Células Solares Sensibilizadas Com Corantes Naturais Extraído das Plantas Nerium Oleander e Portulaca Grandiflora
DOI:
https://doi.org/10.5902/2179460X22466Keywords:
Corante natural. Células solares. Energia solar.Abstract
A utilização da energia solar para geração da energia elétrica tem sido cada vez mais considerada em vários países do mundo como uma ótima alternativa para redução dos impactos ambientais causados pelo homem, especialmente os associados às mudanças climáticas. Células solares sensibilizadas por corante têm sido estudadas como uma promissora fonte de energia renovável, devido à sua tecnologia de fabricação de baixo custo em comparação com células solares de silício. Neste trabalho, os sensibilizadores utilizados foram corantes naturais extraídos de pétalas de duas plantas ornamentais encontradas no Brasil: Nerium oleander e Portulaca grandiflora. Os resultados mostram que os solventes absorvem na região do visível e o melhor resultado foi obtido utilizando o extrato etanólico da planta Nerium oleander com densidade de corrente de 0,24 mA/cm2.
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