Synthesis of Cu-doped V₂O₅ thin films with improved optical and CO₂ gas sensing.

ABSTRACT: This study provides a comprehensive investigation of Cu-doped vanadium oxide (V₂O₅) thin films prepared via a sol-gel/spin-coating method, correlating dopant-induced structural and optical modifications with improved CO₂ sensing performance at room temperature. XRD confirmed the incorporation of Cu into the V₂O₅ lattice without secondary phase formation, while FE-SEM revealed a morphological transition from nanoplates to nanobelts upon Cu-doping. EDX verified uniform elemental distribution, and UV-Vis measurements indicated a reduced optical band gap, consistent with enhanced charge transport. FTIR spectra exhibited characteristic V-O vibrations, along with CO₂-related absorption bands, indicating favorable surface in

SUBMITTER: Abdelkarem K 

PROVIDER: S-EPMC12757838 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature