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  _  __   __   __    _  __   __   __   ______   
 | |/ //  \ \\/ //  | |/ //  \ \\/ // |      \\ 
 | ' //    \ ` //   | ' //    \ ` //  |  --  // 
 | . \\     | ||    | . \\     | ||   |  --  \\ 
 |_|\_\\    |_||    |_|\_\\    |_||   |______// 
 `-` --`    `-`'    `-` --`    `-`'   `------`

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Text this: Competition between diagonal and off-diagonal coupling gives rise to charge-transfer states in polymeric solar cells