fig2
Figure 2. (A) The XRD spectra of as-prepared Sb2Te3 f-TFs; (B) The enlarged (015) peaks and the corresponding calculated crystallinity; (C) The lattice parameters; (D) The full XPS spectra; (E) and (F) XPS spectra of Sb and Te, respectively. f-TFs: Flexible thin films; XPS: X-ray photoelectron spectroscopy; XRD: X-ray diffraction.
