Jeffrey Hettinger

  • 1537 Citations
  • 20 h-Index
1989 …2021
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Personal profile

Research interests

Research Expertise: 
Thin Film Synthesis | Materials Characterization | Materials Processing

My current research includes:
Broad spectrum bactericidal coatings are focused on silver-eluting coatings and the control of the elution rates. These coatings are synthesized by the sputtering of silver in an oxygen-rich reactive environment forming highly soluble silver oxide coatings with excellent adhesion to surfaces with bactericidal silver-ion elution rates much higher than nanoparticle silver.

Carbide-derived carbon (CDC) is a porous carbon material with a very narrow pore-size distribution. This material is synthesized by extracting reactive metals from binary or ternary carbides creating a coordinated network of mesoscopic pores. The pore-size distribution is influenced by the method used for extraction and parameters (temperature, reactive gas  ow rate, etc.) used in the conversion. Our group has investigated the role of pre-cursor crystal structure on the ultimate performance of the CDC in a double layer capacitor.

The role of microstructure and composition in determining the performance of neuro-stimulation electrode coating materials has been investigated. The goal of this work is to optimize the charge transfer rate between the charge carriers in the coating and ionic charge in solution. The microstructure can be adjusted by adjusting the substrate, the substrate surface roughness and the coating deposition parameters.

Experiment Techniques:
Sputtering, optical lithography, XRD, RIE, SEM, AFM, FIB, EDS, WDXRF, specific heat, thermal transport, electrical transport, magnetization and magnetic susceptibility.

Member of:
Materials Research Society
American Physical Society
Society of Vacuum Coaters

Education/Academic qualification

Bachelor of Arts, Bachelor

Master of Arts, Master, Boston University

Doctor of Philosophy, doctorate, Boston University

Fingerprint Dive into the research topics where Jeffrey Hettinger is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

Magnetoresistance Chemical Compounds
transport properties Physics & Astronomy
Carbides Engineering & Materials Science
Hall effect Physics & Astronomy
thin films Physics & Astronomy
electrical resistivity Physics & Astronomy
Magnetic fields Chemical Compounds
critical current Physics & Astronomy

Network Recent external collaboration on country level. Dive into details by clicking on the dots.

Projects 2015 2021

Research Output 1989 2018

  • 1537 Citations
  • 20 h-Index
  • 55 Article
  • 3 Letter
  • 1 Conference contribution
  • 1 Conference article
4 Citations (Scopus)

Electrochemical oxidation of metal carbides in aqueous solutions

Messner, M., Walczyk, D. J., Benjamin, G. P., Norris, Z. A., Taylor, G., Carroll, J., Pham, T. X., Hettinger, J. & Yu, L., Jan 1 2018, In : Journal of the Electrochemical Society. 165, 4, p. H3107-H3114

Research output: Contribution to journalArticle

Electrochemical oxidation
Carbides
Metals
Carbon
Electrodes

Electrochemical oxidation of niobium and tantalum carbides in aqueous solutions

Walczyk, D. J., Mason, D. F., Palazzo, B. G., Norris, Z. A., McRae, N., Tran, A. T., Hettinger, J. & Yu, L., Jan 1 2017, Selected Proceedings from the 231st ECS Meeting New Orleans, LA - Spring 2017. 11 ed. Electrochemical Society Inc., Vol. 77. p. 1599-1606 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Tantalum carbide
Electrochemical oxidation
Niobium
Carbides
Metals

Evolution of magnetism in LnCuGa3 (Ln = La–Nd, Sm–Gd) studied via μSR and specific heat

Graf, M. J., Hettinger, J., Nemeth, K., Dally, R., Baines, C., Subbarao, U. & Peter, S. C., Dec 15 2017, In : Journal of Magnetism and Magnetic Materials. 444, p. 236-242 7 p.

Research output: Contribution to journalArticle

Magnetism
Specific heat
Magnetization
specific heat
Thermal variables measurement
3 Citations (Scopus)

Silver oxide coatings with high silver-ion elution rates and characterization of bactericidal activity

Goderecci, S. S., Kaiser, E., Yanakas, M., Norris, Z., Scaturro, J., Oszust, R., Medina, C. D., Waechter, F., Heon, M., Krchnavek, R., Yu, L., Lofland, S., Demarest, R. M., Caputo, G. & Hettinger, J., Sep 1 2017, In : Molecules. 22, 9, 1487.

Research output: Contribution to journalArticle

silver oxides
elution
Silver
Staphylococcus aureus
silver
7 Citations (Scopus)

Carbide-derived Carbon by electrochemical etching of vanadium carbides

Camargo, L. G. B., Palazzo, B. G., Taylor, G., Norris, Z. A., Patel, Y. K., Hettinger, J. D. & Yu, L., Jan 1 2015, In : Journal of the Electrochemical Society. 162, 10, p. H811-H815

Research output: Contribution to journalArticle

vanadium carbides
Electrochemical etching
Vanadium
carbides
Carbides