Enhancement of symmetry-induced photoluminescence in bismuth tungstate microcrystals
Bi2WO6 (BWO) powders synthesized via hydrothermal processes were studied in order to determine the effect of structure on photoluminescence (PL). BWO samples were characterized using X-Ray Powder Diffraction, UV–vis diffuse reflectance, field emission scanning electron microscopy, and PL intensity m...
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| Veröffentlicht in: | Materials letters 2016-12, Vol.184, p.298-300 |
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| creator | Rocha, Poliana Lima Batista Barbosa, Diego Augusto de Oliveira Lima, José Renato Piedade Prazeres, Gilza Maria de Araujo Paschoal, Carlos William Li, Maximo Siu Longo, Elson Maciel, Adeilton Pereira Almeida, Marcio Aurélio Pinheiro |
| description | Bi2WO6 (BWO) powders synthesized via hydrothermal processes were studied in order to determine the effect of structure on photoluminescence (PL). BWO samples were characterized using X-Ray Powder Diffraction, UV–vis diffuse reflectance, field emission scanning electron microscopy, and PL intensity measurements. Orthorhombic structures were observed in all samples. A change in crystal microstructure and optical band gap was observed. The PL intensity obtained with different samples varied, with the highest intensity obtained with BWO fabricated with polyvinylpyrrolidone (PVP). Using Raman spectroscopy, a change in the microcrystal symmetry from P21ab to B2cb was observed and found to be responsible for the increase in photoluminescence.
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•Importance of templates in the structural organization.•Influences of structural change in the photoluminescence.•Change symmetry derived from the use of templates. |
| doi_str_mv | 10.1016/j.matlet.2016.08.041 |
| format | Article |
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[Display omitted]
•Importance of templates in the structural organization.•Influences of structural change in the photoluminescence.•Change symmetry derived from the use of templates.</description><identifier>ISSN: 0167-577X</identifier><identifier>EISSN: 1873-4979</identifier><identifier>DOI: 10.1016/j.matlet.2016.08.041</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Bismuth ; Bismuth tungstate ; Crystals ; Diffraction ; Microcrystals ; Photoluminescence ; Polyvinylpyrrolidone ; Reflectivity ; Structural change ; Tungstates</subject><ispartof>Materials letters, 2016-12, Vol.184, p.298-300</ispartof><rights>2016 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c385t-836430ddc6a07cb40e43cf23103e26806327d15fc4f56349f40e3d7d364de66f3</citedby><cites>FETCH-LOGICAL-c385t-836430ddc6a07cb40e43cf23103e26806327d15fc4f56349f40e3d7d364de66f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0167577X16313192$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Rocha, Poliana Lima</creatorcontrib><creatorcontrib>Batista Barbosa, Diego Augusto</creatorcontrib><creatorcontrib>de Oliveira Lima, José Renato</creatorcontrib><creatorcontrib>Piedade Prazeres, Gilza Maria</creatorcontrib><creatorcontrib>de Araujo Paschoal, Carlos William</creatorcontrib><creatorcontrib>Li, Maximo Siu</creatorcontrib><creatorcontrib>Longo, Elson</creatorcontrib><creatorcontrib>Maciel, Adeilton Pereira</creatorcontrib><creatorcontrib>Almeida, Marcio Aurélio Pinheiro</creatorcontrib><title>Enhancement of symmetry-induced photoluminescence in bismuth tungstate microcrystals</title><title>Materials letters</title><description>Bi2WO6 (BWO) powders synthesized via hydrothermal processes were studied in order to determine the effect of structure on photoluminescence (PL). BWO samples were characterized using X-Ray Powder Diffraction, UV–vis diffuse reflectance, field emission scanning electron microscopy, and PL intensity measurements. Orthorhombic structures were observed in all samples. A change in crystal microstructure and optical band gap was observed. The PL intensity obtained with different samples varied, with the highest intensity obtained with BWO fabricated with polyvinylpyrrolidone (PVP). Using Raman spectroscopy, a change in the microcrystal symmetry from P21ab to B2cb was observed and found to be responsible for the increase in photoluminescence.
