Photoluminescence and photocatalytic properties of rhombohedral CuGaO2 nanoplates
Rhombohedral phase CuGaO 2 nanoplates with a diameter of about 10 μm were synthesized via low temperature hydrothermal method. Room temperature and low temperature photoluminescence of the obtained CuGaO 2 nanoplates were characterized. CuGaO 2 nanoplates exhibited blue emission at room temperature...
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| Veröffentlicht in: | Scientific reports 2016-02, Vol.6 (1), p.21135-21135, Article 21135 |
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| creator | Shi, Linlin Wang, Fei Wang, Yunpeng Wang, Dengkui Zhao, Bin Zhang, Ligong Zhao, Dongxu Shen, Dezhen |
| description | Rhombohedral phase CuGaO
2
nanoplates with a diameter of about 10 μm were synthesized via low temperature hydrothermal method. Room temperature and low temperature photoluminescence of the obtained CuGaO
2
nanoplates were characterized. CuGaO
2
nanoplates exhibited blue emission at room temperature and free exciton emission were appeared at low temperature. The blue emission is originated from defects such as Cu vacancies, which is the possible origin of p-type conductivity. The appearance of free exciton emission can demonstrate the direct bandgap transition behavior of CuGaO
2
nanoplates. The as-prepared p-type CuGaO
2
nanoplates were further decorated by n-type ZnO nanoparticles via calcination method to fabricate p-n junction nanocomposites. The nanocomposites exhibited enhanced photocatalytic activity which can be ascribed to the effective separation of photogenerated carriers by the internal electrostatic field in the p-n junction region and the enhanced light absorption properties resulted from sub-bandgap absorption effect of p-n junction. This work has offered a new insight into the design of p-n junction devices using p-type CuGaO
2
nanoplates. |
| doi_str_mv | 10.1038/srep21135 |
| format | Article |
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2
nanoplates with a diameter of about 10 μm were synthesized via low temperature hydrothermal method. Room temperature and low temperature photoluminescence of the obtained CuGaO
2
nanoplates were characterized. CuGaO
2
nanoplates exhibited blue emission at room temperature and free exciton emission were appeared at low temperature. The blue emission is originated from defects such as Cu vacancies, which is the possible origin of p-type conductivity. The appearance of free exciton emission can demonstrate the direct bandgap transition behavior of CuGaO
2
nanoplates. The as-prepared p-type CuGaO
2
nanoplates were further decorated by n-type ZnO nanoparticles via calcination method to fabricate p-n junction nanocomposites. The nanocomposites exhibited enhanced photocatalytic activity which can be ascribed to the effective separation of photogenerated carriers by the internal electrostatic field in the p-n junction region and the enhanced light absorption properties resulted from sub-bandgap absorption effect of p-n junction. This work has offered a new insight into the design of p-n junction devices using p-type CuGaO
2
nanoplates.</description><identifier>ISSN: 2045-2322</identifier><identifier>EISSN: 2045-2322</identifier><identifier>DOI: 10.1038/srep21135</identifier><identifier>PMID: 26887923</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>639/624 ; 639/925/357 ; Absorption ; Electrostatic properties ; Emissions ; Humanities and Social Sciences ; Low temperature ; Luminescence ; multidisciplinary ; Nanocomposites ; Nanoparticles ; Photons ; Science ; Temperature effects</subject><ispartof>Scientific reports, 2016-02, Vol.6 (1), p.21135-21135, Article 21135</ispartof><rights>The Author(s) 2016</rights><rights>Copyright Nature Publishing Group Feb 2016</rights><rights>Copyright © 2016, Macmillan Publishers Limited 2016 Macmillan Publishers Limited</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c504t-d57e3e12d58147db5834e619181e6ae89ab024236c311a55004f5fd00b462f713</citedby><cites>FETCH-LOGICAL-c504t-d57e3e12d58147db5834e619181e6ae89ab024236c311a55004f5fd00b462f713</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4758078/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4758078/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,860,881,27901,27902,41096,42165,51551,53766,53768</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26887923$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Shi, Linlin</creatorcontrib><creatorcontrib>Wang, Fei</creatorcontrib><creatorcontrib>Wang, Yunpeng</creatorcontrib><creatorcontrib>Wang, Dengkui</creatorcontrib><creatorcontrib>Zhao, Bin</creatorcontrib><creatorcontrib>Zhang, Ligong</creatorcontrib><creatorcontrib>Zhao, Dongxu</creatorcontrib><creatorcontrib>Shen, Dezhen</creatorcontrib><title>Photoluminescence and photocatalytic properties of rhombohedral CuGaO2 nanoplates</title><title>Scientific reports</title><addtitle>Sci Rep</addtitle><addtitle>Sci Rep</addtitle><description>Rhombohedral phase CuGaO
