A Highly Hydrophilic Thin Film Under 1 μW/cm ² UV Illumination

Abstract

Super-hydrophilic titanium oxide films show excellent potential as anti-fogging and self-cleaning surfaces; however, until now these properties have been limited to outdoor applications, since the high wettability condition requires sunlight-intensity UV radiation. Here is reported a novel TiO2/WO3 film (see Figure) that exhibits such a hydrophilic conversion even under regular indoor lighting.