Fig. 2
From: High spectral resolution of gamma-rays at room temperature by perovskite CsPbBr3 single crystals
Architecture and electrical properties for CsPbBr3 detectors. a I and II depict two different designs with asymmetrical and symmetrical electrode materials, and their corresponding energy level diagrams. b Typical high performance Ga/CsPbBr3/Au detector. c, e Band diagrams of two different CsPbBr3 detectors under large reversed electric fields. Note that the “+,” “−” and Φn and Φp represent the forward and reversed bias and Schottky barrier for electron and hole at the semiconductor–metal interface, respectively. d, f Typical I–V characteristic curve of the Type I (Ga/CsPbBr3/Au) and Type II (Au/CsPbBr3/Au) detectors
