Brian S. Swartzenruber

Acting Thrust Leader, Center for Integrated Nanotechnologies
Science Thrust: Nanoscale Electronics & Mechanics

Phone: 505-844-6393
Fax: 505-284-7778
bsswart@sandia.gov

P.O. Box 5800  MS 1303                                                        
Sandia National Laboratories                                                  
Albuquerque, NM  87185


 

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Research

Brian’s research interests have focused on the structure and thermodynamics of semiconductor surfaces, atomic-scale kinetics of surface diffusion, the structure and stability of nanostructures, and electronic transport in nanowires and nanoscale contacts. His current activities center on using a two-probe nanomanipulator inside of a field-emission scanning electron microscope to measure electron conduction in nanoscale structures in their as-grown configurations, and to place nanostructures in configurations inaccessible through other means in order to perform ex situ thermal and electronic transport measurements. He is also responsible for the Scanning Probe Microscopy Lab containing: a DI3000 atomic force microscope with scanning-capacitance and conducting-probe capabilities; several scanning tunneling microscopes; and an interfacial force microscope.

Selected Publications

  • "Enhanced Thermoelectric Figure of Merit in SiGe Alloy Nanowires by Boundary and Hole-Phonon Scattering", J. A. Martinez, P. P. Provencio, S. T. Picraux, J. P. Sullivan, and B. S. Swartzentruber, J. Appl. Phys., 110(7), 074317 (2011).
  • "Understanding Ultrafast Carrier Dynamics in Single Quasi-One-Dimensional Si Nanowires", M. A. Seo, S. A. Dayeh, P. C. Upadhya, J. A. Martinez, B. S. Swartzentruber, S. T. Picraux, A. J. Taylor, and R. P. Pransankumar, Appl. Phys. Lett., 100, 071104 (2012).
  • "Multiphoton Lithography of Nanocrystalline Platinum and Palladium for Site-Specific Catalysis in 3D Microenvironments", L. Zarzar, B. S. Swartzentruber, J. Harper, D. Dunphy, J. C. Brinker, J. Aizenberg, and B. Kaehr, JACS, 134(9), 4007, (2012).
  • "Cellular Complexity Captured in Durable Silica Biocomposites," Bryan Kaehr, Jason L. Townson, Robin M. Kalinich, Yasmine H. Awad, B. S. Swartzentruber, Darren R. Dunphy, C. Jeffrey Brinker, PNAS, 109(43), 17336 (2012).
  • "Contribution of Radial Dopant Concentration to the Thermoelectric Properties of Core-Shell Nanowires", Julio A. Martinez, Jeong H. Cho, Xiaohua Liu, Ting S. Luk, Jianyu Huang, S.T. Picraux, John P. Sullivan, and B. S. Swartzentruber, Appl. Phys. Lett. 102, 103101 (2013).
  • "Measurement of Electronic States of PbS Nanocrystal Quantum Dots Using Scanning Tunneling Spectroscopy: The Role of Parity Selection Rules in Optical Absorption", B. Diaconescu, L. A. Padilha, P. Nagpal, B. S. Swartzentruber, and V. I. Klimov, Phys. Rev. Lett., 110, 127406 (2013).

Selected User Projects

  • STM Lithography for Atomically-Precise Qubit Fabrication, Ezra Bussmann, Sandia National Laboratories
  • Thermoelectric Studies of Band Engineered Nanowires, Julio Martinez, New Mexico State University
  • Nanomanipulator and AFM Studies of Single Sn/ZnO Nanowires, Tito Busani, University of New Mexico