- Associate Professor, University of Notre Dame
- Assistant Professor, University of Notre Dame
- Postdoctoral Fellow, Pennsylvania State University
- Ph.D. in Chemistry, Stanford University
- B.S. in Chemistry, Yale University
- Joyce Award for Excellence in Undergraduate Teaching
- CAREER Award, National Science Foundation
- Union Carbide Student Innovation Recognition Program
- American Chemical Society Nobel Laureate Signature Award in Graduate Education
Research in the Kandel group centers around Scanning Tunneling Microscopy (STM). STM allows for imaging with sub-Ångstrom resolution, resulting in direct measurements of the individual atoms and molecules that make up the surfaces of materials. We use molecular-resolution imaging to investigate three broad areas of research: Gas-surface interactions and chemical reactions We produce "movies" from timed sequences of STM images that show the molecular-scale changes that occur on surfaces as they are exposed to high-kinetic-energy neutral or free-radical gas atoms. Such reactions are particularly important for surfaces exposed to active environments, such as flames, plasmas, and the upper atmosphere. Formation and structure of molecularly heterogeneous surfaces Surfaces exposed to molecules in vapor or solution can exhibit both order and randomness on the micrometer and nanometer scales. By choosing appropriate systems, we can vary molecule-molecule and molecule-surface interactions and control molecular placement and ordering on the surface. Characterization of electronically active surface-bound molecules An STM tip and a conducting surface can be used as electrodes for probing the electronic properties of individual molecules. We work with organometallic molecules with multiple metal centers, and study how local environment affects intramolecular distribution of charge, with possible applications in memory and logic circuits. Images and additional information can be found in the Kandel Group Image Gallery
- Petersen, J. P., Brown, R. D., Silski, A. M., Corcelli, S. A., Kandel, S. A. "Complex Structures Resulting from Carboxylic Acid Self-Assembly: Comparison of 2-Naphthoic Acid to Quinaldic Acid and 3-Quinoline Carboxylic Acid" 2019 Journal of Physical Chemistry C, 123 (22), pp. 13610-13614. DOI:10.1021/acs.jpcc.9b01817.
- Silski, A. M., Petersen, J. P., Brown, R. D., Corcelli, S. A., Kandel, S. A. "Scanning Tunneling Microscopy Investigation of Two-Dimensional Polymorphism of Structural Isomers" 2018 Journal of Physical Chemistry C, 122 (44), pp. 25467-25474. DOI:10.1021/acs.jpcc.8b08221.
- Brown, R.D., Corcelli, S.A., Kandel, S.A. "Structural Polymorphism as the Result of Kinetically Controlled Self-Assembly" 2018 Accounts of Chemical Research, 51 (2), pp. 465-474. DOI: 10.1021/acs.accounts.7b00522
- Petersen, J.P., Kandel, S.A. "Circuit design considerations for current preamplifiers for scanning tunneling microscopy" 2017 Journal of Vacuum Science and Technology B: Nanotechnology and Microelectronics, 35 (3), 033201. DOI: 10.1116/1.4981017
- Brown, R.D., Quardokus, R.C., Wasio, N.A., Petersen, J.P., Silski, A.M., Corcelli, S.A., Kandel, S.A. "Non-intuitive clustering of 9,10-phenanthrenequinone on Au(111)" 2017 Beilstein Journal of Nanotechnology, 8 (1), 181. DOI: 10.3762/bjnano.8.181
- Silski, A.M., Brown, R.D., Petersen, J.P., Coman, J.M., Turner, D.A., Smith, Z.M., Corcelli, S.A., Poutsma, J.C., Alex Kandel, S. "C-H...O hydrogen bonding in pentamers of isatin" 2017 Journal of Physical Chemistry C, 121 (39), pp. 21520-21526. DOI: 10.1021/acs.jpcc.7b07444