%0 Conference Proceedings %T synthesis and optical analysis ofZnO and ZnO:Agnanopowders via modified sol-gel method %A Shayani Rad, Maryam %A Kompany, Ahmad %A علی خرسند زاک %A مجید ابراهیمی ابریشمی %J 1th International Conference; Nanostructures and Nanomaterials Science and Applications %D 2012