HI: We are looking for large band gap materials to be ion beam sputterring deposited onto nanosized ZnS, CdSe or SiO2 particles. Does anyone know which choice is the best for each of the above materials? My difficulty is: 1. My chamber is an UHV chamber. We do not like to use high vapor pressure materials as targets, such as Zn related compounds (to avoid contamination of the chamber by Zn); 2. The lattcie constants of the films must match with the nanoparticles. Thank you very much. Weijie abstract200@yahoo.com __________________________________________________ Do You Yahoo!? Yahoo! Auctions - buy the things you want at great prices http://auctions.yahoo.com/