Fig. 3: Transparency of the IMO/AZO/mica heterostructure.

a Optical transmittance spectra of the IMO heteroepitaxial structure with various thicknesses. b The figure of merit as a function of thickness of IMO/AZO/mica (red), IMO films17,20,21,23,24,25,26,27,28,29,30,31,32,33,34 (black), and different TCO films on a flexible substrate14,35,36,37,38,39,40,41,42,43,44 (blue).