Detalhes bibliográficos
| Ano de defesa: |
2022 |
| Autor(a) principal: |
OLIVEIRA, MARCEL RICARDO NOGUEIRA DE
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| Orientador(a): |
Gallina, André Lazarin
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| Banca de defesa: |
Não Informado pela instituição |
| Tipo de documento: |
Dissertação
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| Tipo de acesso: |
Acesso aberto |
| Idioma: |
por |
| Instituição de defesa: |
Universidade Estadual do Centro-Oeste
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| Programa de Pós-Graduação: |
Programa de Pós-Graduação em Bioenergia (Mestrado)
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| Departamento: |
Unicentro::Departamento de Ciências Agrárias e Ambientais
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| País: |
Brasil
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| Palavras-chave em Português: |
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| Palavras-chave em Inglês: |
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| Área do conhecimento CNPq: |
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| Link de acesso: |
http://tede.unicentro.br:8080/jspui/handle/jspui/2140
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Resumo: |
Dye sensitized solar cells (DSSC) are promisors devices for solar energy conversion. They are produced by the use of a semiconductor oxide and photosensitive material. To improve the photoconversion energy efficiency, a mix of oxides is applied and dyes extracted from natural products can be used when the objective is to produce a low-cost system. This work aims to develop and evaluate a DSSC with Ti and Nb sensitized with dyes extracted from Capsicum Anuum and Curcuma Longa. For the inorganic analysis, Scanning Electron Microscopy (SEM), X-ray Fluorescence (XRF), and X-ray Diffraction (XRD) will be used. To electrochemical analysis, j-V curves, photochronoamperometic measurement (j-t), and Open Circuito Potential (OCP) will be performed. As a result of the corresponding partial analyzes during the oxide synthesis, it was observed that is possible to produce Ti/Nb particles by the Pechini methodology, with high crystallinity and mix of rutile and anatase forms. Electrochemical results showed an improving in photoconversion energy cell efficiency with 25% to Curcuma longa and 12% to Capsium Anuum when Nb was inserted. |
