Multichromic Vanadium Pentoxide Thin Films Through Ultrasonic Spray Deposition

Vanadium pentoxide (V2O5) is a highly promising material for optoelectronic applications due to its wide optical band gap, significant thermal/chemical stability, and intriguing multichromic properties. Nonetheless, the production of uniform crack-free V2O5 thin films over large areas via conventional deposition methods remain be challenge. In this work, we demonstrate microscopically uniform, area (15 cm × 15 cm), nanocrystalline onto fluorine-doped tin oxide (FTO) coated glass substrates ultrasonic spray (USD) method. Thin-film formation behavior, microstructural properties deposited were investigated as function post-deposition annealing temperature. Electrochromic performance fabricated up an was monitored using cyclic voltammetry (CV), where 3 different coloration states observed under applied potentials. devices with found stable 1000 cycles. Results presented herein provide new roadmap through USD method, which can readily extended vast number other functional metal systems.