fig6

Figure 6. (A) (left) Fabrication method for sulfur-doped iodination, including photographs of the Cu and CuI thin films. (right) DFT calculation of doping formation energy and doping concentration of sulfur during vapor and liquid iodination^[28]. Copyright 2022 American Chemical Society; (B) Hole carrier concentration and mobility of selenium-doped CuI films^[109]. Copyright 2021 John Wiley & Sons, Inc; (C) Defect complex structure of Cs-doped CuI thin film^[110]. Copyright 2022 American Chemical Society. CuI: Copper iodide; DFT: density functional theory.