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

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Text this: Zinc Tin Oxide (ZTO) electron transporting buffer layer in inverted organic solar cell