أرسل هذا في رسالة قصيرة: Improved utilization of photogenerated charge using fluorine-doped TiO2 hollow spheres scattering layer in dye-sensitized solar cells

   _____    ______    _  _      ___       _____  
  / ___//  /_   _//  | \| ||   / _ \\    / ___// 
  \___ \\   -| ||-   |  ' ||  | / \ ||   \___ \\ 
  /    //   _| ||_   | .  ||  | \_/ ||   /    // 
 /____//   /_____//  |_|\_||   \___//   /____//  
`-----`    `-----`   `-` -`    `---`   `-----`