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SUMMARY:Light-to-Heat (Photothermal) Conversion Promotes High Activation Ba
 rrier Reactions
LOCATION:Chemistry, A101
TZID:America/Denver
DTSTART:20240219T160000
UID:2026-04-24-07-21-37@natsci.colostate.edu
DTSTAMP:20260424T072137
Description:About the Seminar:\n\nPhoton-driven processes have become a pow
 erful tool for achieving challenging bond cleavages and formations. Photoc
 atalysis offers temporal and spatial control with low-energy light\, which
  has been widely advantageous for efficiently building molecular complexit
 y from simple starting materials. The judicious choice of photocatalysts e
 nables the precision of reactivity that is rarely achieved with other form
 s of catalysis and heating. An underused area of photocatalysis is light-t
 o-heat (photothermal) conversion. Irradiation of specific nanoparticles or
  dyes with visible light creates intense thermal gradients in a phototherm
 al conversion process. In contrast to bulk heating\, where the temperature
  remains uniform across a reaction medium\, substrates would only experien
 ce thermal energy within a few nanometers of excitation under temporal hea
 ting. Consequently\, this process uses irradiation to drive chemical proce
 sses at high temperatures with temporal and spatial control. I will show t
 his phenomenon as applied to challenges such as chemical recycling to mono
 mer\, broad-spectrum wavelength photocontrolled polymerizations\, intramol
 ecular rearrangements\, and intermolecular coupling reactions.\n\n&nbsp\;\
 n\nAbout the Speaker:\n\nErin is an assistant professor in the Department 
 of Chemistry at Princeton University. Erin received her Bachelor of Scienc
 e from the University of Wisconsin-Green Bay\, and proudly completed her P
 hD at Colorado State University in collaboration with Professor Tom Rovis 
 and Professor Abby Doyle in 2018. She spent two years as a Cornell Preside
 ntial Postdoctoral Fellow conducting research in the lab of Professor Bret
 t P. Fors at Cornell University and started her independent career there i
 n 2020. The research in the Stache Lab unites areas of synthetic organic c
 hemistry\, photochemistry\, inorganic materials\, and polymer chemistry fo
 r new applications in materials science and synthesis. We apply new method
 s in catalysis to develop new polymerization strategies to access degradab
 le polymers or materials with new properties A major focus of her research
  involves the underused area of photocatalysis – light-to-heat (photothe
 rmal) conversion. 4:00 pm
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