microstructural modification occurring in the nanocomposites due to changes in the concentration of incorporated nanostructures and UV radiation. The influence of concentration and UV exposure on conductivity and dielectric parameters on PVA/CdS-Ag nanocomposites was studied.\",\"PeriodicalId\":504734,\"journal\":{\"name\":\"ECS Journal of Solid State Science and Technology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-01-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ECS Journal of Solid State Science and Technology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1149/2162-8777/ad1c8b\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ECS Journal of Solid State Science and Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1149/2162-8777/ad1c8b","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
采用化学还原技术制备了含有不同含量 CdS-Ag 纳米结构的 PVA。同时,将这些纳米复合材料暴露在不同时间的紫外线辐射下。PVA /CdS-Ag 纳米复合材料的 X 射线光谱表明,在 PVA 中形成了 CdS 和 Ag 纳米结构。紫外-可见光谱法研究了纳米复合材料在紫外线照射和未照射时的带状结构变化。吸光率和折射率随着纳米结构浓度和暴露时间的增加而增加。此外,还研究了 E˳ 和 Ed 等不同光学参数的特性。场发射扫描电子显微镜和能量色散 X 射线分析表明,由于加入的纳米结构浓度和紫外线辐射的变化,纳米复合材料的微观结构发生了改变。研究了浓度和紫外线照射对 PVA/CdS-Ag 纳米复合材料电导率和介电参数的影响。
PVA/CdS-Ag Nanocomposites: Effect of Composition and UV Radiation on Optical, Electrical and Structural Properties
PVA incorporated with different content of CdS-Ag nanostructures were prepared using a chemical reduction technique. Along with this these nanocomposites were exposed to UV radiated for different times. The X-ray spectra of PVA /CdS-Ag nanocomposites indicated the formation of CdS and Ag nanostructures within PVA. Changes in the band structure of nanocomposites with and without UV exposure were studied by UV-Visible spectroscopy. Absorbance and refractive index showed incremental increases with the concentration of nanostructures and time of exposure. In addition, the behaviour of different optical parameters such as E˳ and Ed was investigated. Field-emission scanning electron microscopy and energy-dispersive X-ray analysis showed microstructural modification occurring in the nanocomposites due to changes in the concentration of incorporated nanostructures and UV radiation. The influence of concentration and UV exposure on conductivity and dielectric parameters on PVA/CdS-Ag nanocomposites was studied.