Thin and uniform silver nanowires, method of synthesis and transparent conductive films formed from the nanowires
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United States of America Patent
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Oct 8, 2019
Grant Date -
Jun 6, 2019
app pub date -
Jan 16, 2019
filing date -
Dec 6, 2017
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Abstract
Highly uniform and thin silver nanowires are described having average diameters below 20 nm and a small standard deviation of the diameters. The silver nanowires have a high aspect ratio. The silver nanowires can be characterized by a small number of nanowires having a diameter greater than 18 nm as well as with a blue shifted narrow absorption spectrum in a dilute solution. Methods are described to allow for the synthesis of the narrow uniform silver nanowires. Transparent conductive films formed from the thin, uniform silver nanowires can have very low levels of haze and low values of ΔL*, the diffusive luminosity, such that the transparent conductive films can provide little alteration of the appearance of a black background.
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