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Abstract : The merits of several semiconducting compounds which can be used to build thin film photovoltaic devices are discussed, considering in particular their absorption coefficient. Photocells using polycristalline GaAs films, formed by different techniques, are then described. The best cells, obtained with GaAs films chemically formed on Mo foil, and covered with cuprous selenide, have efficiencies reaching 5 % and a good stability.

Keywords : Solar cells Thin film devices Photovoltaic cells Deposition process Yields IV characteristic Absorption coefficients Gallium arsenides Cadmium tellurides Cadmium sulfides





Autor: Paul Rappaport

Fuente: https://hal.archives-ouvertes.fr/



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