机构:
Qassim Univ, Coll Sci & Art ArRass, Mat Phys & Energy Lab, Arrass 51921, Saudi Arabia
Natl Res Ctr, Electron Microscope & Thin Films Dept, Phys Div, Giza 12622, EgyptQassim Univ, Coll Sci & Art ArRass, Mat Phys & Energy Lab, Arrass 51921, Saudi Arabia