Chemistry Faculty:
Marcus D. Lay, Ph.D.

Assistant Professor

Phone: 706-542-1985
E-mail: mlay@chem.uga.edu

Biographical Information

Professor Lay received his B.S. and Ph.D. from the University of Georgia in 1998 and 2003, respectively. He was a National Research Council Postdoctoral Fellow at the Naval Research Laboratory in Washington D.C. from 2003 to 2004 and a Postdoctoral Research Scientist at Columbia University from 2004 to 2005 before joining the faculty at the University of Georgia in 2005.

Research Interests

The Lay research group is primarily concerned with understanding and manipulating nanometer-scale systems. This work often involves the investigation of systems with electronic and sensor applications, such as carbon nanotubes, SAMs and biomolecular self-assembly. Many of the device fabrication and characterization techniques we use have the advantage of occurring at room temperature. This opens up the possibility of creating electronic devices that can be deposited on heat-sensitive substrates (like polymers and glass).

Electrodeposition and other surface science methods are used to create novel quantum-confined semiconducting materials. These materials are studied and manipulated with the goal of enhancing their electronic and optical properties, as well as obtaining a fundamental understanding of the dependence of observed quantum confinement effects on size and shape. Additionally, the deposition of SAMs under potential control is of interest. SAMs have applications in biological sensors, molecular computing, modification of surface adhesion/wettability (i.e. in chromatography columns) and surface passivation.

Publications

1. Marcus D. Lay, James P. Novak, and Eric S. Snow, Simple route to large-scale ordered arrays of liquid deposited carbon nanotubes, Nano Lett., 4 (2004) 603-606.
2. Eric S. Snow, James P. Novak, Marcus D. Lay, and F. Keith Perkins, 1/f noise in single-walled carbon nanotube devices, Appl. Phys. Lett., 85 (2004) 4172-4174.
3. Eric S. Snow, James P. Novak, Marcus D. Lay, Eric H. Houser, F. Keith Perkins, and Paul M. Campbell, Carbon nanotube networks: Nanomaterial for macroelectronic applications, J. Vac. Sci. & Technol. B, 22 (2004) 1990-1994.
4. James P. Novak, Marcus D. Lay, F. Keith Perkins and Eric S. Snow, Carbon nanotube networks for electronics on polymeric substrates, Solid State Electron., 4 (2004) 1753-1756.
5. Marcus D. Lay, James P. Novak, and Eric S. Snow, Polymer coated CNT networks for chemical-specific gas detection, Appl. Phys. Lett., in preparation.
6. Marcus D. Lay and John L. Stickney, Te atomic layer formation from a basic solution: its use in an EC-ALE cycle for CdTe formation, J. Electrochem. Soc., 151 (2004) C431-C435.
7. Marcus D. Lay and John L. Stickney, Electrodeposition of Au-Cd Alloy Nanostructures on Au(111), J. Am. Chem. Soc., 125 (2003) 1352-1355.
8. Marcus D. Lay, Kris Varazo, and John L. Stickney, Formation of Sulfur Atomic Layers on Au from Aqueous Solutions of Sulfide and Thiosulfate:  Studies using EC-STM, UHV-EC, and TLEC, Langmuir, 19 (2003) 8416-8427.
9. Marcus D. Lay and John L. Stickney, High-Resolution Electrochemical Scanning Tunneling Microscopy (EC-STM) Flow-cell Studies, J. Phys. Chem. B, 107 (2003) 10598-10602.
10. Marcus D. Lay, Kris Varazo, Nattapong Srisook, and John L. Stickney, Cd Underpotential Deposition (upd) from Sulfate on Au(111): Studies by In- Situ STM and UHV-EC, J. Electroanal. Chem., 554-555 (2003) 221-231.
11. Billy H. Flowers Jr., Travis L. Wade, Marcus D. Lay, John W. Garvey, Uwe Happek, and John L. Stickney, Atomic Layer Epitaxy of CdTe using an Automated Electrochemical Thin-Layer Flow Deposition Reactor, J. Electroanal. Chem., 524 (2002) 273-285.
12. Kris Varazo, Marcus D. Lay, Thomas A. Sorenson, and John L. Stickney, Formation of the First Monolayers of CdTe on Au(111) by Electrochemical Atomic Layer Epitaxy EC-ALE: Studied by LEED, Auger, XPS, and In-situ STM, J. Electroanal. Chem., 522 (2002) 104-114.

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