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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Constru??o de c?lulas solares de corantes fotoexcit?veis utilizando flavon?ides da capsicum frutescens, pimenta malagueta

Sobral, Edvaldo Gon?alves 31 May 2007 (has links)
Made available in DSpace on 2014-12-17T14:57:47Z (GMT). No. of bitstreams: 1 EdvaldoGS.pdf: 1519752 bytes, checksum: ed321ceae5e05555d63b38c5361fd548 (MD5) Previous issue date: 2007-05-31 / The conversion of solar energy in electric with photo-voltaic cells has been carried through exclusively with devices of semiconducting junction. To put this situation comes moving for better in them last years, thanks to a new technology of production of known solar cells as Dye Solar Cell. This proposal aims at to develop a DSC having as dye lavonoides of the Capsicum frutescens (malagueta pepper). Front is considered to evaluate the photo-voltaic parameters varies it regions of the visible specter, as well as a good efficiency of conversion / A convers?o de energia solar em energia el?trica com c?lulas fotovoltaicas tem sido realizada exclusivamente com dispositivos de jun??o semicondutora. Por?m, esta situa??o vem mudando para melhor nos ?ltimos anos gra?as a uma nova tecnologia de produ??o de c?lulas solares conhecidas como Dye Solar Cell, ou C?lulas Solares de Corantes Fotoexcit?veis (CSCF). Neste trabalho desenvolveu-se o ?xido de tit?nio pelo processo dos precursores polim?ricos para montagem de uma CSCF tendo-se como corante os flavon?ides da Capsicum frutescens, (pimenta malagueta). Foram avaliados os par?metros de pot?ncia, resposta corrente em fun??o da tens?o, corrente de pot?ncia m?xima e tens?o de pot?ncia m?xima frente ao espectro vis?vel

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