Photoelectrochemical solar cell using extract of Eugenia jambolana Lam as a natural sensitizer

Anais da Academia Brasileira de Ciências

Christian G. Garcia¹  André S. Polo¹  Neyde Y. Murakami Iha¹ 

[1] ,Universidade de São Paulo Instituto de Química São Paulo SP ,Brasil

关键词: photoelectrochemical solar cell;    natural dye;    Jambolão (java plum);    energy conversion;    dye sensitized solar cells;    célula solar fotoeletroquímica;    corante natural;    Jambolão;    conversão de energia;    células solares sensibilizadas por corante;   

DOI  :  10.1590/S0001-37652003000200004

来源: SciELO

【 摘 要 】

The extract of Jambolão (java plum), Eugenia jambolana Lam, was used as a natural sensitizer of a wide band-gap semiconductor (TiO2) in photoelectrochemical solar cells. The natural dye, adsorbed onto the semiconductor surface, absorbs visible light and promotes electron transfer across the dye/semiconductor interface. Photogenerated current and voltage as high as 2.3 mA and 711 mV, respectively, were obtained and effective conversion of visible light into electricity was achieved. The use of a natural product as the semiconductor sensitizer enables a faster and simpler production of cheaper and environmentally friendly solar cells.

【 授权许可】

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