Photovoltaic Module With Stabilized Polymer
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United States of America Patent
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Issued Date -
Jul 22, 2010
app pub date -
Jan 20, 2009
filing date -
Jan 20, 2009
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Abstract
The present invention provides a photovoltaic device comprising metal and a poly(vinyl butyral) layer that incorporates a suitable amount of 1H-benzotriazole. When electrical bias is applied to the photovoltaic device, 1H-benzotriazole forms a barrier layer at the metal/poly(vinyl butyral) interface, which, for example, unexpectedly virtually eliminated the yellowing of poly(vinyl butyral) in photovoltaic devices comprising silver components.
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