This project is focused on the synthesis of a new class of semiconductors, the chalcogenide perovskites. Chalcogenide perovskites are an interesting group of materials that are highly stable and made from earth-abundant and non-toxic elements. The development of chalcogenide perovskites could lead to cheap, safe, and sustainable semiconductor devices like solar cells or LEDs. But so far, most researchers have focused only on a single chalcogenide perovskite, BaZrS₃. This project will focus on creating new sulfide perovskites, first by synthesizing the analogous oxide perovskites and then by converting the oxides into sulfides through “sulfurization.” During the 10-week program, the student will collaborate with a graduate student mentor to develop innovative synthesis methods that allow us to make new chalcogenide perovskites. In doing so, the student will learn about inorganic materials synthesis and characterization.

Scientific goals:   

• Develop methods that allow for the synthesis of new chalcogenide semiconductors
• Verify the identity of new semiconductors and characterize their key properties

Student learning goals: 

• Explore the materials chemistry of metal chalcogenides
• Become familiar with material design rules for emerging semiconductors
• Learn to use common characterization methods for inorganic materials