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Jeffrey I. Zink Inorganic Chemistry Seminar Series: Emily Tsui

Inorganic, Seminars

November 16, 2022 4:00 pm - 5:30 pm
Mani L. Bhaumik Centennial Collaboratory
607 Charles E. Young Dr., East
Los Angeles, CA 90095 United States
Speaker Professor Emily Tsui


Flyer: Prof. Emily Tsui Flyer

Meet the Speaker: 11 a.m., YH 3096

Title: Organometallic Chemistry at Quantum Dot Surfaces

Abstract: Due to their tunable optoelectronic properties, colloidal semiconductor quantum dot nanocrystals are useful in applications like displays, photovoltaics, and photocatalysis. Chemistry at nanocrystal surfaces, including redox processes, association/dissociation, and other structural rearrangements, has an outsize effect on the nanocrystal properties, but is challenging to study with typical spectroscopic methods. We show that organometallic fragments like transition metal carbonyl complexes can act as strongly-bound X-type or Z-type ligands to the nanocrystal surfaces, and that these species can be useful spectroscopic reporters of surface chemistry. These functionalized nanocrystals therefore enable in situ measurements of surface stoichiometry and surface charge under photoexcitation and during photocatalysis.

Professor Emily Tsui

Inorganic, Seminars
Professor Emily Tsui
Professor Emily Tsui