Descripción
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The intermediate-band solar cell is designed to provide a large photogenerated current while maintaining a high output voltage. To make this possible, these cells incorporate an energy band that is partially filled with electrons within the forbidden bandgap of a semiconductor. Photons with insufficient energy to pump electrons from the valence band to the conduction band can use this intermediate band as a stepping stone to generate an electron?hole pair. Nanostructured materials and certain alloys have been employed in the practical implementation of intermediate-band solar cells, although challenges still remain for realizing practical devices. Here we offer our present understanding of intermediate-band solar cells, as well as a review of the different approaches pursed for their practical implementation. We also discuss how best to resolve the remaining technical issues. | |
Internacional
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Si |
JCR del ISI
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Si |
Título de la revista
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Nature Photonics |
ISSN
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1749-4885 |
Factor de impacto JCR
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29,278 |
Información de impacto
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Volumen
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6 |
DOI
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10.1038/nphoton.2012.1 |
Número de revista
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Desde la página
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146 |
Hasta la página
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152 |
Mes
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Ranking
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