Fig. 2: Fabrication and characteristics of BCBH and BCBH/PPy.
a Schematic diagram of the fabrication process. b SEM images of BCBH. c SEM images of BCBH/PPy. d XRD patterns; e XPS curves; f Raman curves; and g The UV-Vis-NIR absorption spectra of BCBH and BCBH/PPy. h The IR photos of BPEP under different solar fluxes.
