Physics Program Presents
Summer Research Presentations
Wednesday, September 3, 2014
Hegeman 107
Single-molecule Conductance as a Tool for Understanding Solar Cell EfficiencyColumbia University with the Energy Frontier Research Center in the Applied Physics and Mathematics Division
By: Ingrid Stolt
In this project, Scanning Tunneling Microscope-Break Junction (STM-BJ) techniques were used to measure the single-molecule conductance of a group of compounds each containing a different central unit (a molecule sandwiched between a distinct pair of atom chains). Many of these central units have been implemented in the design of organic semiconductors for Organic Photovoltaic (OPV) devices. The goal was to use these conductance measurements to gain an understanding of the structural and electronic properties of these compounds in order to further understand why the central units lead to high/low efficiency when used in OPVs. The presentation will be a summary of the measurements done on one particular compound and how the results can be interpreted.
Electron spin resonance on-a-chip
National High Magnetic Field Laboratory
By: Henry Clark Travaligni
We discuss Electron Spin Resonance Spectroscopy (ESR), and develop a room temperature measurement set up for ESR measurements performed on a high dielectric substrate.
For more information, call 845-758-7302, or e-mail [email protected].
Location: Hegeman 107