|
| |
| |
| |
 |
|
| |
|
| |
|
 |
David
Allara
Professor of Chemistry and
Professor of
Materials Science
104 Chemistry Building
814-865-2254
allara@matse.psu.edu |
|
Research
Interests:
• Surface
chemistry and physics involving preparation, properties,
and characterization of molecular and polymeric
thin films, modified surfaces, and materials
interfaces
• Transport,
thermodynamic, bio-response, electronic, electromagnetic
and energy conversion properties of
thin films and nanoscale structures, including
carbon nanotubes
• Complex architectures by self-and directed
assembly at surfaces
• Applications include microelectronics
processing, molecular electronics,
quantum computing, chem.-bio sensors, energy production
and conversion, nanolithography and biocompatibility
|
|
Areas of Research:
Science
interests currently are focused on surface chemistry
and physics, particularly involving molecular species as
one phase. The molecular components can range from
discrete small molecules to polymers and biologically relevant
materials. The research program is directed at characterization,
responses and fundamental understanding of molecular and
polymeric thin films, chemically and topographically modified
surfaces, and materials interfaces. Properties of
interest include charge and mass transport, thermodynamic
states, bio-response, electronic and electromagnetic responses
and energy conversion properties. Material forms of
interest include thin films, carbon and other nanotubes;
and complex architectures formed by self-and directed assembly
at a variety of material surfaces. Characterization
methods include surface infrared, Raman, X-ray photoelectron,
near edge X-ray absorption fine structure spectroscopy, and
optical ellipsometric spectroscpies (include in-situ UHV
capabilities); X-ray scattering (synchrotron), time-of-flight
secondary ion mass spectrometry, ion beam scattering, quartz
crystal microgravimetry, electrochemistry and scanning probe
microscopy (AFM/STM, including UHV capabilities). Approaches
to a fundamental understanding of these properties include
advanced quantum chemical calculations and electromagnetic
modeling for both far- and near-field responses. Recent
applications include microelectronic device processing, molecular
electronics, quantum computing, chemical and bio-sensors,
energy production and conversion, highly energetic materials
based on nanostructures, nanolithography and biocompatibility
Technology interests currently are focused
on microelectronics, including semiconductor processing and
molecular electronic devices; composite materials with tailored
interfaces; energy production and conversion using electromagnetic
fields and nanostructures; chemical and biological sensors;
biocompatibility; adhesion; and coatings. |
Technologies
impacted by research:
Microelectronics; composite materials;
energy production and conversion; chemical and biological
sensing; biomedicine, surface coatings
|
|
Journal
Articles and Publications:
1. Single Molecular Switches, Z.J. Donhauser, B.A.
Mantooth, K.F. Kelly, L.A. Bumm, J.D. Monnell, J. J. Stapleton,
D.L. Allara, J.M. Tour, and P.S. Weiss; Science, 292, 2303-2307(2001)
2. Nucleation and Growth of Calcium Phosphate onto Self-Assembled Templates by
a Solution-Formed Critical Nucleus Mechanism: Physiological Solutions, B.J. Tarasevich,
C.C. Chusuei, D.L. Allara, J.Phys.Chem.B., 2003; 107; 10367-10377
3. Nanowire-Based Molecular Monolayer Junctions: Synthesis, Assembly, and Electrical
Characterization, L.T. Cai, H. Skulason, J.B. Mattzela, J.G. Kushmerick, S.K.
Pollack, J. Naciri, R. Shashidhar, T.E. Mallouk, D.L. Allara and T. S. Mayer,
J.Phys.Chem. B, 2004, 108, 2827-2832
4. The Interaction of Vapor-Deposited Ti and Au with Molecular Wires , A.V. Walker,
T.B. Tighe, J. Stapleton, B.C. Haynie, S. Upilli, D.L. Allara, N. Winograd, Appl.Phys.Lett.,
2004, 84, 4008
5. Temperature effects on conduction through a molecular
junction, Y. Selzer, M.A. Cabassi, T.S. Mayer, D.L. Allara,
Nanotechnology, 2004, 15, S483–S488 |
|
|
|
|
|
