Low Dimensional Mid and High Entropy Chalcogenides: New Functional Materials for Energy Applications Abstract

A. Salehi-Khojin
University of Illinois at Chicago,
United States

Keywords: VO2 thin films, graphene


The demand for new functional materials requires that we expand our search beyond conventional compositions to more exotic ones realized via unconventional design rules. Generating mid- and high-entropy structures are emerging strategies to stabilize materials entropically for the enhanced functional properties that are not simple linear combinations of the individual component phases. Thus far, this concept has mainly been explored for 3D materials; the potential of high entropy in lower dimensional materials, which by itself imparts attractive functionality (e.g., electronic, catalytic), has yet to be explored. In this talk, I will discuss the rich space of low-dimensional (1D and 2D) mid-and high-entropy metal chalcogenide materials to discover; (i) electrocatalysts with transformational potential to selectively convert carbon emissions into liquid fuel, (ii) electronic materials with tunable bandgap for operation at high temperatures, and (iii) lubricant solid materials for operation at high loads and air environment.