Inorganic Chemistry Seminar: Dr. Amy Prieto, Colorado State University

October 16, 2018 - 12:00 PM - 01:00 PM
Speaker: 

Dr. Amy Prieto

Title "Inexpensive, Efficient Approaches for Energy Production and Storage"

 

 We are interested in developing new synthetic methods for nanoscale materials with applications in energy conversion and storage. For this talk, I will focus first on using photovoltaic devices to produce energy, and in particular the synthesis and characterization of Cu2ZnSnS4 nanoparticles. The structure-property relationships for these particles can be significantly modified as the metal and chalcogen stoichiometries are tuned.  Second, I’ll discuss our efforts to develop new architectures for rechargeable Li-ion batteries for storing that energy. We are working to incorporate high surface area structures of a novel anode material into a new battery architecture wherein the current collector is conformally coated with an electrolyte made by electrochemical deposition, then surrounded by the cathode electrode. The significant advantage is that the diffusion length for Li+ between the cathode and anode will be dramatically reduced, which should lead to much faster charging rates. The general theme between both topics is the development of new synthetic methods for useful materials with an eye toward non-toxic, earth abundant chemicals and reasonable manufacturing methods.

 

 

M. C. Schulze, R. K. Schulze, A. L. Prieto "Electrodeposited thin-film CuxSb anodes for Li-ion batteries: Enhancement of cycle life via tuning of film composition and engineering of the film-substrate interface" J. Mater. Chem. A20186, 12708-12717.


 

M. Braun, L. Korala, J.  M. Kephart, and A. L. Prieto, “Synthetic Control of Quinary Nanocrystals of a Photovoltaic Material: The Clear Role of Chalcogen Ratio on Light Absorption and Charge Transport for Cu2ZnSn(S1-xSex)4”, ACS Appl. Energy Mater.2018 1(3), 1053-1059.


 

Location: 

Carol Lynch Lecture Hall

Chemistry Complex

Host: Dr Goldberg

inquires rvargas@sas.upenn.edu

Department of Chemistry

231 S. 34 Street, Philadelphia, PA 19104-6323

215.898.8317 voice | 215.573.2112 fax | web@chem.upenn.edu