Transparent substrate provided with a stack of layers reflecting thermal radiation
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United States of America Patent
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Jan 7, 2003
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N/A
app pub date -
Mar 22, 2000
filing date -
Mar 3, 1998
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Abstract
A stack of layers reflecting heat radiation for transparent substrates comprises at least one silver functional layer and, on both faces of the latter, antireflection layers formed by one or more metal compounds. The antireflection layer under the silver layer comprises an upper partial layer of zinc oxide contiguous to the silver layer, and an additional partial layer, under the zinc oxide layer, which is formed by aluminum nitride and is under internal tensile stresses. With the aid of the AlN layer under tensile stresses, it is possible to compensate the internal compressive stresses existing in the ZnO layer.
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