Fig. 3: Electronic structure and transport properties.
From: Highly oriented semiconducting polymer nanofilm with enhanced crystallinity
a Temperature (T) dependence of magnetic susceptibility (χ) under the magnetic field B of 1 T. Inset is the linear fitting of χT~T plot. b UV (left) and fluorescence (right) spectra of nanofilm and spin-coated film. c Size-dependent the density of states at Fermi level (N(EF)) and work function of the nanofilm relative to the spin-coated film with a thickness of 2 μm. d Plot of ln(σ)~T-1/3 fitting from the temperature-dependent resistance (R~T) of the nanofilm (inset), σ stands for electrical conductivity. e Plot of W~T for nanofilm by using double logarithmic coordinate axis, W represents reduced activation energy. The dash line exhibits the characteristic of insulator and metal. f Hall resistance (VH/I) measured at different temperatures for nanofilm. Insets are the calculated charge carrier density (n) and mobility (μ) in the nanofilm. g Magnetoresistance (MR) of the nanofilm at various temperatures. h Temperature dependence of inelastic scattering length λφ (top) and time τφ (bottom) extracted from magnetoresistance. i Magnetic field (B) dependent work function of the PANI nanofilm extracted from KPFM surface potential. Insets are EPR spectra of nanofilm compared with spin-coated film and bulk.
