%0 Journal Article %1 WOS:000386316900072 %A Rocha, Poliana Lima %A Barbosa, Diego Augusto Batista %A de Oliveira Lima, Jose Renato %A Prazeres, Gilza Maria Piedade %A de Araujo Paschoal, Carlos William %A Li, Maximo Siu %A Longo, Elson %A Maciel, Adeilton Pereira %A Almeida, Marcio Aurelio Pinheiro %C PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS %D 2016 %I ELSEVIER SCIENCE BV %J MATERIALS LETTERS %K Photoluminescence} Structural change; tungstate; {Bismuth %P 298-300 %R 10.1016/j.matlet.2016.08.041 %T Enhancement of symmetry-induced photoluminescence in bismuth tungstate microcrystals %V 184 %X 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 P2(1)ab to B2cb was observed and found to be responsible for the increase in photoluminescence. (C) 2016 Elsevier B.V. All rights reserved.

@article{WOS:000386316900072, 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 P2(1)ab to B2cb was observed and found to be responsible for the increase in photoluminescence. (C) 2016 Elsevier B.V. All rights reserved.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS}, author = {Rocha, Poliana Lima and Barbosa, Diego Augusto Batista and de Oliveira Lima, Jose Renato and Prazeres, Gilza Maria Piedade and de Araujo Paschoal, Carlos William and Li, Maximo Siu and Longo, Elson and Maciel, Adeilton Pereira and Almeida, Marcio Aurelio Pinheiro}, biburl = {https://www.bibsonomy.org/bibtex/2384233bce7232b882f117327010ffa91/ppgfis_ufc_br}, doi = {10.1016/j.matlet.2016.08.041}, interhash = {280ef27c3e8c3911a0626f08cd0d26d8}, intrahash = {384233bce7232b882f117327010ffa91}, issn = {0167-577X}, journal = {MATERIALS LETTERS}, keywords = {Photoluminescence} Structural change; tungstate; {Bismuth}, pages = {298-300}, publisher = {ELSEVIER SCIENCE BV}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {Enhancement of symmetry-induced photoluminescence in bismuth tungstate microcrystals}, tppubtype = {article}, volume = 184, year = 2016 }