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DTSTART:20220313T100000
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DTSTART;TZID=America/Los_Angeles:20221116T160000
DTEND;TZID=America/Los_Angeles:20221116T173000
DTSTAMP:20260614T015602
CREATED:20221027T171833Z
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UID:25184-1668614400-1668619800@www.chemistry.ucla.edu
SUMMARY:Jeffrey I. Zink Inorganic Chemistry Seminar Series: Emily Tsui
DESCRIPTION:Flyer: Prof. Emily Tsui Flyer \nMeet the Speaker: 11 a.m.\, YH 3096 \nTitle: Organometallic Chemistry at Quantum Dot Surfaces \nAbstract: 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.
URL:https://www.chemistry.ucla.edu/seminars/jeffrey-i-zink-inorganic-chemistry-seminar-series-emily-tsui/
LOCATION:Mani L. Bhaumik Centennial Collaboratory\, 607 Charles E. Young Dr.\, East\, Los Angeles\, CA\, 90095\, United States
CATEGORIES:Inorganic,Seminars
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