Painéis solares autorregenerativos que podem durar para sempre

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Uma das grandes vantagens do painel solar fotovoltaico é a sua longa vida útil de pelo menos 25 anos, mas que pode facilmente ultrapassar três décadas quando bem cuidado.

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Agora, uma descoberta feita por pesquisadores da Universidade de York, no Reino Unido, pode estender por tempo indeterminado essa durabilidade da tecnologia no futuro.

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Em seus estudos sobre o seleneto de antimônio, semicondutor já comumente utilizado na fabricação de células fotovoltaicas, os cientistas descobriram que o material é capaz de se autorreparar quando degradado.

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Os semicondutores são a peça-chave da tecnologia fotovoltaica, responsáveis por converter a luz do sol em eletricidade e utilizados na fabricação das células que compõem uma placa solar.

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Acontece que, ao longo dos anos, esses semicondutores sofrem uma degradação natural devido ao processo de recombinação dos elétrons de seus átomos.

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Dessa forma, a nova descoberta dos pesquisadores de York traz agora a perspectiva de que, no futuro, poderemos ter painéis solares autorregenerativos de alto desempenho que poderão aumentar ainda mais a eficiência e viabilidade dos sistemas de energia fotovoltaica.

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Segundo o professor Keith McKenna, que liderou o time de pesquisadores, a capacidade de se autorregenerar do seleneto de antimônio é semelhante àquela de uma estrela do mar ou réptil quando recuperam um membro após um acidente.

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[{"selector":"#anim-cf0fe263-a271-4aff-b61f-3cf9647b9ddf","keyframes":[{"transform":"scale(1)","offset":0},{"transform":"scale(1.5)","offset":0.33},{"transform":"scale(0.95)","offset":0.66},{"transform":"scale(1)","offset":1}],"delay":0,"duration":1450,"easing":"ease-in-out","fill":"both","iterations":1}] “O processo pelo qual esse material semicondutor se autocura é muito parecido com o modo como uma salamandra é capaz de regenerar membros quando um é cortado. O seleneto de antimônio repara as ligações quebradas criadas, formando novas. Instagram YouTube Facebook

Essa habilidade é tão incomum no mundo dos materiais quanto no reino animal e tem implicações importantes para aplicações desses materiais em optoeletrônica e fotoquímica”, explica Keith.

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No final, todos esses estudos em tecnologias de energia solar visam ampliar o uso dessa que é a maior e a mais segura das fontes de energia renováveis disponíveis no mundo, capaz de contribuir para as metas climáticas dos países e ajudar no combate ao aquecimento global.

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Mais Histórias

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1)","fill":"both"}] [{"selector":"#anim-f9700655-d6dc-4184-8512-0543d8029dc9","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":350,"duration":1400,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] [{"selector":"#anim-a47e6e33-9875-460c-9e06-df5f9b9b43c8","keyframes":{"transform":["translate3d(-125.96154%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":300,"duration":1400,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-11df5aff-7b55-44fd-a244-b47da4527fc2","keyframes":{"opacity":[0,1]},"delay":300,"duration":1400,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-8ca96d76-16a5-44ba-9db4-a590cade3cc7","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":300,"duration":1400,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] [{"selector":"#anim-4f7e5038-8bc2-498c-83c6-6cc2f8db083e","keyframes":{"transform":["translate3d(-125.96154%, 0px, 0)","translate3d(0px, 0px, 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