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Dan Gaspar

Dan Gaspar

Energy and Efficiency S&T
Pacific Northwest National Laboratory
PO Box 999
Richland, WA 99352
(509) 375-2544

Biography

Dr. Dan Gaspar is the Technical Group Manager for the Materials Chemistry and Surface Research Group in the Energy and Efficiency Division at Pacific Northwest National Laboratory. The Materials Chemistry and Surface Research Group includes materials scientists, chemists and physicists developing detailed understanding of interfacial chemistry and physics and innovative approaches to technology development for applications such as energy efficient organic light emitting diodes (OLEDs), novel energy storage materials, enabling technologies for display, solar and energy storage devices, and separations and sensing.

The group’s research is focused on new approaches for synthesis and fabrication of new materials (bulk and thin film), as well as relating extrinsic material properties to their chemical/physical properties at the atomic, molecular, and nanoscale. The group maintains significant laboratory holdings for the synthesis and characterization of these materials and systems, including both wet chemistry capabilities and large, specialized vacuum deposition systems. Interfacial phenomena are a particular interest, including functionalization of the surfaces of nanomaterials, along with charge and mass transport across interfaces.

Research Interests

  • Dr. Gaspar’s personal research interests are focused on the application of surface analysis methods to solve challenging real world problems. Through the application and development of time-of-flight secondary ion mass spectroscopy (TOF-SIMS), X-ray photoelectron spectroscopy (XPS), electron microscopy and other techniques, he has contributed to research across a wide spectrum of subjects including the analysis of nanoscale materials, the chemistry of atmospheric aerosol particles and environmentally relevant surfaces, TOF-SIMS analysis of bacteria, semiconductor processing, and metal-semiconductor interfaces, leading to the publication of approximately 30 publications.

Education and Credentials

  • Ph.D., Chemistry, University of Chicago - 1998
  • B.S., Chemistry, Duke University - 1992

Affiliations and Professional Service

  • 2006 – 2008 Chairman (Chair-elect, past Chair) Applied Surface Science Division, AVS
  • Member of the AVS, American Chemical Society.
  • Technical Expert, International Standards Organization (ISO), Technical Committee 201 (Surface Chemical Analysis), Subcommittee 6 (Secondary Ion Mass Spectrometry).
  • Member, ASTM Committee E42 on Surface Analysis.
  • Journal reviewer, Surface and Interface Analysis, JVST, Analytical Chemistry, J. Physical Chemistry
  • Proposal reviewer, American Chemical Society, National Science Foundation, ISTC.

Selected Publications

2008

  • Baer DR, JE Amonette, MH Engelhard, DJ Gaspar, AS Karakoti, SVNT Kuchibhatla, P Nachimuthu, J Nurmi, Y Qiang, V Sarathy, S Seal, A Sharma, PG Tratnyek, and CM Wang. 2008. "Characterization Challenges for Nanomaterials." Surface and Interface Analysis 40(3-4):529-537.  doi:10.1002/sia.2726

2006

  • Cliff JB, PJ Bottomley, DJ Gaspar, and DD Myrold. 2006. "Nitrogen Mineralization and Assimilation at Millimeter Scales." Soil Biology and Biochemistry 39(3):823–826.  doi:10.1016/j.soilbio.2006.10.005

2005

  • Gaspar DJ, MH Engelhard, MC Henry, and DR Baer. 2005. "Erosion Rate Variations during XPS Sputter Depth Profiling of Nanoporous Films." Surface and Interface Analysis 37(4):417-423. 
  • Alvarez J, RG Cooks, SE Barlow, DJ Gaspar, JH Futrell, and J Laskin. 2005. "Preparation and in situ Characterization of Surfaces Using Soft-Landing in a Fourier Transform Ion Cyclotron Resonance Mass Spectrometer." Analytical Chemistry 77(11):3452-3460. 
  • Baer DR, MH Engelhard, DJ Gaspar, DW Matson, KH Pecher, JR Williams, and CM Wang. 2005. "Challenges in Applying Surface Analysis Methods to Nanoparticles and Nanostructured Materials." Journal of Surface Analysis 12(2):101-108. 
  • Cliff JB, KH Jarman, NB Valentine, S Golledge, DJ Gaspar, DS Wunschel, and KL Wahl. 2005. "Differentiation of Spores of Bacillus Subtilis Grown in Different Media by Elemental Characterization using Time-of-Flight Secondary Ion Mass Spectrometry." Applied and Environmental Microbiology 71(11):6524-6530. 
  • Mcintire TM, AS Lea, DJ Gaspar, N Jaitly, Y Dubowski, Q Li, and BJ Finlayson-Pitts. 2005. "Unusual aggregates from the oxidation of alkene self-assembled monolayers: a previously unrecognized mechanism for SAM ozonolysis?" Physical Chemistry Chemical Physics. PCCP 7:3605-3609.  doi:10.1039/b508147e

