{"id":65238,"date":"2017-05-07T10:00:06","date_gmt":"2017-05-07T13:00:06","guid":{"rendered":"https:\/\/espacoecologico.com.br\/arquivo\/?p=65238"},"modified":"2017-05-06T22:09:03","modified_gmt":"2017-05-07T01:09:03","slug":"como-uma-fruta-pode-ajudar-a-reduzir-custos-dos-paineis-solares","status":"publish","type":"post","link":"https:\/\/espacoecologico.com.br\/arquivo\/como-uma-fruta-pode-ajudar-a-reduzir-custos-dos-paineis-solares\/","title":{"rendered":"Como uma fruta pode ajudar a reduzir custos dos pain\u00e9is solares"},"content":{"rendered":"<p><script src=\"http:\/\/b.scorecardresearch.com\/c2\/6906435\/cs.js\" async=\"\" type=\"text\/javascript\"><\/script><script src=\"\/\/a.teads.tv\/page\/63704\/tag\" async=\"\" type=\"text\/javascript\"><\/script><script src=\"http:\/\/pagead2.googlesyndication.com\/pagead\/osd.js\"><\/script><script 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id=\"post-2445953\" class=\"article\">\n<section class=\"article-content\"><img loading=\"lazy\" class=\"alignleft size-medium wp-image-65239\" src=\"https:\/\/espacoecologico.com.br\/arquivo\/wp-content\/uploads\/2017\/05\/jamun-300x192.jpg\" alt=\"\" width=\"300\" height=\"192\" srcset=\"https:\/\/espacoecologico.com.br\/arquivo\/wp-content\/uploads\/2017\/05\/jamun-300x192.jpg 300w, https:\/\/espacoecologico.com.br\/arquivo\/wp-content\/uploads\/2017\/05\/jamun.jpg 415w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>Cientistas do Instituto Indiano de Tecnologia Roorkee (IIT) descobriram que o \u201cjamun\u201d, conhecido no Brasil como jamel\u00e3o, uma popular frutinha\u00a0preta oriunda do sul da \u00c1sia, poderia ajudar a reduzir os custos de produ\u00e7\u00e3o de pain\u00e9is solares em massa. Isso porque ele cont\u00e9m um pigmento capaz de absorver a luz solar.De nome cient\u00edfico <em>Syzygium cumini<\/em>, a fruta \u00e9 bastante conhecida por seu valor medicinal e\u00a0nutricional, e cresce em \u00e1rvores que podem atingir 10 metros de altura e viver por mais de cem anos. Agora, gra\u00e7as ao pigmento antocianina (tamb\u00e9m encontrado em mirtilos, framboesas e cerejas), ela pode se tornar valiosa para o desenvolvimento de c\u00e9lulas solares de baixo custo.<\/p>\n<p>O estudo foi publicado recentemente no peri\u00f3dico cient\u00edfico IEEE Journal of Photovoltaics. Em entrevista ao site Quartz, o professor assistente do Instituto, Soumitra Satapathi, conta que os pesquisadores \u201cextra\u00edram o pigmento usando etanol e descobriram que a antocianina era um grande absorvedor termo-solar\u201d.<\/p>\n<p>Os pesquisadores usaram a antocianina como um sensibilizador em c\u00e9lulas solares sensibilizadas por corantes (\u201cDye-Sensitized Solar Cells\u201d, ou simplesmente DSSCs, na sigla em ingl\u00eas). Segundo o estudo, a utiliza\u00e7\u00e3o de corantes naturais, como o pigmento\u00a0do jamel\u00e3o, poderia reduzir em at\u00e9 40% os custos de um painel solar.<\/p>\n<p>Claro que h\u00e1 um percurso longo a se percorrer antes da solu\u00e7\u00e3o chegar \u00e0s vias comerciais.<\/p>\n<p>Os pigmentos naturais ainda n\u00e3o s\u00e3o t\u00e3o eficientes quanto as tradicionais c\u00e9lulas solares baseadas em sil\u00edcio (classificadas como de\u00a0primeira-gera\u00e7\u00e3o), mas, segundo os cientistas, eles poderiam oferecer uma alternativa de baixo custo, especialmente ben\u00e9fica para pa\u00edses como a \u00cdndia, que at\u00e9 2030 pretende obter 40% de sua energia a partir de fontes renov\u00e1veis.