Supercritical CO2-assisted Amorphization of WO2.72 and its High-efficiency of Photothermal Conversion
Amorphous materials with unique atomic arrangements have attracted great attention owing to their unique optical and electronic properties. In this work, amorphization of pristine WO2.72 was successfully achieved with the assistance of supercritical carbon dioxide (SC CO2). Experimental results indicate the obtained amorphous sample has strong optical absorbance in the near-infrared (NIR) region. Furthermore, excellent photothermal conversion efficiency (PCE) of 52.5% indicates they may enable capture solar energy and convert it into thermal energy efficiently.