Synthetic control over polymorph formation in the d-band semiconductor system FeS₂.

ABSTRACT: Pyrite, also known as fool's gold is the thermodynamic stable polymorph of FeS₂. It is widely considered as a promising d-band semiconductor for various applications due to its intriguing physical properties. Marcasite is the other naturally occurring polymorph of FeS₂. Measurements on natural crystals have shown that it has similarly promising electronic, mechanical, and optical properties as pyrite. However, it has been only scarcely investigated so far, because the laboratory-based synthesis of phase-pure samples or high quality marcasite single crystal has been a challenge until now. Here, we report the targeted phase formation via hydrothermal synthesis of marcasite and pyrite. The formation condition and phase purity of the FeS₂ polymorphs are

SUBMITTER: Ma K 

PROVIDER: S-EPMC8549780 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature