Tailor-made chalcogenide colloids: tuning size, composition, and structure of nanomaterials

Maksym Yarema (D-ITET)

Colloidal chalcogenide nanocrystals are convenient building blocks of various solution-processed devices, such as displays, photovoltaics, thermoelectrics, and phase-change memory. Likewise, chalcogenide colloids are handy materials for the fundamental and use-inspired research, featuring size-dependent optical and electronic properties in addition to composition dependences and structure diversity. In this talk, we will summarize the state-of-the-art for the colloidal chalcogenide nanocrystals, outline challenges and future directions in the field. In particular, we will focus on multicomponent nanocrystals, for which composition-dependent effects are superimposed on size dependences. We will also discuss opportunities for chalcogenide colloids with metastable and amorphous structures.

Overview Materials Colloquium 2019