Semiconducting nanocrystals and quantum dots have realized commercialization for several technologies, including lighting and display technologies. However, their potential is limited by issues such as inadequate stability, concerns over heavy metal content, and poor quantum yields in the blue spectral region. In this talk I demonstrate our recent progress addressing these issues through colloidal nanostructures that address each of these issues. In the case of Pb-free halide perovskites, I will show our progress in developing Bi-based halide perovskite NCs that have composition-tunable photoluminescence. I will also show how Zintl compounds can be used as a precursor to fabricate layered silicides and germanides, that can be subsequently deintercalated to form colloidal nanosheets with controllable composition and optical properties.<br/>

Colloidal Pb-free halide perovskite and group IV nanomaterials

2019 Fall National Meeting

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