Síntese eletroquímica e caracterização de filmes finos de compostos da forma BiSe(X), com X = Cu, Fe ou Co
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFSCAR |
Texto Completo: | https://repositorio.ufscar.br/handle/ufscar/7328 |
Resumo: | The present work is based on the literature related to the Bi2Se3 compound, which is present in current researches as a topological insulator and is also well known for thermoelectricity applications. In this work the electrochemical synthesis of a material containing Bi, Se and X (X = Cu, Fe or Co) was carried out searching for a composition of Bi and Se in accordance with the stoichiometry of Bi2Se3. The third element, X, was used in the electrodeposition baths considering the Bi2Se3 literature, which presents doping and interaction with other elements for this compound. The synthesis conditions were determined based on studies using cyclic voltammetry. The main material studied was the ternary compound containing Bi, Se and Cu. The films obtained were characterized using scanning electron microscopy, energy dispersive x-ray spectroscopy, x-ray diffraction and Raman spectroscopy. It was found out that baths containing sulfuric acid were adequate for obtaining films of Bi, Se and Cu but a bath containing glycerol and sodium citrate was necessary for including Fe on the material. Some magnetic properties of the films obtained were also studied and paramagnetic behaviour was observed for the samples. |
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Mendes, Paulo de Carvalho DiasMascaro, Lucia Helenahttp://lattes.cnpq.br/9130022476352844http://lattes.cnpq.br/81040475840473982016-09-21T13:02:33Z2016-09-21T13:02:33Z2015-10-26MENDES, Paulo de Carvalho Dias. Síntese eletroquímica e caracterização de filmes finos de compostos da forma BiSe(X), com X = Cu, Fe ou Co. 2015. Dissertação (Mestrado em Química) – Universidade Federal de São Carlos, São Carlos, 2015. Disponível em: https://repositorio.ufscar.br/handle/ufscar/7328.https://repositorio.ufscar.br/handle/ufscar/7328The present work is based on the literature related to the Bi2Se3 compound, which is present in current researches as a topological insulator and is also well known for thermoelectricity applications. In this work the electrochemical synthesis of a material containing Bi, Se and X (X = Cu, Fe or Co) was carried out searching for a composition of Bi and Se in accordance with the stoichiometry of Bi2Se3. The third element, X, was used in the electrodeposition baths considering the Bi2Se3 literature, which presents doping and interaction with other elements for this compound. The synthesis conditions were determined based on studies using cyclic voltammetry. The main material studied was the ternary compound containing Bi, Se and Cu. The films obtained were characterized using scanning electron microscopy, energy dispersive x-ray spectroscopy, x-ray diffraction and Raman spectroscopy. It was found out that baths containing sulfuric acid were adequate for obtaining films of Bi, Se and Cu but a bath containing glycerol and sodium citrate was necessary for including Fe on the material. Some magnetic properties of the films obtained were also studied and paramagnetic behaviour was observed for the samples.O presente trabalho fundamente-se na literatura relacionada com o composto Bi2Se3. Esse composto está presente na literatura atual de isolantes topológicos e também é conhecido por suas propriedades termoelétricas. Nesse trabalho foi realizada a síntese eletroquímica de um material contendo Bi, Se e X (X = Cu, Fe or Co) buscando obter composições de Bi e Se adequadas à estequiometria do Bi2Se3. O terceiro elemento, X, foi utilizado nos banhos de eletrodeposição considerando estudos da literatura para o Bi2Se3 que tratam de sua dopagem ou interação com outros elementos. As condições de síntese foram determinadas com base em estudos utilizando voltametria cíclica. O principal material estudado foi o composto ternário de Bi, Se e Cu. Os filmes obtidos foram caracterizados por microscopia eletrônica de varredura, espectroscopia dispersiva de raios X, difração de raios X e espectroscopia Raman. Foi verificado que banhos contendo ácido sulfúrico foram adequados para obter filmes de Bi, Se e Cu, mas um banho contendo glicerol e citrato de sódio foi necessário para incluir Fe no material. Algumas propriedades magnéticas dos filmes obtidos também foram estudadas e o comportamento paramagnético foi observado para as amostras.