Method for Preparing a Photovoltaic Thin Film Having a Heterojunction
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United States of America Patent
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Jun 25, 2015
app pub date -
Apr 19, 2013
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Apr 20, 2012
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Abstract
The present invention relates to a method for preparing a photovoltaic thin film having a heterojunction by depositing a composition, including a first organic electron-donor semiconductor CP and a second organic electron-acceptor semiconductor CN, onto a substrate and then carrying out phase segregation, including: a step (E1) of preparing a first mixture M1 including the organic semiconductors CN and CP within a solvent medium; and then a step (E2) of adding an additive, having at least one N3 function, to the said mixture.
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