Optical absorption and applications of the ABO4 (AÂ =Â Ca, Pb and BÂ =Â Mo, W) semiconductors

- The ABO4 (A = Ca, Pb and B = Mo, W) semiconductors present a high optical absorption.
- The optical properties are split on chemical species contributions.
- The largest contribution to the absorption corresponds to the inter-species B-O transitions.
- These materials present large efficiencies as multi-gap solar cells.