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)porUniversidade Federal de São CarlosCâmpus São CarlosPrograma de Pós-Graduação em Química - PPGQUFSCarEletrodeposiçãoIsolante topológicoVoltametriaSeleneto de bismutoSíntese eletroquímicaElectrodepositionTopological insulatorVoltammetryBismuth selenideElectrochemical synthesisCopperCIENCIAS EXATAS E DA TERRA::QUIMICASíntese eletroquímica e caracterização de filmes finos de compostos da forma BiSe(X), com X = Cu, Fe ou CoElectrochemical synthesis and characterization of thin films of compounds in the form bise(x), with x = cu, fe or coinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisOnlineinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFSCARinstname:Universidade Federal de São Carlos (UFSCAR)instacron:UFSCARORIGINALDissPCDM.pdfDissPCDM.pdfapplication/pdf3450913https://{{ getenv "DSPACE_HOST" "repositorio.ufscar.br" }}/bitstream/ufscar/7328/1/DissPCDM.pdf84b54d1d49257840a2f202608f7dba57MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81957https://{{ getenv "DSPACE_HOST" "repositorio.ufscar.br" }}/bitstream/ufscar/7328/2/license.txtae0398b6f8b235e40ad82cba6c50031dMD52TEXTDissPCDM.pdf.txtDissPCDM.pdf.txtExtracted texttext/plain182255https://{{ getenv "DSPACE_HOST" "repositorio.ufscar.br" }}/bitstream/ufscar/7328/3/DissPCDM.pdf.txt4c18b389de80882fae9e7ad6f6233ce0MD53THUMBNAILDissPCDM.pdf.jpgDissPCDM.pdf.jpgIM Thumbnailimage/jpeg9637https://{{ getenv "DSPACE_HOST" "repositorio.ufscar.br" }}/bitstream/ufscar/7328/4/DissPCDM.pdf.jpg3a514d5814dfa65c2bebe3eadfc0de2bMD54ufscar/73282019-09-11 02:12:02.653oai:repositorio.ufscar.br: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Repositório InstitucionalPUBhttps://repositorio.ufscar.br/oai/requestopendoar:43222019-09-11T02:12:02Repositório Institucional da UFSCAR - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.por.fl_str_mv |
Síntese eletroquímica e caracterização de filmes finos de compostos da forma BiSe(X), com X = Cu, Fe ou Co |
dc.title.alternative.eng.fl_str_mv |
Electrochemical synthesis and characterization of thin films of compounds in the form bise(x), with x = cu, fe or co |
title |
Síntese eletroquímica e caracterização de filmes finos de compostos da forma BiSe(X), com X = Cu, Fe ou Co |
spellingShingle |
Síntese eletroquímica e caracterização de filmes finos de compostos da forma BiSe(X), com X = Cu, Fe ou Co Mendes, Paulo de Carvalho Dias Eletrodeposição Isolante topológico Voltametria Seleneto de bismuto Síntese eletroquímica Electrodeposition Topological insulator Voltammetry Bismuth selenide Electrochemical synthesis Copper CIENCIAS EXATAS E DA TERRA::QUIMICA |
title_short |
Síntese eletroquímica e caracterização de filmes finos de compostos da forma BiSe(X), com X = Cu, Fe ou Co |
title_full |
Síntese eletroquímica e caracterização de filmes finos de compostos da forma BiSe(X), com X = Cu, Fe ou Co |
title_fullStr |
Síntese eletroquímica e caracterização de filmes finos de compostos da forma BiSe(X), com X = Cu, Fe ou Co |
title_full_unstemmed |
Síntese eletroquímica e caracterização de filmes finos de compostos da forma BiSe(X), com X = Cu, Fe ou Co |
title_sort |
Síntese eletroquímica e caracterização de filmes finos de compostos da forma BiSe(X), com X = Cu, Fe ou Co |
author |
Mendes, Paulo de Carvalho Dias |
author_facet |
