28 Nov
2016
28 Nov
'16
8:21 a.m.
TODAY!
Please post and forward to your groups:
________________
CENTER FOR EXCITONICS SEMINAR SERIES:
Materials and devices for the renewable synthesis of fuels and feedstocks
November 28, 2016 at 4pm/ 6-120
Ted Sargent
University of Toronto, Department of Electrical Engineering and Computer Science
[sargent001_000]
Tremendous progress in the cost-effective conversion of solar and wind energy into
electrical power brings about a new challenge: the massive (seasonal-scale) storage of
energy [1]. We focus on using computational materials science, spectroscopies including
ultrafast and synchrotron, and advances in materials chemistry, to create new catalysts
for CO2 reduction and oxygen evolution. I will discuss recent advances including a new
high-activity OER catalyst [2] and a low-overpotential CO2 reduction catalyst based on
field-induced reagent concentration [3]. I will also touch on related materials design
problems in optoelectronics, including the design of composite organic-inorganic materials
for photon-to-electron [4] and electron-to-photon [5] conversion.
[1] A. Bernstein, E. H. Sargent, A. Aspuru-Guzik, ...M. Molina, "Renewables need a
grand-challenge strategy," Nature, DOI:10.1038/538030a, 2016. [2] B. Zhang, ...
A. Vojvodic, E. H. Sargent, "Homogeneously dispersed, multimetal oxygen-evolving
catalysts," Science, vol. 352, pp. 333-337. [3] M. Liu, ... S. O. Kelley, E.
H. Sargent, "Enhanced electrocatalytic CO2 reduction via field-induced reagent
concentration," Nature, doi:10.1038/nature19060, 2016. [4] C. R. Kagan,
Efrat Lifshitz, E. H. Sargent, D. V. Talapin, "Building devices from colloidal
quantum dots," Science, 10.1126/science.aac5523, 2016. [5] Z. Ning, E. H.
Sargent, "Quantum-dot-in-perovskite solids," Nature, vol. 523, pp. 324-328,
2015.
Ted Sargent holds the rank of University Professor in the Edward S. Rogers Sr. Department
of Electrical and Computer Engineering at the University of Toronto. He holds the Canada
Research Chair in Nanotechnology and also serves as Vice President - International for the
University of Toronto. He is founder and CTO of InVisage Technologies and a co-founder of
Xagenic Inc. He is a Fellow of the Royal Society of Canada; a Fellow of the AAAS
"...for distinguished contributions to the development of solar cells and light
sensors based on solution-processed semiconductors;" and a Fellow of the IEEE
"...for contributions to colloidal quantum dot optoelectronic devices." He is
Fellow of the Canadian Academy of Engineering for "...ground-breaking research in
nanotechnology, applying novel quantum-tuned materials to the realization of full-spectrum
solar cells and ultra sensitive light detectors. The impact of his work has been felt in
industry through his formation of two start-up companies." He received the B.Sc.Eng.
(Engineering Physics) from Queen's University in 1995 and the Ph.D. in Electrical and
Computer Engineering (Photonics) from the University of Toronto in 1998.
The Center For Excitonics Is An Energy Frontier Research Center Funded By The U.S.
Department Of Energy,
Office Of Science And Office Of Basic Energy Sciences
