American Chemical Society
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Thursday, February 16, 2012 Meeting


Emily Weiss
Dr. Emily Weiss

Assistant Professor
Department of Chemistry
Northwestern University

“The Chemistry of Nanocrystals”

Date:  Thursday, February 16, 2012

Zhivago Restaurant
9925 Gross Point Road
Skokie, IL

Cost:  $35 for members of ACS and their guests, $37 for non-members, and $20 for students, retired, or unemployed

Dinner reservations are required and should be received in the Section Office via phone (847-391-9091), email (, or web by noon on Tuesday, February 14.   PLEASE HONOR YOUR RESERVATIONS.  The Section must pay for all food orders.  No-shows will be billed.  Seating will be available for those who wish to attend only the meeting.


5:30 - 6:30 PM · Job Club

5:30 - 6:30 PM · Pre-Dinner talk
5:30 - 6:30 PM · Social Hour
6:30 - 7:30 PM · Dinner
7:30 PM · General Meeting and after-dinner talk

Pre-Dinner Presentation:  “Not So Magic: How Kinetics May Explain the Existence of Magic-Sized Semiconductor Clusters”

Abstract:  Researchers continue to demonstrate the remarkable potential of semiconductor nanocrystals for a wide range of applications (LEDs, photovoltaics, biological labeling, etc…).  However, commercial sources of nanocrystals are prohibitively expensive and lack the necessary scale for industrial uses.  In large part, this is due to the fact that their synthesis has gone largely unchanged for twenty years, despite being a laborious and irreproducible procedure that relies upon guess-and-check methodologies to control nanocrystal size and surface composition.  I will present studies aimed at deciphering the complex nature of nanocrystal growth aimed towards a more facile and controllable synthesis.

Biography:  Dr. Chris M. Evans is currently a postdoctoral researcher in Emily Weiss’ group at Northwestern University.  He received his Ph.D from the University of Rochester in 2011 working under the advisement of Todd Krauss.  His thesis work focused on mechanistic investigations of nanocrystal formation and was highlighted in Chemical and Engineering News.  Since joining Emily Weiss’ group in June of 2011, Chris has studied methodologies for controlling nanocrystal surface chemistry and has furthered his work on nanocrystal growth dynamics. 

After Dinner Presentation:  “The Chemistry of Nanocrystals”

Abstract:    The most general and influential feature of nanostructures is their high surface area-to-volume ratio. The chemistry of the surfaces of nanostructures therefore impact their optical, structural, and chemical properties. We will explore the interaction of colloidal nanostructures – specifically, quantum dots – with the organic ligands adsorbed to their surfaces, and how we can use surface chemistry to enhance the processes within these particles that are desirable for their application in solar energy conversion.

Biography: Dr. Emily A. Weiss is an Assistant Professor in the Department of Chemistry at Northwestern University.  She received her doctorate in Chemistry at Northwestern University with Mark Ratner and Michael Wasielewski, and was a postdoctoral scholar in George M. Whitesides’ lab at Harvard prior to joining the faculty.  Dr. Weiss’ research program is focused on the influence of the surface chemistry of colloidal quantum dots on their optical properties.  She is the recipient of a Department of Energy Early Career Research Award, a Packard Foundation Fellowship for Science and Engineering, and a Presidential Early Career Award for Scientists and Engineers (PECASE).

Map and Directions

Parking: Free in the lot. Parking is also available at Keeler Avenue and Gross Point Road.  




Last updated 2/7/12
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