2004

  • Gaspar DJ, A Laskin, W Wang, SW Hunt, and BJ Finlayson-Pitts. 2004. "TOF-SIMS Analysis of Sea Salt Particles: Imaging and Depth Profiling in the Discovery of an Unrecognized Mechanism for pH Buffering." Applied Surface Science 231-2(Sp. Iss. SI):520-523. 
  • Cliff JB, DJ Gaspar, PJ Bottomley, and DD Myrold. 2004. "Peak Fitting to Resolve CN- isotope Ratios in Biological and Environmental Samples Using TOF-SIMS. ." In SIMS XIV, proceedings of the fourteenth international conference on secondary ion mass spectrometry and related topics, San Diego, CA, ed. Alfred Benninghoven, pp. 912-916.  Elsevier Science BV, Amsterdam, Netherlands. 
  • Cliff JB, DJ Gaspar, PJ Bottomley, and DD Myrold. 2004. "Peak Fitting to Resolve CN-Isotope Ratios in Biological and Environmental Samples using TOF-SIMS." Applied Surface Science 231-232(Sp. Iss. SI):912-916. 
  • Dubowski Y, AL Sumner, EJ Menke, DJ Gaspar, JT Newberg, RC Hoffman, RM Penner, JC Hemminger, and BJ Finlayson-Pitts. 2004. "Interactions of Gaseous Nitric Acid with Surfaces of Environmental Interest." Physical Chemistry Chemical Physics. PCCP 6(14):3879-3888. 
  • Tuan AC, JD Bryan, A Pakhomov, V Shutthanandan, S Thevuthasan, DE McCready, DJ Gaspar, MH Engelhard, JW Rogers, Jr, KM Krishnan, DR Gamelin, and SA Chambers. 2004. "Epitaxial Growth and Properties of Cobalt-doped ZnO on a-Al2O3 Single-Crystal Substrates." Physical Review. B, Condensed Matter 70(5):054424. 

2003

  • Baer DR, DJ Gaspar, MH Engelhard, and AS Lea. 2003. "Beam Effects During AES and XPS Analysis." Chapter 9 in Surface Analysis by Auger and X-ray Photoelectron Spectroscopy.  IM Publications, Chichester, United Kingdom. 
  • Baer DR, MH Engelhard, AS Lea, and DJ Gaspar. 2003. "Appendix F: Comparing Beam Damage Rates Using Susceptibility Tables." In Surface Analysis by Auger and X-ray Photoelectron Spectroscopy, ed. D. Briggs and J.T. Grant, pp. 845-856.  SurfaceSpectra Ltd. & IM Publications, Manchester, United Kingdom. 
  • Donley MS, RA Mantz, AN Khramov, V Balbyshev, LS Kasten, and DJ Gaspar. 2003. "The Self-Assembled Nanophase Particle (SNAP) Process: A Nanoscience Approach to Coatings." Progress in Organic Coatings 47(3-4):401-415. 
  • Laskin A, DJ Gaspar, W Wang, SW Hunt, JP Cowin, SD Colson, and BJ Finlayson-Pitts. 2003. "Reactions at Interfaces As a Source of Sulfate Formation In Sea-Salt Particles." Science 301(5631):340-344. 

2002

  • Gaspar DJ, AS Lea, MH Engelhard, DR Baer, R Miehr, and PG Tratnyek. 2002. "Evidence for Localization of Reaction Upon Reduction of Carbon Tetrachloride by Granular Iron." Langmuir 18(20):7688-7693. 
  • Baer DR, MH Engelhard, DJ Gaspar, AS Lea, and CF Windisch, JR. 2002. "Use and Limitations of Electron Flood Gun Control of Surface Potential During XPS: Two Non-homogeneous Sample Types." Surface and Interface Analysis 33:781-790. 
  • Batzill M, B Katsiev, DJ Gaspar, and U Diebold. 2002. "Variations of the Local Electronic Surface Properties of TiO2(110) Induced By Intrinsic and Extrinsic Defects." Physical Review. B, Condensed Matter and Materials Physics 6623(23):621-630. 
  • Cliff JB, DJ Gaspar, PJ Bottomley, and DD Myrold. 2002. "Exploration of Inorganic C and N Assimilation by Soil Microbes with Time-of-Flight Secondary Ion Mass Spectrometry." Applied and Environmental Microbiology 68(8):4067-4073. 
  • Moeller TM, ML Alexander, MH Engelhard, DJ Gaspar, ML Luna, and PM Irving. 2002. "Surface Decontamination of Simulated Chemical Warfare Agents Using a Nonequilibrium Plasma with Off-Gas Monitoring." IEEE Transactions on Plasma Science 30(4):1454-1459. 
  • Rouse AA, C Szeles, JO Ndap, S Soldner, KB Parnham, DJ Gaspar, MH Engelhard, AS Lea, V Shutthanandan, S Thevuthasan, and DR Baer. 2002. "Interfacial Chemistry and the Performance of Bromine-etched CdZnTe Radiation Detector Devices." IEEE Transactions on Nuclear Science 49(4):2005-2009. 

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