Open Access. Powered by Scholars. Published by Universities.®
Electrical and Computer Engineering
Electrical and Computer Engineering Faculty Publications and Presentations
Articles 1 - 1 of 1
Full-Text Articles in Engineering
Silver Photo-Diffusion And Photo-Induced Macroscopic Surface Deformation Of Ge33s67/Ag/Si Substrate, M. Ailavajhala, M. Mitkova
Silver Photo-Diffusion And Photo-Induced Macroscopic Surface Deformation Of Ge33s67/Ag/Si Substrate, M. Ailavajhala, M. Mitkova
Electrical and Computer Engineering Faculty Publications and Presentations
Ge-chalcogenide films show various photo-induced changes, and silver photo-diffusion is one of them which attracts lots of interest. In this paper, we report how silver and Ge-chalcogenide layers in Ge33S67/Ag/Si substrate stacks change under light exposure in the depth by measuring time-resolved neutron reflectivity. It was found from the measurement that Ag ions diffuse all over the matrix Ge33S67layer once Ag dissolves into the layer. We also found that the surface was macroscopically deformed by the extended light exposure. Its structural origin was investigated by a scanning electron microscopy.