Text this: Copper oxide thin film and nanowire as a barrier in ZnO dye-sensitized solar cells

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