A Comparative Investigation on the Structural, Optical and Electrical Properties of SiO2-Fe3O4 Core-Shell Nanostructures with Their Single Components
The SiO2-Fe3O4 core-shell nanostructures were synthesized by sol-gel chemistry. The morphological features of the nanostructures were examined by field emission scanning electron microscopy which revealed the core-shell nature of the nanoparticles. X-ray diffraction studies evidenced the formation o...
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| Veröffentlicht in: | Acta metallurgica sinica : English letters 2015-11, Vol.28 (11), p.1317-1325 |
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| creator | Bachan, Neena Asha, A. Jothi Jeyarani, W. Arun Kumar, D. Shyla, J. Merline |
| description | The SiO2-Fe3O4 core-shell nanostructures were synthesized by sol-gel chemistry. The morphological features of the nanostructures were examined by field emission scanning electron microscopy which revealed the core-shell nature of the nanoparticles. X-ray diffraction studies evidenced the formation of SiO2-Fe3O4 core-shell nanostructures with high degree of homogeneity. The elemental composition of the SiO2-Fe3O4 core-shell nanostructures was determined by energy-dispersive X-ray spectroscopy analysis. Fourier transform infrared spectroscopy showed the Si-O-Fe stretching vibrations. On analysis of the optical properties with UV-Vis spectra and Tauc＇s plot, it was found that the band gap of SiO2-Fe3O4 core-shell nanostructures diminished to 1.5 eV. Investigation of the electrical properties of the core-shell nanostructures using field-dependent conductivity measurements presented a significant increase in photoconductivity as compared to those of its single components, thereby rendering them as promising candidates for application as photo- electrodes in dye-sensitized solar cells. |
| doi_str_mv | 10.1007/s40195-015-0328-3 |
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Merline</creator><creatorcontrib>Bachan, Neena ; Asha, A. ; Jothi Jeyarani, W. ; Arun Kumar, D. ; Shyla, J. Merline</creatorcontrib><description>The SiO2-Fe3O4 core-shell nanostructures were synthesized by sol-gel chemistry. The morphological features of the nanostructures were examined by field emission scanning electron microscopy which revealed the core-shell nature of the nanoparticles. X-ray diffraction studies evidenced the formation of SiO2-Fe3O4 core-shell nanostructures with high degree of homogeneity. The elemental composition of the SiO2-Fe3O4 core-shell nanostructures was determined by energy-dispersive X-ray spectroscopy analysis. Fourier transform infrared spectroscopy showed the Si-O-Fe stretching vibrations. On analysis of the optical properties with UV-Vis spectra and Tauc＇s plot, it was found that the band gap of SiO2-Fe3O4 core-shell nanostructures diminished to 1.5 eV. Investigation of the electrical properties of the core-shell nanostructures using field-dependent conductivity measurements presented a significant increase in photoconductivity as compared to those of its single components, thereby rendering them as promising candidates for application as photo- electrodes in dye-sensitized solar cells.</description><identifier>ISSN: 1006-7191</identifier><identifier>EISSN: 2194-1289</identifier><identifier>DOI: 10.1007/s40195-015-0328-3</identifier><language>eng</language><publisher>Beijing: The Chinese Society for Metals</publisher><subject>Alcohol ; Characterization and Evaluation of Materials ; Chemical synthesis ; Chemistry and Materials Science ; Core-shell structure ; Corrosion and Coatings ; Dye-sensitized solar cells ; Electrical properties ; Field emission microscopy ; Fourier transforms ; Homogeneity ; Information storage ; Infrared analysis ; Infrared spectroscopy ; Iron oxides ; Materials Science ; Metal oxides ; Metallic Materials ; Morphology ; Nanoparticles ; Nanostructure ; Nanostructured materials ; Nanotechnology ; Optical properties ; Organometallic Chemistry ; Particle size ; Photoconductivity ; Silicon dioxide ; Sol-gel processes ; Spectroscopy/Spectrometry ; Tribology ; 傅里叶变换红外光谱 ; 光学特性 ; 成分 ; 染料敏化太阳能电池 ; 核壳结构 ; 电子显微镜观察 ; 电学性质 ; 纳米结构</subject><ispartof>Acta metallurgica sinica : English letters, 2015-11, Vol.28 (11), p.1317-1325</ispartof><rights>The Chinese Society for Metals and Springer-Verlag Berlin Heidelberg 2015</rights><rights>The Chinese Society for Metals and Springer-Verlag Berlin Heidelberg 2015.