[Display omitted]
•Importance of templates in the structural organization.•Influences of structural change in the photoluminescence.•Change symmetry derived from the use of templates.</description><subject>Bismuth</subject><subject>Bismuth tungstate</subject><subject>Crystals</subject><subject>Diffraction</subject><subject>Microcrystals</subject><subject>Photoluminescence</subject><subject>Polyvinylpyrrolidone</subject><subject>Reflectivity</subject><subject>Structural change</subject><subject>Tungstates</subject><issn>0167-577X</issn><issn>1873-4979</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNp9kE9LxDAQxYMouK5-Aw89emlNmjRJL4Is_oMFLyt4C91k4mZp2jVJhf32ZqlnT49h3hve_BC6JbgimPD7feW71EOq6jxVWFaYkTO0IFLQkrWiPUeLvBBlI8TnJbqKcY8xZi1mC7R5GnbdoMHDkIrRFvHoPaRwLN1gJg2mOOzGNPaTdwNEDdlZuKHYuuintCvSNHzF1CUovNNh1OGYpz5eowubBW7-dIk-np82q9dy_f7ytnpcl5rKJpWSckaxMZp3WOgtw8CotjUlmELNJea0FoY0VjPbcMpamx3UCJNjBji3dInu5ruHMH5PEJPyLpfs-26AcYqKSNbImnBCspXN1lwzxgBWHYLzXTgqgtUJotqrGaI6QVRYqgwxxx7mGOQ3fhwEFbU7UTAugE7KjO7_A7_RYH6N</recordid><startdate>20161201</startdate><enddate>20161201</enddate><creator>Rocha, Poliana Lima</creator><creator>Batista Barbosa, Diego Augusto</creator><creator>de Oliveira Lima, José Renato</creator><creator>Piedade Prazeres, Gilza Maria</creator><creator>de Araujo Paschoal, Carlos William</creator><creator>Li, Maximo Siu</creator><creator>Longo, Elson</creator><creator>Maciel, Adeilton Pereira</creator><creator>Almeida, Marcio Aurélio Pinheiro</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20161201</creationdate><title>Enhancement of symmetry-induced photoluminescence in bismuth tungstate microcrystals</title><author>Rocha, Poliana Lima ; Batista Barbosa, Diego Augusto ; de Oliveira Lima, José Renato ; Piedade Prazeres, Gilza Maria ; de Araujo Paschoal, Carlos William ; Li, Maximo Siu ; Longo, Elson ; Maciel, Adeilton Pereira ; Almeida, Marcio Aurélio Pinheiro</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c385t-836430ddc6a07cb40e43cf23103e26806327d15fc4f56349f40e3d7d364de66f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Bismuth</topic><topic>Bismuth tungstate</topic><topic>Crystals</topic><topic>Diffraction</topic><topic>Microcrystals</topic><topic>Photoluminescence</topic><topic>Polyvinylpyrrolidone</topic><topic>Reflectivity</topic><topic>Structural change</topic><topic>Tungstates</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rocha, Poliana Lima</creatorcontrib><creatorcontrib>Batista Barbosa, Diego Augusto</creatorcontrib><creatorcontrib>de Oliveira Lima, José Renato</creatorcontrib><creatorcontrib>Piedade Prazeres, Gilza Maria</creatorcontrib><creatorcontrib>de Araujo Paschoal, Carlos William</creatorcontrib><creatorcontrib>Li, Maximo Siu</creatorcontrib><creatorcontrib>Longo, Elson</creatorcontrib><creatorcontrib>Maciel, Adeilton Pereira</creatorcontrib><creatorcontrib>Almeida, Marcio Aurélio Pinheiro</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Rocha, Poliana Lima</au><au>Batista Barbosa, Diego Augusto</au><au>de Oliveira Lima, José Renato</au><au>Piedade Prazeres, Gilza Maria</au><au>de Araujo Paschoal, Carlos William</au><au>Li, Maximo Siu</au><au>Longo, Elson</au><au>Maciel, Adeilton Pereira</au><au>Almeida, Marcio Aurélio Pinheiro</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Enhancement of symmetry-induced photoluminescence in bismuth tungstate microcrystals</atitle><jtitle>Materials letters</jtitle><date>2016-12-01</date><risdate>2016</risdate><volume>184</volume><spage>298</spage><epage>300</epage><pages>298-300</pages><issn>0167-577X</issn><eissn>1873-4979</eissn><abstract>Bi2WO6 (BWO) powders synthesized via hydrothermal processes were studied in order to determine the effect of structure on photoluminescence (PL). BWO samples were characterized using X-Ray Powder Diffraction, UV–vis diffuse reflectance, field emission scanning electron microscopy, and PL intensity measurements. Orthorhombic structures were observed in all samples. A change in crystal microstructure and optical band gap was observed. The PL intensity obtained with different samples varied, with the highest intensity obtained with BWO fabricated with polyvinylpyrrolidone (PVP). Using Raman spectroscopy, a change in the microcrystal symmetry from P21ab to B2cb was observed and found to be responsible for the increase in photoluminescence.
[Display omitted]
•Importance of templates in the structural organization.•Influences of structural change in the photoluminescence.•Change symmetry derived from the use of templates.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.matlet.2016.08.041</doi><tpages>3</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Bismuth Bismuth tungstate Crystals Diffraction Microcrystals Photoluminescence Polyvinylpyrrolidone Reflectivity Structural change Tungstates |
| title | Enhancement of symmetry-induced photoluminescence in bismuth tungstate microcrystals |
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