Nanotech 2010

Synthesis of Silver Sulfide Nanotextured Structures for Electronic Applications

J.A. Muniz, J.F. Hernandez, P.E. Garcia, C.A. Rodriguez
UACJ, MX

Keywords: silver sulfide nanotextured structures

Abstract:

The Silver Sulfide (Ag2S) is a material widely used in optical and electronic applications due to its electrical and ionic conductivity. Morphologies of flowers, nanotubes, nanowires, nanolayers arrangements, and leaf shape nanolayers among others have been reported for Ag2S materials since its properties are dependant of the shape and particle size.. However, the routes to produce them involve complex procedures and/or generate independent nanoparticles or nanostructures. During electronic corrosion studies, the authors observed Ag2S nanotextured structures on Silver substrates with compressive stresses. These structures were formed when the Silver substrates were exposed to environments containing H2S at temperatures of 110oC. The hypothesis of this project is that the synthesis of Ag2S nanotextured structures attached to Silver substrates can be accomplished by a solid-gas reaction and the control of the atmosphere, time, temperature and mechanical stresses; and they could be aligned or controlled by voltage. This method could allow production of high volumes at a reasonable cost. In this poster presentation, preliminary studies of the Ag2S nanotextured structure formation are presented. The mechanism of formation of these structures is addressed as well as their characterization using FE-SEM, EDS and XRD techniques.
 
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