Mendes, Paulo de Carvalho Dias |
author_role |
author |
dc.contributor.authorlattes.por.fl_str_mv |
http://lattes.cnpq.br/8104047584047398 |
dc.contributor.author.fl_str_mv |
Mendes, Paulo de Carvalho Dias |
dc.contributor.advisor1.fl_str_mv |
Mascaro, Lucia Helena |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/9130022476352844 |
contributor_str_mv |
Mascaro, Lucia Helena |
dc.subject.por.fl_str_mv |
Eletrodeposição Isolante topológico Voltametria Seleneto de bismuto Síntese eletroquímica |
topic |
Eletrodeposição Isolante topológico Voltametria Seleneto de bismuto Síntese eletroquímica Electrodeposition Topological insulator Voltammetry Bismuth selenide Electrochemical synthesis Copper CIENCIAS EXATAS E DA TERRA::QUIMICA |
dc.subject.eng.fl_str_mv |
Electrodeposition Topological insulator Voltammetry Bismuth selenide Electrochemical synthesis Copper |
dc.subject.cnpq.fl_str_mv |
CIENCIAS EXATAS E DA TERRA::QUIMICA |
description |
The present work is based on the literature related to the Bi2Se3 compound, which is present in current researches as a topological insulator and is also well known for thermoelectricity applications. In this work the electrochemical synthesis of a material containing Bi, Se and X (X = Cu, Fe or Co) was carried out searching for a composition of Bi and Se in accordance with the stoichiometry of Bi2Se3. The third element, X, was used in the electrodeposition baths considering the Bi2Se3 literature, which presents doping and interaction with other elements for this compound. The synthesis conditions were determined based on studies using cyclic voltammetry. The main material studied was the ternary compound containing Bi, Se and Cu. The films obtained were characterized using scanning electron microscopy, energy dispersive x-ray spectroscopy, x-ray diffraction and Raman spectroscopy. It was found out that baths containing sulfuric acid were adequate for obtaining films of Bi, Se and Cu but a bath containing glycerol and sodium citrate was necessary for including Fe on the material. Some magnetic properties of the films obtained were also studied and paramagnetic behaviour was observed for the samples. |
publishDate |
2015 |
dc.date.issued.fl_str_mv |
2015-10-26 |
dc.date.accessioned.fl_str_mv |
2016-09-21T13:02:33Z |
dc.date.available.fl_str_mv |
2016-09-21T13:02:33Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
MENDES, Paulo de Carvalho Dias. Síntese eletroquímica e caracterização de filmes finos de compostos da forma BiSe(X), com X = Cu, Fe ou Co. 2015. Dissertação (Mestrado em Química) – Universidade Federal de São Carlos, São Carlos, 2015. Disponível em: https://repositorio.ufscar.br/handle/ufscar/7328. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufscar.br/handle/ufscar/7328 |
identifier_str_mv |
MENDES, Paulo de Carvalho Dias. Síntese eletroquímica e caracterização de filmes finos de compostos da forma BiSe(X), com X = Cu, Fe ou Co. 2015. Dissertação (Mestrado em Química) – Universidade Federal de São Carlos, São Carlos, 2015. Disponível em: https://repositorio.ufscar.br/handle/ufscar/7328. |
url |
https://repositorio.ufscar.br/handle/ufscar/7328 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de São Carlos Câmpus São Carlos |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Química - PPGQ |
dc.publisher.initials.fl_str_mv |
UFSCar |
publisher.none.fl_str_mv |
Universidade Federal de São Carlos Câmpus São Carlos |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFSCAR instname:Universidade Federal de São Carlos (UFSCAR) instacron:UFSCAR |
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UFSCAR |
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UFSCAR |
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Repositório Institucional da UFSCAR |
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Repositório Institucional da UFSCAR |
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