Fig. 1. Preparation process of V₂O₅/MWCNT composite films

Fig. 2. SEM maps of the thin film surface

Fig. 3. X-ray diffraction patterns of V₂O₅/MWCNT composite films

Fig. 4. XPS spectrum of V₂O₅/MWCNT composite films

Fig. 5. Raman spectra of V₂O₅/MWCNT composite films

Fig. 6. Effect of rotational speed， annealing time and temperature on the film transmittance

Fig. 7. Curve of （αℎν）^1/2 with the photon energy ℎν of V₂O₅/MWCNT composite films

Fig. 8. Transmittance of V₂O₅/MWCNT composite film in the wavelength range of 600~1 200 nm under different applied voltages

Fig. 9. Resistance test structure and resistance-temperature curve