فهرس المقالات Reza Hemmatzadeh المقاله 1 - Improving optical absorptivity of natural dyes for fabrication of efficient dye-sensitized solar cells 10.1186/2251-7235-7-57 Reza Hemmatzadeh Ahmad Mohammadi Journal of Theoretical and Applied Physics , العدد 1 , السنة 0 , زمستان 2013