Transparent wood containing CsxWO3 nanoparticles for heat-shielding window applications

CsxWO3 nanoparticles were dispersed in prepolymerized methyl methacrylate (PMMA) and filled in nanopores of delignified wood to prepare transparent wood. The wood-based composite showed excellent near-infrared (NIR, ranging from 780 to 2500 nm) shielding ability and high visible light transparency. The CsxWO3/transparent wood also showed excellent mechanical properties with a fracture strength up to 59.8 MPa and modulus up to 2.72 GPa. CsxWO3/transparent wood is expected to serve as a potential material for smart-window applications.