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Chem 278: Prof. Sheng Xu

Inorganic Chemistry, Seminars

March 3, 2021 4:00 pm
Where Via Zoom
Speaker Prof. Sheng Xu


Controlled epitaxial growth and fabrication of hybrid halide perovskites

Abstract: Organic–inorganic hybrid halide perovskites have demonstrated tremendous potential for next-generation electronic and optoelectronic devices due to their remarkable carrier dynamics. Current studies are mostly focused on polycrystals, since controlled growth of high-quality single crystals is challenging. In this presentation, I will discuss strategies that enabled the first chemical epitaxial growth of single-crystal hybrid halide perovskites. Using advanced microfabrication, homo-/hetero-epitaxy, and a low-temperature solution method, single crystals can be grown with controlled locations, morphologies, orientations, and strain levels. By a lifting off approach, single-crystal thin films can be transferred from the epitaxial substrate to a general flexible substrate. This approach opens up broad opportunities for hybrid halide perovskite materials based high-performance electronic and optoelectronic devices.

Prof. Sheng Xu

Inorganic Chemistry, Seminars

Department of Nanoengineering

University of California, San Diego