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Descripción
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| Chalcogenide semiconductors are spreadly used nowadays as photovoltaic materials. In this work, we carry out accurate ab-initio density functional theory (DFT) research of electronic and optical properties of several transition metal alloys based on I-III-VI_2 chalcopyrites and also on thio-spinels as MgIn2S4 or In2S3. This latter materials are used commonly as window layer in thin-film photovoltaic cells. These alloy systems have interesting photovoltaic applications having a partially filled, isolated, electronic intermediate band which can enhance the efficiency of the material, if they are used as a solar cells. The calculations have been made at different dilutions in which we found the intermediate band by doping a chalcopyrite or spinel structure with a transition metal and these substitutes are 3d metal elements like Ti, V and Cr. | |
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Internacional
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Si |
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Nombre congreso
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European Materials Reaserch Society Spring meeting. Symposium L: Thin film chalcogenide photovoltaic materials |
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Tipo de participación
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960 |
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Lugar del congreso
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Strasbourg, France |
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Revisores
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Si |
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ISBN o ISSN
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00-0000-0000 |
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DOI
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Fecha inicio congreso
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26/05/2008 |
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Fecha fin congreso
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30/05/2008 |
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Desde la página
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0 |
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Hasta la página
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0 |
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Título de las actas
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Towards an ab-initio designn of the intermediate band photovoltaic materials |