Fig. 1. XRD patterns of ITO/LN and LN/ITO thin films for triple deposition time

Fig. 2. SEM cross-sectional image of LN/ITO heterojunction thin film with triple deposition time

Fig. 3. AFM planar （a） and three-dimensional （b） images of LN/ITO heterojunction thin films for onefold deposition time

Fig. 4. UV-Vis absorption spectra of LN monolayer films， ITO monolayer films， and LN/ITO heterojunction thin films of the same thickness

Fig. 5. UV-Vis absorption spectra of LN/ITO heterojunction thin films before and after annealing

Fig. 6. Variable temperature Hall tests of LN/ITO heterojunction thin films