Photoluminescence and photoconductivity studies of ZnO nanoparticles prepared by solid state reaction method
In the present work, the effect of annealing temperature on the luminescence and photoconductivity properties of ZnO nanoparticles (NPs) has been investigated. The ZnO NPs have been prepared at low temperature by a simple one step solid state reaction method using ZnSO 4 ·7H 2 O as a starting precur...
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Veröffentlicht in: | Journal of materials science. Materials in electronics 2013-01, Vol.24 (1), p.125-134 |
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creator | Mishra, Sheo K. Srivastava, Rajneesh K. Prakash, S. G. |
description | In the present work, the effect of annealing temperature on the luminescence and photoconductivity properties of ZnO nanoparticles (NPs) has been investigated. The ZnO NPs have been prepared at low temperature by a simple one step solid state reaction method using ZnSO
4
·7H
2
O as a starting precursor. X-ray diffraction results show, the prepared samples have a hexagonal wurtzite structure of ZnO NPs. FE-SEM reveals that the prepared ZnO nanoparticles have perfect spherical shape with little agglomeration. UV–visible absorption spectrum of as-prepared ZnO sample shows an absorbance peak at ~372 nm (~3.32 eV), which is blue shifted as compared to bulk ZnO (~386 nm). The annealed sample exhibits red shift of absorption peak. The photoluminescence spectra of as-prepared sample as well as annealed samples show one emission peak in UV region, and violet, blue, blue-green and green emissions in visible region. The sample annealed at 650 °C results in a significant reduction in luminescence as compared to that of the sample annealed at 450 °C. The photoconductivity properties such as voltage dependence of photocurrent, growth and decay of photocurrent as well as wavelength dependence of photocurrent have been studied in detail. |
doi_str_mv | 10.1007/s10854-012-0950-z |
format | Article |
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4
·7H
2
O as a starting precursor. X-ray diffraction results show, the prepared samples have a hexagonal wurtzite structure of ZnO NPs. FE-SEM reveals that the prepared ZnO nanoparticles have perfect spherical shape with little agglomeration. UV–visible absorption spectrum of as-prepared ZnO sample shows an absorbance peak at ~372 nm (~3.32 eV), which is blue shifted as compared to bulk ZnO (~386 nm). The annealed sample exhibits red shift of absorption peak. The photoluminescence spectra of as-prepared sample as well as annealed samples show one emission peak in UV region, and violet, blue, blue-green and green emissions in visible region. The sample annealed at 650 °C results in a significant reduction in luminescence as compared to that of the sample annealed at 450 °C. The photoconductivity properties such as voltage dependence of photocurrent, growth and decay of photocurrent as well as wavelength dependence of photocurrent have been studied in detail.</description><identifier>ISSN: 0957-4522</identifier><identifier>EISSN: 1573-482X</identifier><identifier>DOI: 10.1007/s10854-012-0950-z</identifier><language>eng</language><publisher>Boston: Springer US</publisher><subject>Annealing ; Characterization and Evaluation of Materials ; Chemistry and Materials Science ; Luminescence ; Materials Science ; Nanoparticles ; Optical and Electronic Materials ; Photoconductivity ; Photocurrent ; Photoelectric effect ; Solid state ; Zinc oxide</subject><ispartof>Journal of materials science. Materials in electronics, 2013-01, Vol.24 (1), p.125-134</ispartof><rights>Springer Science+Business Media New York 2012</rights><rights>Springer Science+Business Media New York 2013</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c415t-63e5617ac1fe479e28c75954a8d9aa9de56b76d60b3a800dc7a56518e1c2ed453</citedby><cites>FETCH-LOGICAL-c415t-63e5617ac1fe479e28c75954a8d9aa9de56b76d60b3a800dc7a56518e1c2ed453</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10854-012-0950-z$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10854-012-0950-z$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Mishra, Sheo K.</creatorcontrib><creatorcontrib>Srivastava, Rajneesh K.</creatorcontrib><creatorcontrib>Prakash, S. G.</creatorcontrib><title>Photoluminescence and photoconductivity studies of ZnO nanoparticles prepared by solid state reaction method</title><title>Journal of materials science. Materials in electronics</title><addtitle>J Mater Sci: Mater Electron</addtitle><description>In the present work, the effect of annealing temperature on the luminescence and photoconductivity properties of ZnO nanoparticles (NPs) has been investigated. The ZnO NPs have been prepared at low temperature by a simple one step solid state reaction method using ZnSO
4
·7H
2
