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Descripción
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| An attractive but challenging technology for high efficiency solar energy conversion is the intermediate band solar cell (IBSC), whose theoretical efficiency limit is 63%, yet which has so far failed to yield high efficiencies in practice. The most advanced IBSC technology is that based on quantum dots (QDs): the QD-IBSC. In this paper, kp calculations of photon absorption in the QDs are combined with a multi-level detailed balance model. The model has been used to reproduce the measured quantum efficiency of a real QD-IBSC and its temperature dependence. This allows the analysis of individual sub-bandgap transition currents, which has as yet not been possible experimentally, yielding a deeper understanding of the failure of current QD-IBSCs. Based on the agreement with experimental data, the model is believed to be realistic enough to evaluate future QD-IBSC proposals. | |
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Internacional
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Si |
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JCR del ISI
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Si |
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Título de la revista
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Advanced Functional Materials |
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ISSN
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1616-301X |
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Factor de impacto JCR
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10,439 |
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Información de impacto
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Volumen
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24 |
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DOI
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10.1002/adfm.201301513 |
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Número de revista
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3 |
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Desde la página
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339 |
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345 |
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Ranking
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