Photoelectrochemistry: Enhanced Photoresponse of FeS2 Films: The Role of Marcasite–Pyrite Phase Junctions (Adv. Mater. 43/2016)

The beneficial role of marcasite in pyrite thin films for photoelectrochemical applications is reported by J. P. Hofmann and co-workers on page 9602. A bulk heterojunction with staggered band alignment at the pyrite–marcasite interface enhances charge-carrier separation and leads to a dramatic increase of photocurrent in the FeS2 films.