(updated Spring 2020)
Education
University of Maryland, College Park, Maryland
Doctor of Philosophy in Materials Science and Engineering                                                 2013
Thesis: Tribology of Microball Bearings for MEMS
Master of Science in Materials Science and Engineering                                                      2009
Clemson University, Clemson, South Carolina                                                                                           
Bachelor of Science in Ceramic and Materials Engineering                                                  2006
                                                                                                                                                                    
Professional Experience
Army Research Laboratory: Staff Materials Engineer                                                            2015-
                                             Postdoctoral Associate                                                             2013-2015
                                             Student Researcher                                                                  2009-2013
University of Maryland, Graduate Research Assistant                                                          2006-2009
FEI Company, Visiting Researcher                                                                                        2007
 
Awards
  • ARL Scientist of the Quarter, Q1 FY20                                                                                2019
  • ARL Entrepreneurial Leadership, 1st cohort                                                                        2019
  • U.S. Army Research Laboratory Community Service Award                                               2016
  • Best Student Poster Award (Mid-Atlantic Micro/Nano Symposium)                                     2012
  • U.S. Army Research Lab Student Summer 2012 Symposium Silver Medal                        2012
  • “MacGyver” award, Campus-wide engineering competition                                                 2006
  • Keramos Ceramic Engineering Honor Fraternity, Vice President                                         2005
  • Boy Scouts of America, Eagle Scout                                                                                    2002
 
Full-Length, Peer reviewed Publications (available on request)
  1. M. Rivas, R. Rudy, B. Sanchez, M. Graziano, G. Fox, P. Sunal, L. Nataraj, E. Sandoz-Rosado, A. Leff, B. Huey, R. Polcawich, and B. Hanrahan, “Iridium oxide top electrodes for piezo- and pyroelectric performance enhancements in lead zirconate titanate thin-film devices. J Mater Sci (2020)
  2. B. Hanrahan, J. Easa, A. Payne, Y. Espinal, S. P. Alpay, H. Kareem, C. O’Brien, and A. Smith, “A portable power concept based on combustion and pyroelectric energy conversion”, in press Cell Reports Physical Science, 2020
  3. S. Lane, K. Barrett-Snyder, N. Lazarus, W. Alberts, B. Hanrahan, “Vibration Sensing the Mammalian way: An Artificial Pacinian Corpuscle”, in press Bioinspired and Biomimetic, 2020
  4. I Kierzewski, SS Bedair, B Hanrahan, H Tsang, L Hu, N Lazarus, “Adding an electroactive response to 3D printed materials: Printing a piezoelectret”, Additive Manufacturing 31, 100963 2020
  5. J. Liu, S. Liu, L.-H. Liu, B. Hanrahan, “Origin of pyroelectricity in ferroelectric HfO2”, Physical Review Applied, 12, 3 2019
  6. S Pandya, G Velarde, L Zhang, J D Wilbur, A Smith, B Hanrahan, C Dames, L. Martin, “New approach to waste-heat energy harvesting: pyroelectric energy conversion”, Nature Asia Materials, 11 (1) 26 2019
  7. B. Hanrahan, C Mart, T Kämpfe, M Czernohorsky, W Weinreich, A Smith, “Pyroelectric Energy Conversion in Doped Hafnium Oxide (HfO2) Thin Films on Area‐Enhanced Substrates”, Energy Technology, 7 (8), 2019
  8. S Liu, B. Hanrahan, “Effects of growth orientations and epitaxial strains on phase stability of thin films”, Physical Review Materials 3 (5), 054404 2019
  9. D.Sharar, B. Donovan, R. Warzoha, A. Wilson, A. Leff, and B. Hanrahan, “Solid-state thermal energy storage using reversible martensitic transformations”, Applied Physics Letters 2019 114:14
  10. Z. Zhang,  B. Hanrahan, C. Shi, A. Khaligh, “Management and Storage of Energy Converted Via a Pyroelectric Heat Engine”, Applied Energy, 230, 1326-1331, 2018
  11. B. Hanrahan, Y. Espinal, S. Liu, Z. Zhang, A. Khaligh, A. Smith, P. Alpay, “Combining Inverse and Conventional Pyroelectricity in Antiferroelectric Thin Films for Energy Conversion”, Journal of Materials Chemistry: C, 2018
  12. D. Baker, M. Graziano, B. Hanrahan, “A Nanostructured Anti-Reflective Iridium Oxide Coating for Water Oxidation”, Journal of Physical Chemistry: C, 122 (23), 2018
  13. Y. Espinal, B. Hanrahan, P. Alpay, “Dielectric Properties and Resistive Switching Characteristics of Lead Zirconate Titanate / Hafnia Heterostructures”, Journal of Applied Physics, 2018
  14. B. Hanrahan, Y. Espinal, C. Neville, R. Rudy, M. Rivas, A. Smith, MT. Kesim, P. Alpay, “Accounting for the various contributions to pyroelectricity in lead zirconate titanate thin films”, Journal of Applied Physics 123 (12), 2018
  15. B. Hanrahan, F. Sze, A. Smith, and N. Jankowski, “Thermodynamic Cycle Optimization for Pyroelectric Energy Conversion in the Thin Film Regime”, International Journal of Energy Research 41 (13), 1880-1890, 2017
  16. B. Hanrahan, C. Neville, A. Smith, N. Ter-Gabrielyan, N. Jankowski, and C. Waits, “Wireless Power Transmission via Modulated Laser Irradiation of Pyroelectric Thin Films”, Advanced Materials Technologies, Vo 25, 1, 2016
  17. N. Jankowski, A. Smith, B. Hanrahan, "Thermal Modeling of Pyroelectric Energy Conversion from Pulsed Heat Sources", Proceedings of the Summer Heat Transfer Conference, Washington, D.C., July 10-14, 2016
  18. N. Lazarus, B. