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  • PhD Defense

    Fri, Feb 01, 2019 @ 01:01 PM - 02:00 PM

    Mork Family Department of Chemical Engineering and Materials Science

    Conferences, Lectures, & Seminars

    Speaker: Shanyuan Niu, Ph.D. Candidate, Materials Science

    Talk Title: Perovskite Chalcogenides: Emerging Semiconductors for Visible to Infrared Optoelectronics

    Abstract: Rational design of new materials or identification of novel functionalities in underexplored materials, especially semiconductors, has been a key contributor to various electronic, photonic, and energy technologies. Transition metal perovskite chalcogenides (TMPCs), an emerging class of materials with rich tunability and functionality, are explored as stable, environmentally friendly semiconductors for optoelectronic applications. They can be viewed as the inorganic alternatives to hybrid halide perovskites, and chalcogenide counterparts of perovskite oxides with desirable optoelectronic properties in the visible to infrared part of the electromagnetic spectrum. TMPCs with perovskite and related structures can adopt three-dimensional, quasi-two-dimensional, and quasi-one-dimensional structural networks. Shanyuan will talk about the synthesis, characterization, and physical properties of TMPCs. The focus will be on several branches, including photovoltaic potential and anomalous bandgap evolution in three-dimensional and quasi-two-dimensional TMPCs, and building infrared optical anisotropy in quasi-one-dimensional TMPCs.

    Location: Charles Lee Powell Hall (PHE) - 223

    Audiences: Everyone Is Invited

    Contact: Karen Woo/Mork Family


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