Fig. 1
From: Stable blue emission and sub-gap mediated UV photodetection in lead-free 1D CsCu2Br3 single crystals

(a) Powder X-ray diffraction (PXRD) pattern of CsCu2Br3 single crystals with standard diffraction positions (red ticks, ICSD No. 49613; mp-23017). The data confirm the orthorhombic Cmcm phase without secondary phases. Inset: image of a CsCu2Br3 single crystal, (b) Crystallographic structure of CsCu2Br3 single crystals.