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Seminars And Colloquia This Week

ics Atomic
Monday, March 27, 2017
3:30 PM
Physics Building, Room 204
RESERVED
ics Nuclear
Tuesday, March 28, 2017
3:30 PM
Physics Building, Room 204
Raphael Dupre [Host: Simonetta Liuti]
Institut de Physique Nucléaire d'Orsay
"Recent Results on Hadron Tomography using the Generalized Parton Distributions"
ics High Energy
Wednesday, March 29, 2017
3:30 PM
Physics Building, Room 204
Keith Olive [Host: Peter Arnold]
University of Minnesota
"The status of Supersymmetric Dark Matter after LHC Run I and alternatives from Grand Unification"
ics Condensed Matter
Thursday, March 30, 2017
11:00 AM
Physics Building, Room 313
Gaurav Giri [Host: Seunghun Lee]
University of Virginia, Chemical Engineering
"Understanding and Controlling Organic Molecule and Metal Organic Framework Crystallization "
ABSTRACT:

Small organic molecules have had a dramatic impact on our health and daily life over the past century. Small molecule pharmaceuticals have increased human lifespans, and organic pigments have expanded in use in textiles and displays. This impact is set to accelerate in the near future, as small molecules are explored for novel applications such as organic electronics, or metal-organic frameworks for chemical separations, catalysis and sensing. One of the major barriers for using small organic molecules for new applications is the limited understanding we possess on how molecules aggregate together to form different crystal habits and phases. Different crystal structures and morphologies can have wildly varying physical, chemical and physiological properties. Thus, if we do not control the crystallization organic molecules, we cannot predict its behavior for the aforementioned applications. Understanding the crystallization process can also help form metastable phases. These metastable phases can be more useful than the equilibrium phase for many applications. Metastable phases permit tunable optical bandgap for optoelectronics, control over pore size and shape in metal organic frameworks (MOF), and increased bioavailability in pharmaceuticals. General methods used to create metastable phases, like confinement or rapid cooling, require small length scales and extreme rates of heat and mass transfer. Moreover, these processes need precise control to get reliable results. This talk will focus on flow coating and microfluidic methods of controlling organic molecule and MOF crystallization characteristics, and the use of these materials for various applications.

ics Special Colloquium


Friday, March 31, 2017
9:00 AM
The Rotunda, Room Dome Room
Note special time.
Note special room.
George Crabtree [Host: Bellave Shivaram]
Joint Center for Energy Storage Research (JCESR) Argonne National Laboratory and University of Illinois at Chicago
"Storage at the Threshold: Li-ion Batteries and Beyond"
ABSTRACT:

The high energy density and low cost of lithium-ion batteries have created a revolution in personal electronics through laptops, tablets, smart phones and wearables, permanently changing the way we interact with people and information.  We are at the threshold of similar transformations in transportation to electric cars and in the electricity grid to renewable generation, smart grids and distributed energy resources.  Many aspects of these transformations require new levels of energy storage performance and cost that are beyond the reach of Li-ion batteries.  Next generation beyond Li-ion batteries and their potential to meet these performance and cost thresholds will be analyzed.

George Crabtree, Elizabeth Kocs and Lynn Trahey, The energy-storage frontier: Lithium-ion batteries and beyond, MRS Bulletin 40, 1067 (2015)

Bio: George Crabtree is Director of the Joint Center for Energy Storage (JCESR) at Argonne National Laboratory and Professor of Physics, Electrical, and Mechanical Engineering at University of Illinois-Chicago (UIC).  He has wide experience in next-generation battery technology and integrating energy science, technology, policy and societal decision-making. He has led workshops for the Department of Energy on energy science and technology, is a member of the National Academy of Sciences and has testified before the U.S. Congress

 

ics Colloquium
Friday, March 31, 2017
3:30 PM
Physics Building, Room 204
Kirsten Tollefson [Host: Chris Neu]
Michigan State University
"A New Way to Look at the Sky"
ABSTRACT:

The High Altitude Water Cherenkov (HAWC) Gamma-ray Observatory was completed in March 2015 and is now giving us a new view of the sky. HAWC is a continuously operating, wide field-of-view observatory sensitive to 100 GeV – 100 TeV gamma rays and cosmic rays. It is 15 times more sensitive than previous generation extensive air shower gamma-ray instruments. It serves as a “finder” telescope and monitors the same sky as gamma-ray satellites (Fermi), gravity-wave (LIGO) detectors and neutrino observatories (IceCube) allowing for multi-wavelength and multi-messenger observations.  HAWC hopes to answer questions such as "what is dark matter?” and “where do cosmic rays come from?” by observing some of the most violent processes in our Universe. I will present highlights from HAWC’s first year of operation.

To add a speaker, send an email to phys-speakers@Virginia.EDU. Please include the seminar type (e.g. Seminars and Colloquia), date, name of the speaker, title of talk, and an abstract (if available).