Text this: Polarized Cu-Bi site pairs for non-covalent to covalent interaction tuning toward N₂ photoreduction

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