Colloidal Quantum Dots-Based Heterostructure Nanomaterials: Synthesis, Self-Assembly and Photocatalysis
Ou Chen a, Michael Gruenwald a
a Brown University, Hope Street, 184, Providence, United States
b University of Utah, 315 S 1400 E Rm 2020, Salt Lake City, 84112, United States
Invited Speaker, Ou Chen, presentation 060
Publication date: 15th May 2025

Colloidal quantum dots (QDs) have been a subject of extensive research for several decades for their unique optical properties and versatile applications. Ongoing refinements in their synthesis have enabled the production of high-quality QDs with precise control over their size, shape, and compositions. Specifically, core-shell and other types of heterostructure QDs have garnered significant attentions, resulting in advancements that enhance their optical properties, morphology control, material stability, and their diverse applications in real-life. In this talk, I will discuss about our works on the synthesis of cadmium-chalcogenide and perovskite-type QDs and QD-metal heterostructure nanomaterials. This includes a discussion on how these anisotropic QDs can be used as fundamental building blocks for constructing intricate superlattice materials. I will also talk about the potential applications of the colloidal QD-metal hybrid nanocrystals in photocatalytic reactions, presenting our experimental findings alongside theoretical insights. 

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