Boosted CO2 reduction using ultra-thin TiO2 photocatalyst films on nanocavities

We created an ultra-thin film photocatalytic light absorber (UFPLA) with 2~22-nm-thick TiO
2
films. The UFPLA structure conquered the intrinsic trade-off between optical absorption and charge carrier extraction efficiency and therefore boosted CO
2
reduction efficiency. © 2019 The Author(s)