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c386t-e170fa45566800558ab4e03d469660fc98618437f07daa3463e6a66541f497e53</citedby><cites>FETCH-LOGICAL-c386t-e170fa45566800558ab4e03d469660fc98618437f07daa3463e6a66541f497e53</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/86672X/86672X.jpg</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s40195-015-0328-3$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/2932492440?pq-origsite=primo$$EHTML$$P50$$Gproquest$$H</linktohtml><link.rule.ids>314,780,784,21387,27923,27924,33743,41487,42556,43804,51318,64384,64388,72240</link.rule.ids></links><search><creatorcontrib>Bachan, Neena</creatorcontrib><creatorcontrib>Asha, A.</creatorcontrib><creatorcontrib>Jothi Jeyarani, W.</creatorcontrib><creatorcontrib>Arun Kumar, D.</creatorcontrib><creatorcontrib>Shyla, J. Merline</creatorcontrib><title>A Comparative Investigation on the Structural, Optical and Electrical Properties of SiO2-Fe3O4 Core-Shell Nanostructures with Their Single Components</title><title>Acta metallurgica sinica : English letters</title><addtitle>Acta Metall. Sin. (Engl. Lett.)</addtitle><addtitle>Acta Metallurgica Sinica（English Letters）</addtitle><description>The SiO2-Fe3O4 core-shell nanostructures were synthesized by sol-gel chemistry. The morphological features of the nanostructures were examined by field emission scanning electron microscopy which revealed the core-shell nature of the nanoparticles. X-ray diffraction studies evidenced the formation of SiO2-Fe3O4 core-shell nanostructures with high degree of homogeneity. The elemental composition of the SiO2-Fe3O4 core-shell nanostructures was determined by energy-dispersive X-ray spectroscopy analysis. Fourier transform infrared spectroscopy showed the Si-O-Fe stretching vibrations. On analysis of the optical properties with UV-Vis spectra and Tauc＇s plot, it was found that the band gap of SiO2-Fe3O4 core-shell nanostructures diminished to 1.5 eV. Investigation of the electrical properties of the core-shell nanostructures using field-dependent conductivity measurements presented a significant increase in photoconductivity as compared to those of its single components, thereby rendering them as promising candidates for application as photo- electrodes in dye-sensitized solar cells.</description><subject>Alcohol</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemical synthesis</subject><subject>Chemistry and Materials Science</subject><subject>Core-shell structure</subject><subject>Corrosion and Coatings</subject><subject>Dye-sensitized solar cells</subject><subject>Electrical properties</subject><subject>Field emission microscopy</subject><subject>Fourier transforms</subject><subject>Homogeneity</subject><subject>Information storage</subject><subject>Infrared analysis</subject><subject>Infrared spectroscopy</subject><subject>Iron oxides</subject><subject>Materials Science</subject><subject>Metal oxides</subject><subject>Metallic Materials</subject><subject>Morphology</subject><subject>Nanoparticles</subject><subject>Nanostructure</subject><subject>Nanostructured materials</subject><subject>Nanotechnology</subject><subject>Optical properties</subject><subject>Organometallic Chemistry</subject><subject>Particle size</subject><subject>Photoconductivity</subject><subject>Silicon dioxide</subject><subject>Sol-gel processes</subject><subject>Spectroscopy/Spectrometry</subject><subject>Tribology</subject><subject>傅里叶变换红外光谱</subject><subject>光学特性</subject><subject>成分</subject><subject>染料敏化太阳能电池</subject><subject>核壳结构</subject><subject>电子显微镜观察</subject><subject>电学性质</subject><subject>纳米结构</subject><issn>1006-7191</issn><issn>2194-1289</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp9kEtLAzEUhYMoWB8_wF3QrdG8JjNZSvEFYoXWdYjTO52RMRmTtOIP8f-a2qI7ISFc-M45uQehE0YvGKXlZZSU6YJQlq_gFRE7aMSZloTxSu-iUYYUKZlm--ggxtc8cVmUI_R1hcf-bbDBpm4F-N6tIKZukSfvcD6pBTxNYVmnZbD9OZ4Mqattj62b4-se6hR-xqfgBwipg4h9g6fdhJMbEBOZzQOQaQt9jx-t83FrlbmPLrV41kIXMu8WPfx8xDtwKR6hvcb2EY637yF6vrmeje_Iw-T2fnz1QGpRqUSAlbSxsiiUqigtisq-SKBiLpVWija1rhSrpCgbWs6tFVIJUFapQrJG6hIKcYjONr5D8O_LvLl59cvgcqThWnCpuZQ0U2xD1cHHGKAxQ-jebPg0jJp1-2bTvsntm3X7RmQN32hiZt0Cwp_zf6LTbVDr3eI9636TVF6xKjnn4hvhsZMZ</recordid><startdate>20151101</startdate><enddate>20151101</enddate><creator>Bachan, Neena</creator><creator>Asha, A.</creator><creator>Jothi Jeyarani, W.</creator><creator>Arun Kumar, D.</creator><creator>Shyla, J. 