Effect of annealing conditions on particle size, magnetic and optical properties of Gd2O3 nanoparticles
Gadolinium oxide (Gd2O3) nanoparticles were successfully synthesized by sol-gel method under different annealing conditions for constant reaction time. Even though the reactions were carried out at different annealing temperatures, XRD confirmed the formation of cubic phase Gd2O3 for all samples wit...
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| creator | Mukesh, M. Thejas, K. K. Akshay, V. R. Arun, B. Vasundhara, M. |
| description | Gadolinium oxide (Gd2O3) nanoparticles were successfully synthesized by sol-gel method under different annealing conditions for constant reaction time. Even though the reactions were carried out at different annealing temperatures, XRD confirmed the formation of cubic phase Gd2O3 for all samples with an increase in the crystallite size and enhancement in the crystalline nature with the increase in annealing temperatures. UV-Visible absorption and Photoluminescence spectra suggest that the band gap slightly decreases with the increase in annealing temperatures. X-ray photoelectron spectroscopy results reveal the presence of oxygen defects at the oxygen site in Gd2O3 nanoparticles. Field variation of magnetization curves measured at room temperature suggests the paramagnetic behavior with a slight coercivity which is observed for all the samples and the magnetic behavior is unaltered with the annealing temperatures. |
| doi_str_mv | 10.1063/1.5130301 |
| format | Conference Proceeding |
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K. ; Akshay, V. R. ; Arun, B. ; Vasundhara, M.</creator><contributor>Joseph, Joshy ; Damodaran, Sudheesh Vilasini ; Sadasivuni, Kishor Kumar ; Kurian, Joji ; Thomas, Deepu ; Joseph, Deepu ; Tom, Emmanuel</contributor><creatorcontrib>Mukesh, M. ; Thejas, K. K. ; Akshay, V. R. ; Arun, B. ; Vasundhara, M. ; Joseph, Joshy ; Damodaran, Sudheesh Vilasini ; Sadasivuni, Kishor Kumar ; Kurian, Joji ; Thomas, Deepu ; Joseph, Deepu ; Tom, Emmanuel</creatorcontrib><description>Gadolinium oxide (Gd2O3) nanoparticles were successfully synthesized by sol-gel method under different annealing conditions for constant reaction time. Even though the reactions were carried out at different annealing temperatures, XRD confirmed the formation of cubic phase Gd2O3 for all samples with an increase in the crystallite size and enhancement in the crystalline nature with the increase in annealing temperatures. UV-Visible absorption and Photoluminescence spectra suggest that the band gap slightly decreases with the increase in annealing temperatures. X-ray photoelectron spectroscopy results reveal the presence of oxygen defects at the oxygen site in Gd2O3 nanoparticles. Field variation of magnetization curves measured at room temperature suggests the paramagnetic behavior with a slight coercivity which is observed for all the samples and the magnetic behavior is unaltered with the annealing temperatures.</description><identifier>ISSN: 0094-243X</identifier><identifier>EISSN: 1551-7616</identifier><identifier>DOI: 10.1063/1.5130301</identifier><identifier>CODEN: APCPCS</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Annealing ; Coercivity ; Crystal defects ; Crystallites ; Gadolinium ; Gadolinium oxide ; Gadolinium oxides ; Magnetic properties ; Magnetization curves ; Nanoparticles ; Optical properties ; Photoelectrons ; Photoluminescence ; Reaction time ; Sol-gel processes ; Spectrum analysis</subject><ispartof>AIP conference proceedings, 2019, Vol.2162 (1)</ispartof><rights>Author(s)</rights><rights>2019 Author(s). Published by AIP Publishing.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c293t-bc6f2c28c356a32ca245a5b2135890b4abc79382d456dd0276b0f353e6085b7b3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://pubs.aip.org/acp/article-lookup/doi/10.1063/1.5130301$$EHTML$$P50$$Gscitation$$H</linktohtml><link.rule.ids>309,310,314,780,784,789,790,794,4512,23930,23931,25140,27924,27925,76384</link.rule.ids></links><search><contributor>Joseph, Joshy</contributor><contributor>Damodaran, Sudheesh Vilasini</contributor><contributor>Sadasivuni, Kishor Kumar</contributor><contributor>Kurian, Joji</contributor><contributor>Thomas, Deepu</contributor><contributor>Joseph, Deepu</contributor><contributor>Tom, Emmanuel</contributor><creatorcontrib>Mukesh, M.</creatorcontrib><creatorcontrib>Thejas, K. K.</creatorcontrib><creatorcontrib>Akshay, V. R.</creatorcontrib><creatorcontrib>Arun, B.</creatorcontrib><creatorcontrib>Vasundhara, M.</creatorcontrib><title>Effect of annealing conditions on particle size, magnetic and optical properties of Gd2O3 nanoparticles</title><title>AIP conference proceedings</title><description>Gadolinium oxide (Gd2O3) nanoparticles were successfully synthesized by sol-gel method under different annealing conditions for constant reaction time. Even though the reactions were carried out at different annealing temperatures, XRD confirmed the formation of cubic phase Gd2O3 for all samples with an increase in the crystallite size and enhancement in the crystalline nature with the increase in annealing temperatures. UV-Visible absorption and Photoluminescence spectra suggest that the band gap slightly decreases with the increase in annealing temperatures. X-ray photoelectron spectroscopy results reveal the presence of oxygen defects at the oxygen site in Gd2O3 nanoparticles. Field variation of magnetization curves measured at room temperature suggests the paramagnetic behavior with a slight coercivity which is observed for all the samples and the magnetic behavior is unaltered with the annealing temperatures.