O as a starting precursor. X-ray diffraction results show, the prepared samples have a hexagonal wurtzite structure of ZnO NPs. FE-SEM reveals that the prepared ZnO nanoparticles have perfect spherical shape with little agglomeration. UV–visible absorption spectrum of as-prepared ZnO sample shows an absorbance peak at ~372 nm (~3.32 eV), which is blue shifted as compared to bulk ZnO (~386 nm). The annealed sample exhibits red shift of absorption peak. The photoluminescence spectra of as-prepared sample as well as annealed samples show one emission peak in UV region, and violet, blue, blue-green and green emissions in visible region. The sample annealed at 650 °C results in a significant reduction in luminescence as compared to that of the sample annealed at 450 °C. The photoconductivity properties such as voltage dependence of photocurrent, growth and decay of photocurrent as well as wavelength dependence of photocurrent have been studied in detail.</description><subject>Annealing</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry and Materials Science</subject><subject>Luminescence</subject><subject>Materials Science</subject><subject>Nanoparticles</subject><subject>Optical and Electronic Materials</subject><subject>Photoconductivity</subject><subject>Photocurrent</subject><subject>Photoelectric effect</subject><subject>Solid state</subject><subject>Zinc oxide</subject><issn>0957-4522</issn><issn>1573-482X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp1kE1LAzEQhoMoWD9-gLeAFy-rSXaT7B6l-AWFelAQLyFNZu2WbbImWaH99abUgwiehnnneYeZF6ELSq4pIfImUlLzqiCUFaThpNgeoAnlsiyqmr0dokkWZVFxxo7RSYwrQoioynqC-uelT74f152DaMAZwNpZPOxU450dTeq-urTBMY22g4h9i9_dHDvt_KBD6kyfxSFAbsDiRQZ939mM6wQ4gM5-7_Aa0tLbM3TU6j7C-U89Ra_3dy_Tx2I2f3ia3s4KU1GeClECF1RqQ1uoZAOsNpI3vNK1bbRubJ4upLCCLEpdE2KN1FxwWgM1DGzFy1N0td87BP85Qkxq3eXn-l478GNUtKRciJJJkdHLP-jKj8Hl6xRlQkhBRcMyRfeUCT7GAK0aQrfWYaMoUbv81T5_lfNXu_zVNnvY3hMz6z4g_Nr8r-kbN8uK1g</recordid><startdate>20130101</startdate><enddate>20130101</enddate><creator>Mishra, Sheo K.</creator><creator>Srivastava, Rajneesh K.</creator><creator>Prakash, S. G.</creator><general>Springer US</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>F28</scope><scope>FR3</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>L7M</scope><scope>P5Z</scope><scope>P62</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>S0W</scope></search><sort><creationdate>20130101</creationdate><title>Photoluminescence and photoconductivity studies of ZnO nanoparticles prepared by solid state reaction method</title><author>Mishra, Sheo K. ; Srivastava, Rajneesh K. ; Prakash, S. G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c415t-63e5617ac1fe479e28c75954a8d9aa9de56b76d60b3a800dc7a56518e1c2ed453</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Annealing</topic><topic>Characterization and Evaluation of Materials</topic><topic>Chemistry and Materials Science</topic><topic>Luminescence</topic><topic>Materials Science</topic><topic>Nanoparticles</topic><topic>Optical and Electronic Materials</topic><topic>Photoconductivity</topic><topic>Photocurrent</topic><topic>Photoelectric effect</topic><topic>Solid state</topic><topic>Zinc oxide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mishra, Sheo K.</creatorcontrib><creatorcontrib>Srivastava, Rajneesh K.</creatorcontrib><creatorcontrib>Prakash, S. 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Materials in electronics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mishra, Sheo K.</au><au>Srivastava, Rajneesh K.</au><au>Prakash, S. G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Photoluminescence and photoconductivity studies of ZnO nanoparticles prepared by solid state reaction method</atitle><jtitle>Journal of materials science. Materials in electronics</jtitle><stitle>J Mater Sci: Mater Electron</stitle><date>2013-01-01</date><risdate>2013</risdate><volume>24</volume><issue>1</issue><spage>125</spage><epage>134</epage><pages>125-134</pages><issn>0957-4522</issn><eissn>1573-482X</eissn><abstract>In the present work, the effect of annealing temperature on the luminescence and photoconductivity properties of ZnO nanoparticles (NPs) has been investigated. The ZnO NPs have been prepared at low temperature by a simple one step solid state reaction method using ZnSO
4
·7H
2
O as a starting precursor. X-ray diffraction results show, the prepared samples have a hexagonal wurtzite structure of ZnO NPs. FE-SEM reveals that the prepared ZnO nanoparticles have perfect spherical shape with little agglomeration. UV–visible absorption spectrum of as-prepared ZnO sample shows an absorbance peak at ~372 nm (~3.32 eV), which is blue shifted as compared to bulk ZnO (~386 nm). The annealed sample exhibits red shift of absorption peak. The photoluminescence spectra of as-prepared sample as well as annealed samples show one emission peak in UV region, and violet, blue, blue-green and green emissions in visible region. The sample annealed at 650 °C results in a significant reduction in luminescence as compared to that of the sample annealed at 450 °C. The photoconductivity properties such as voltage dependence of photocurrent, growth and decay of photocurrent as well as wavelength dependence of photocurrent have been studied in detail.</abstract><cop>Boston</cop><pub>Springer US</pub><doi>10.1007/s10854-012-0950-z</doi><tpages>10</tpages></addata></record> |
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subjects | Annealing Characterization and Evaluation of Materials Chemistry and Materials Science Luminescence Materials Science Nanoparticles Optical and Electronic Materials Photoconductivity Photocurrent Photoelectric effect Solid state Zinc oxide |
title | Photoluminescence and photoconductivity studies of ZnO nanoparticles prepared by solid state reaction method |
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