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Merline</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c386t-e170fa45566800558ab4e03d469660fc98618437f07daa3463e6a66541f497e53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Alcohol</topic><topic>Characterization and Evaluation of Materials</topic><topic>Chemical synthesis</topic><topic>Chemistry and Materials Science</topic><topic>Core-shell structure</topic><topic>Corrosion and Coatings</topic><topic>Dye-sensitized solar cells</topic><topic>Electrical properties</topic><topic>Field emission microscopy</topic><topic>Fourier transforms</topic><topic>Homogeneity</topic><topic>Information storage</topic><topic>Infrared analysis</topic><topic>Infrared spectroscopy</topic><topic>Iron oxides</topic><topic>Materials Science</topic><topic>Metal oxides</topic><topic>Metallic Materials</topic><topic>Morphology</topic><topic>Nanoparticles</topic><topic>Nanostructure</topic><topic>Nanostructured materials</topic><topic>Nanotechnology</topic><topic>Optical properties</topic><topic>Organometallic Chemistry</topic><topic>Particle size</topic><topic>Photoconductivity</topic><topic>Silicon dioxide</topic><topic>Sol-gel processes</topic><topic>Spectroscopy/Spectrometry</topic><topic>Tribology</topic><topic>傅里叶变换红外光谱</topic><topic>光学特性</topic><topic>成分</topic><topic>染料敏化太阳能电池</topic><topic>核壳结构</topic><topic>电子显微镜观察</topic><topic>电学性质</topic><topic>纳米结构</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bachan, Neena</creatorcontrib><creatorcontrib>Asha, A.</creatorcontrib><creatorcontrib>Jothi Jeyarani, W.</creatorcontrib><creatorcontrib>Arun Kumar, D.</creatorcontrib><creatorcontrib>Shyla, J. 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Merline</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A Comparative Investigation on the Structural, Optical and Electrical Properties of SiO2-Fe3O4 Core-Shell Nanostructures with Their Single Components</atitle><jtitle>Acta metallurgica sinica : English letters</jtitle><stitle>Acta Metall. Sin. (Engl. Lett.)</stitle><addtitle>Acta Metallurgica Sinica（English Letters）</addtitle><date>2015-11-01</date><risdate>2015</risdate><volume>28</volume><issue>11</issue><spage>1317</spage><epage>1325</epage><pages>1317-1325</pages><issn>1006-7191</issn><eissn>2194-1289</eissn><abstract>The SiO2-Fe3O4 core-shell nanostructures were synthesized by sol-gel chemistry. The morphological features of the nanostructures were examined by field emission scanning electron microscopy which revealed the core-shell nature of the nanoparticles. X-ray diffraction studies evidenced the formation of SiO2-Fe3O4 core-shell nanostructures with high degree of homogeneity. The elemental composition of the SiO2-Fe3O4 core-shell nanostructures was determined by energy-dispersive X-ray spectroscopy analysis. Fourier transform infrared spectroscopy showed the Si-O-Fe stretching vibrations. On analysis of the optical properties with UV-Vis spectra and Tauc＇s plot, it was found that the band gap of SiO2-Fe3O4 core-shell nanostructures diminished to 1.5 eV. Investigation of the electrical properties of the core-shell nanostructures using field-dependent conductivity measurements presented a significant increase in photoconductivity as compared to those of its single components, thereby rendering them as promising candidates for application as photo- electrodes in dye-sensitized solar cells.</abstract><cop>Beijing</cop><pub>The Chinese Society for Metals</pub><doi>10.1007/s40195-015-0328-3</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Alcohol Characterization and Evaluation of Materials Chemical synthesis Chemistry and Materials Science Core-shell structure Corrosion and Coatings Dye-sensitized solar cells Electrical properties Field emission microscopy Fourier transforms Homogeneity Information storage Infrared analysis Infrared spectroscopy Iron oxides Materials Science Metal oxides Metallic Materials Morphology Nanoparticles Nanostructure Nanostructured materials Nanotechnology Optical properties Organometallic Chemistry Particle size Photoconductivity Silicon dioxide Sol-gel processes Spectroscopy/Spectrometry Tribology 傅里叶变换红外光谱 光学特性 成分 染料敏化太阳能电池 核壳结构 电子显微镜观察 电学性质 纳米结构 |
| title | A Comparative Investigation on the Structural, Optical and Electrical Properties of SiO2-Fe3O4 Core-Shell Nanostructures with Their Single Components |
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