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G. Ramanath
— Director, Center for Future Energy Systems (CFES)
Rensselaer Polytechnic Institute
Education:
— B. Tech., Metallurgical Engineering,
Indian Institute of Technology, Madras (now Chennai), India, 1990
— M.S., Materials Science and Engineering, University of Cincinnati,
1993
— Ph.D., Materials Science and Engineering, University of Illinois,
1997
Career Highlights:
Ramanath joined the Rensselaer faculty in
fall 1998 after spending four months in 1998 as a visiting scientist
in the physics department at Linköping University, Sweden.
Prior to that, he worked for a year as a member of the technical
staff at Novellus Systems Inc., San Jose, Calif. Ramanath holds
four patents and has been an invited speaker for many organizations,
including the Indian Institute of Technology in Guwahati, India.
He earned a National Science Foundation CAREER Award in 2000, an
IBM University Research Partnership Award in 1999 and 2000, a Materials
Research Society (MRS) Graduate Student Award at the Materials Research
Society Fall Meeting in Boston in 1996, and Best Poster Award at
the MRS Fall Meeting in Boston in 1992. His doctoral work was cited
in Technology News in Solid State Technology in February
of 1997 and in Wafer News in December of 1996.
Research Areas:
Ramanath's current research interests are
in the areas of thin film electronic materials and nanostructures
with emphasis on exploring new materials and architectures for future
micro- and nano-devices, and understanding the relationships between
atomic-level structure and chemistry, and properties. Ramanath is
working to create (synthesis, assembly, processing) oriented molecular
units and architectures (e.g., interconnected metal and semiconductor
nanoclusters and nanotubes assemblies, monomolecular layers) through
self-assembly, deposition, lithography, templating, and surface
and interface modification. He is aiming to understand novel thermal,
electrical, and mechanical properties. In his work with thin film
electronic materials, he is seeking atomistic understanding of pathways
and kinetics of interfacial reactions, phase formation and microstructure-stability-property
relationships in alloys and layered structures during film growth.
In addition to the aforementioned vapor-phase and wet-chemical processing
routes and nanofabrication techniques, he uses multiple characterization
tools including electron microscopy (conventional and high resolution
TEM, diffraction, SEM), XRD, and various spectroscopies (e.g., RBS,
XPS, AES, SIMS, EDX, IR, Raman), AFM, in situ electrical
measurements during deposition and annealing.
Selected Publications:
B.Q. Wei, R. Vajtai, Y. Jung, J. Ward, Y.
Zhang, G. Ramanath, and P.M. Ajayan, "Organized Assembly of
Carbon Nanotubes, Nature, 416, 495 (April 2002).
A. Krishnamoorthy, K. Chanda, S.P. Murarka, J.G.
Ryan, and G. Ramanath, "Self Assembled Near-Zero Thickness
Molecular Layers as Diffusion Barriers for Cu Metallization,"
Applied Physics Letters 78, 17, 2467 (2001).
Z. Zhang, P.M. Ajayan, J. Vacik, Y. Xu, and G.
Ramanath, "Growth, Structure, and Optical Properties of Carbon-Reinforced
Silica Fibers," Applied Physics Letters 78, 24,
3794 (2001).
Z.J. Zhang, B. Wei, R. Vajtai, J. Ward, G. Ramanath,
and P.M. Ajayan, "Select Pathways to Carbon Nanotube Film Growth,"
Advanced Materials 13, 23, 1767 (2001).
Y.-P. Zhao, B.Q. Wei, P.M. Ajayan, G. Ramanath,
T.-M. Lu, G.-C. Wang, A. Rubio, and S. Roche, "Frequency Dependent
Electrical Transport in Carbon Nanotubes," Physical Reviews
B, 64, 201402R (2001).
Z.J. Zhang, B.Q. Wei, G. Ramanath, and P.M. Ajayan,
"Substrate-Site Selective Growth of Aligned Carbon Nanotubes,"
Applied Physics Letters 77, 23, 3764 (2000).
G. Ramanath, J.E. Greene, J.R.A. Carlsson, V.C.
Hornback, D.J. Allman, and L.H. Allen, "W Deposition and Titanium
Fluoride Formation: Reaction Path and Mechanisms," Journal
of Applied Physics, 85, 1961 (1999).
G. Ramanath, J. Carlsson, J. Greene, V. Hornback,
D. Allman, and L. Allen, "Gas-Phase Transport of WF6 Through
TiN Nanopipes During W Chemical Vapor Deposition on TiN/Ti/SiO2
Structures for Integrated Circuit Fabrication," Applied
Physics Letters 61, 3179 (1996).
S.L. Lai, J. Guo, V. Petrova, G. Ramanath, and
L.H. Allen, "Size-Dependent Melting of Small Sn Particles:
Nanocalorimetric Measurements," Physical Review Letters
77, 99 (1996).
G. Ramanath, H. Xiao, L. Yang, A. Rockett, and
L. Allen, "Evolution of Microstructure of Nanocrystalline Mo-Cu
Thin Films During Annealing," Applied Physics, 78,
2435 (1995).
Contact Information:
G. Ramanath
111 Materials Research Center
Rensselaer Polytechnic Institute
110 Eighth Street
Troy, N.Y. 12180 USA
(518) 276-6844
E-mail: ramanath@rpi.edu
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