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August 2013

Scanning electron microscopy images of silver sulfide structures: The images show the regular arrangement of approximately 1.5 µm large silver sulfide structures, which were prepared in a cooperation with the group of Prof. Klar in the clean room of the 1. Physical Institute (JLU Giessen). The regular arrangements were fabricated by electron beam lithography followed by thermal evaporation of silver and a thin chromium layer as cover layer. Afterwards, the sample was exposed to a sulfur atmosphere in a furnace at 80 °C. The sulfurization process resulted in the growth of silver sulfide at the free surfaces of the silver squares and lead finally to the formation of the shown silver sulfide network. The aim of the research is to investigate the ionic and electronic conductivity properties of such networks. (Picture submitted by Daniela Schön and Matthias Elm.)

August 2013
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