Figure 9

XPS spectra of SWCNT film with SDBS and surfactant-free SWCNT film with heat treatment at 350 °C. (a) C1s spectra of SWCNT film with SDBS and surfactant-free SWCNT film. (b) Decomposition and fitting of C1s spectra of SWCNT film with SDBS. (c) Decomposition and fitting of C1s spectra of surfactant-free SWCNT film. (d) Na1s spectra of SWCNT film with SDBS. (e) S2p spectra of SWCNT film with SDBS.