New Ag-Containing Amorphous Chalcogenide Thin Films - Prospective Materials for Rewriteable Optical Memories
Abstract
The technique of step-by-step optically-induced diffusion and dissolution (OIDD) of Ag with As33 S67 amorphous films has allowed to design films with exact silver concentration. The photodoped films with a silver concentration of 25 at.%, i.e. with composition of the stoichiometric AgAsS2 compound were prepared. The host As33S67 films were photodoped by consecutive dissolving thin ( 10 nm) layer of silver, which resulted in a single-phase optically homogeneous films. We have analyzed affect of the silver doping in the host material on optical, thermal properties, and its structure by means of optical spectroscopy, temperature- modulated differential scanning calorimetry and Raman spectroscopy respectively. Application of such films can be foreseen for rewritable high resolution optical memories (reversible phase change "amorphous-crystalline" or film optical surface nanoshaping in dependence on intensity and silver concentration). The surface structure of optically shaped films were studied by atomic force microscopy.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 2001
- Accession Number
- ADP011507
Entities
People
- M. Frumar
- M. Vlcek
- M. Vleek
- S. O. Kasap
- Thomas Wagner
Organizations
- University of Pardubice