<\/p>\n<p>At\u00e9 o momento, o corante natural s\u00f3 conseguiu uma efici\u00eancia de 0,5%, em contraste com os 15% de efici\u00eancia das c\u00e9lulas solares tradicionais. Os cientistas acreditam que, com mais desenvolvimento, seria poss\u00edvel superar as efici\u00eancias de c\u00e9lulas feitas com o sil\u00edcio, com a vantagem de se ter uma alternativa biodegrad\u00e1vel e n\u00e3o t\u00f3xica aos corantes sint\u00e9ticos usados atualmente para sensibiliza\u00e7\u00e3o de c\u00e9lulas solares.<\/p>\n<\/section>\n<\/article>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Cientistas do Instituto Indiano de Tecnologia Roorkee (IIT) descobriram que o \u201cjamun\u201d, conhecido no Brasil<\/p>\n","protected":false},"author":6,"featured_media":65239,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"uagb_featured_image_src":{"full":["https:\/\/espacoecologico.com.br\/arquivo\/wp-content\/uploads\/2017\/05\/jamun.jpg",415,265,false],"thumbnail":["https:\/\/espacoecologico.com.br\/arquivo\/wp-content\/uploads\/2017\/05\/jamun-150x150.jpg",150,150,true],"medium":["https:\/\/espacoecologico.com.br\/arquivo\/wp-content\/uploads\/2017\/05\/jamun-300x192.jpg",300,192,true],"medium_large":["https:\/\/espacoecologico.com.br\/arquivo\/wp-content\/uploads\/2017\/05\/jamun.jpg",415,265,false],"large":["https:\/\/espacoecologico.com.br\/arquivo\/wp-content\/uploads\/2017\/05\/jamun.jpg",415,265,false],"1536x1536":["https:\/\/espacoecologico.com.br\/arquivo\/wp-content\/uploads\/2017\/05\/jamun.jpg",415,265,false],"2048x2048":["https:\/\/espacoecologico.com.br\/arquivo\/wp-content\/uploads\/2017\/05\/jamun.jpg",415,265,false],"cream-magazine-thumbnail-2":["https:\/\/espacoecologico.com.br\/arquivo\/wp-content\/uploads\/2017\/05\/jamun.jpg",415,265,false],"cream-magazine-thumbnail-3":["https:\/\/espacoecologico.com.br\/arquivo\/wp-content\/uploads\/2017\/05\/jamun.jpg",415,265,false],"cream-magazine-thumbnail-4":["https:\/\/espacoecologico.com.br\/arquivo\/wp-content\/uploads\/2017\/05\/jamun.jpg",415,265,false]},"uagb_author_info":{"display_name":"","author_link":"https:\/\/espacoecologico.com.br\/arquivo\/author\/"},"uagb_comment_info":0,"uagb_excerpt":"Cientistas do Instituto Indiano de Tecnologia Roorkee (IIT) descobriram que o \u201cjamun\u201d, conhecido no Brasil","_links":{"self":[{"href":"https:\/\/espacoecologico.com.br\/arquivo\/wp-json\/wp\/v2\/posts\/65238"}],"collection":[{"href":"https:\/\/espacoecologico.com.br\/arquivo\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/espacoecologico.com.br\/arquivo\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/espacoecologico.com.br\/arquivo\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/espacoecologico.com.br\/arquivo\/wp-json\/wp\/v2\/comments?post=65238"}],"version-history":[{"count":0,"href":"https:\/\/espacoecologico.com.br\/arquivo\/wp-json\/wp\/v2\/posts\/65238\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/espacoecologico.com.br\/arquivo\/wp-json\/wp\/v2\/media\/65239"}],"wp:attachment":[{"href":"https:\/\/espacoecologico.com.br\/arquivo\/wp-json\/wp\/v2\/media?parent=65238"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/espacoecologico.com.br\/arquivo\/wp-json\/wp\/v2\/categories?post=65238"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/espacoecologico.com.br\/arquivo\/wp-json\/wp\/v2\/tags?post=65238"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}