2
nanoplates with a diameter of about 10 μm were synthesized via low temperature hydrothermal method. Room temperature and low temperature photoluminescence of the obtained CuGaO
2
nanoplates were characterized. CuGaO
2
nanoplates exhibited blue emission at room temperature and free exciton emission were appeared at low temperature. The blue emission is originated from defects such as Cu vacancies, which is the possible origin of p-type conductivity. The appearance of free exciton emission can demonstrate the direct bandgap transition behavior of CuGaO
2
nanoplates. The as-prepared p-type CuGaO
2
nanoplates were further decorated by n-type ZnO nanoparticles via calcination method to fabricate p-n junction nanocomposites. The nanocomposites exhibited enhanced photocatalytic activity which can be ascribed to the effective separation of photogenerated carriers by the internal electrostatic field in the p-n junction region and the enhanced light absorption properties resulted from sub-bandgap absorption effect of p-n junction. This work has offered a new insight into the design of p-n junction devices using p-type CuGaO
2
nanoplates.</description><subject>639/624</subject><subject>639/925/357</subject><subject>Absorption</subject><subject>Electrostatic properties</subject><subject>Emissions</subject><subject>Humanities and Social Sciences</subject><subject>Low temperature</subject><subject>Luminescence</subject><subject>multidisciplinary</subject><subject>Nanocomposites</subject><subject>Nanoparticles</subject><subject>Photons</subject><subject>Science</subject><subject>Temperature effects</subject><issn>2045-2322</issn><issn>2045-2322</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><sourceid>BENPR</sourceid><recordid>eNplkV1LwzAUhoMoOqYX_gEpeKPCNJ9NeiPI8AsGU9DrkLanrtImNWmF_XszpmNqbk7IeXjPm_MidEzwJcFMXQUPHSWEiR00opiLCWWU7m7dD9BRCO84HkEzTrJ9dEBTpWRG2Qg9Py1c75qhrS2EAmwBibFl0q1eC9ObZtnXRdJ514HvawiJqxK_cG3uFlB60yTT4d7MaWKNdV1jegiHaK8yTYCj7zpGr3e3L9OHyWx-_zi9mU0KgXk_KYUEBoSWQhEuy1woxiElGVEEUgMqMzmmnLK0YIQYITDmlahKjHOe0koSNkbXa91uyFsoo_c--tGdr1vjl9qZWv_u2Hqh39yn5lIoLFUUOPsW8O5jgNDrto4raBpjwQ1BE5lKLJlIaURP_6DvbvA2fk8TlalMSI5XgudrqvAuxFiqjRmC9Sorvckqsifb7jfkTzIRuFgDIbbsG_itkf_UvgBbLZ31</recordid><startdate>20160218</startdate><enddate>20160218</enddate><creator>Shi, Linlin</creator><creator>Wang, Fei</creator><creator>Wang, Yunpeng</creator><creator>Wang, Dengkui</creator><creator>Zhao, Bin</creator><creator>Zhang, Ligong</creator><creator>Zhao, Dongxu</creator><creator>Shen, Dezhen</creator><general>Nature Publishing Group UK</general><general>Nature Publishing Group</general><scope>C6C</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7X7</scope><scope>7XB</scope><scope>88A</scope><scope>88E</scope><scope>88I</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M2P</scope><scope>M7P</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20160218</creationdate><title>Photoluminescence and photocatalytic properties of rhombohedral CuGaO2 nanoplates</title><author>Shi, Linlin ; 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2
nanoplates with a diameter of about 10 μm were synthesized via low temperature hydrothermal method. Room temperature and low temperature photoluminescence of the obtained CuGaO
2
nanoplates were characterized. CuGaO
2
nanoplates exhibited blue emission at room temperature and free exciton emission were appeared at low temperature. The blue emission is originated from defects such as Cu vacancies, which is the possible origin of p-type conductivity. The appearance of free exciton emission can demonstrate the direct bandgap transition behavior of CuGaO
2
nanoplates. The as-prepared p-type CuGaO
2
nanoplates were further decorated by n-type ZnO nanoparticles via calcination method to fabricate p-n junction nanocomposites. The nanocomposites exhibited enhanced photocatalytic activity which can be ascribed to the effective separation of photogenerated carriers by the internal electrostatic field in the p-n junction region and the enhanced light absorption properties resulted from sub-bandgap absorption effect of p-n junction. This work has offered a new insight into the design of p-n junction devices using p-type CuGaO
2
nanoplates.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>26887923</pmid><doi>10.1038/srep21135</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | 639/624 639/925/357 Absorption Electrostatic properties Emissions Humanities and Social Sciences Low temperature Luminescence multidisciplinary Nanocomposites Nanoparticles Photons Science Temperature effects |
| title | Photoluminescence and photocatalytic properties of rhombohedral CuGaO2 nanoplates |
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