أرسل هذا في رسالة قصيرة: Effects of cathode confinement on the performance of polymer/fullerene photovoltaic cells in the thermal treatment

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