Search results for "Superstrat"

showing 2 items of 2 documents

Substrat i superstrat en l'evolució del català

1999

Reflections on the significance of substratum and superstratum in the genesis and evolution of Catalan. The author considers how the recourse to the pre-Roman susbtratum in the etymological interpretation or in the historical and critical grammar has been carried to excess both by those absolutely against it and by those who take it as an all-explaining panacea. He also points out that, conversely to the interest in substratum, the Germanic superstratum has not received the attention it deserves in the genesis of Catalan because of various prejudices, some of them of an ideological kind.

Catalan languageCatalàUNESCO::CIENCIAS DE LAS ARTES Y LAS LETRASsubstrat i superstrat; gènesi i evolució del català; pre-romà; història de la gramàticaLingüísticaFilologíasSubstrat (Lingüística):CIENCIAS DE LAS ARTES Y LAS LETRAS [UNESCO]Substratum (Linguistics)
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Development of Kesterite (Cu2ZnSnS4) absorber material for solar cell application.

2021

Kesterite-based solar cells still suffer from limited efficiency due to various problems related to the absorber and device interfaces. Absorber defects and non-ideal band alignment at the absorber/buffer hetero-interface, resulting in a cliff-like conduction band offset (CBO), and non-ideal absorber/back contact interfaces are the main factors limiting efficiency.This thesis focuses mainly on the absorber-related problems such as the secondary phases and the band alignment at the absorber-buffer heterojunction as well as the back interface.In the first part, the properties of the absorber layer were studied. Thin layers of Cu2ZnSnS4 (CZTS) were obtained by chemical route. This study reveal…

HétérojonctionKesterite[CHIM.OTHE] Chemical Sciences/OtherSolar cellHeterojunctionAbsorberSuperstrateSuperstratSubstitutionAbsorbeurCellule solaire
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