This study explores the structural, electronic, and optical properties of sandwich-structured thin films composed of WO, MoWO, and MoO as window layers on VO/WO a physical vapor deposition method. Morphological analysis demonstrates the evolution of distinct nanowires, offering insights into the lattice strain of the VO layer toward high-performance thermochromatic devices. Temperature-dependent sheet resistivity is investigated, showcasing significant improvements in conductivity for samples with MoO as a window layer. The electrical and optical properties of the MoO/VO/WO device showed a phase transition temperature () of 36.8 °C, a transmittance luminous () of 54.57%, and a solar modulation ability (Δ) of 12.43. This comprehensive analysis contributes to understanding the growth of nanowires on multi-layered thin films, offering valuable insights into potential applications in bright windows.
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