fig5
From: Revealing energy storage mechanism of CsPbBr3 perovskite for ultra-stable symmetric supercapacitors

Figure 5. EDS mapping of CsPbBr3 electrodes in SS-0.1 after the electrochemical test. (A) the layered image of mapping. Mapping result of different elements (B) F; (C) P; (D) Cs; (E) Br; (F) Pb.