</description><subject>Annealing</subject><subject>Coercivity</subject><subject>Crystal defects</subject><subject>Crystallites</subject><subject>Gadolinium</subject><subject>Gadolinium oxide</subject><subject>Gadolinium oxides</subject><subject>Magnetic properties</subject><subject>Magnetization curves</subject><subject>Nanoparticles</subject><subject>Optical properties</subject><subject>Photoelectrons</subject><subject>Photoluminescence</subject><subject>Reaction time</subject><subject>Sol-gel processes</subject><subject>Spectrum analysis</subject><issn>0094-243X</issn><issn>1551-7616</issn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2019</creationdate><recordtype>conference_proceeding</recordtype><recordid>eNp9kE9LAzEQxYMoWP8c_AYBb-LWSWaT3T1KqVUo9KLgLWSzSUnZJutmK-ind0sr3jzNMPzem5lHyA2DKQOJD2wqGAICOyETJgTLCsnkKZkAVHnGc3w_JxcpbQB4VRTlhKznzlkz0OioDsHq1oc1NTE0fvAxJBoD7XQ_eNNamvy3vadbvQ52HIx8Q2M3drqlXR87O2I27Z0WDV8hDTrEX226ImdOt8leH-sleXuav86es-Vq8TJ7XGaGVzhktZGOG14aFFIjN5rnQouaMxRlBXWua1NUWPImF7JpgBeyBocCrYRS1EWNl-T24Dte9LGzaVCbuOvDuFJxZAAMGMqRujtQyfhB7z9VXe-3uv9Sn7FXTB1DVF3j_oMZqH3qfwL8AV2Oc40</recordid><startdate>20191029</startdate><enddate>20191029</enddate><creator>Mukesh, M.</creator><creator>Thejas, K. K.</creator><creator>Akshay, V. R.</creator><creator>Arun, B.</creator><creator>Vasundhara, M.</creator><general>American Institute of Physics</general><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20191029</creationdate><title>Effect of annealing conditions on particle size, magnetic and optical properties of Gd2O3 nanoparticles</title><author>Mukesh, M. ; Thejas, K. K. ; Akshay, V. R. ; Arun, B. ; Vasundhara, M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c293t-bc6f2c28c356a32ca245a5b2135890b4abc79382d456dd0276b0f353e6085b7b3</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Annealing</topic><topic>Coercivity</topic><topic>Crystal defects</topic><topic>Crystallites</topic><topic>Gadolinium</topic><topic>Gadolinium oxide</topic><topic>Gadolinium oxides</topic><topic>Magnetic properties</topic><topic>Magnetization curves</topic><topic>Nanoparticles</topic><topic>Optical properties</topic><topic>Photoelectrons</topic><topic>Photoluminescence</topic><topic>Reaction time</topic><topic>Sol-gel processes</topic><topic>Spectrum analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mukesh, M.</creatorcontrib><creatorcontrib>Thejas, K. K.</creatorcontrib><creatorcontrib>Akshay, V. R.</creatorcontrib><creatorcontrib>Arun, B.</creatorcontrib><creatorcontrib>Vasundhara, M.</creatorcontrib><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mukesh, M.</au><au>Thejas, K. K.</au><au>Akshay, V. R.</au><au>Arun, B.</au><au>Vasundhara, M.</au><au>Joseph, Joshy</au><au>Damodaran, Sudheesh Vilasini</au><au>Sadasivuni, Kishor Kumar</au><au>Kurian, Joji</au><au>Thomas, Deepu</au><au>Joseph, Deepu</au><au>Tom, Emmanuel</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Effect of annealing conditions on particle size, magnetic and optical properties of Gd2O3 nanoparticles</atitle><btitle>AIP conference proceedings</btitle><date>2019-10-29</date><risdate>2019</risdate><volume>2162</volume><issue>1</issue><issn>0094-243X</issn><eissn>1551-7616</eissn><coden>APCPCS</coden><abstract>Gadolinium oxide (Gd2O3) nanoparticles were successfully synthesized by sol-gel method under different annealing conditions for constant reaction time. Even though the reactions were carried out at different annealing temperatures, XRD confirmed the formation of cubic phase Gd2O3 for all samples with an increase in the crystallite size and enhancement in the crystalline nature with the increase in annealing temperatures. UV-Visible absorption and Photoluminescence spectra suggest that the band gap slightly decreases with the increase in annealing temperatures. X-ray photoelectron spectroscopy results reveal the presence of oxygen defects at the oxygen site in Gd2O3 nanoparticles. Field variation of magnetization curves measured at room temperature suggests the paramagnetic behavior with a slight coercivity which is observed for all the samples and the magnetic behavior is unaltered with the annealing temperatures.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.5130301</doi><tpages>6</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0094-243X |
| ispartof | AIP conference proceedings, 2019, Vol.2162 (1) |
| issn | 0094-243X 1551-7616 |
| language | eng |
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| source | AIP Journals Complete |
| subjects | Annealing Coercivity Crystal defects Crystallites Gadolinium Gadolinium oxide Gadolinium oxides Magnetic properties Magnetization curves Nanoparticles Optical properties Photoelectrons Photoluminescence Reaction time Sol-gel processes Spectrum analysis |
| title | Effect of annealing conditions on particle size, magnetic and optical properties of Gd2O3 nanoparticles |
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