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J. Eur. Opt. Society-Rapid Publ. 21, 6( 2025)
Figure 6. XPS spectra of the prepared films.( a) general spectral line( 0 – 1350 eV),( b) O 1s and( c) V 2p of the pure V 2 O 5 / FTO film;( d) general spectral line( 0 – 1350 eV),( e) O 1s,( f) V 2p and( g) Ti 2p of the TiO 2-doped V 2 O 5 / FTO film.
360 ° C, reducing to 56.29 % by comparison with the initial resistance of the device. The fraction with a rapider descent rate indicates that the device undergoes the SMT effect, i. e. the thermally induced phase transition properties.
To each acquisition point, the first derivative of resistance with respect to temperature is taken and Gaussian nonlinear data fitting is used to plot the curves. According to Figure 8( c), the curve takes an extreme point at