Amorphous copper iodide: a p-type semiconductor for solution processed p-channel thin-film transistors and inverters

Amorphous p-type copper iodide (a-CuI) semiconductor and corresponding p-channel vertical TFTs are demonstrated. The a-CuI-TFTs exhibit excellent device performance, high current density of 1400 mA cm −2 and normalized transconductance of 6.46 S m −1 .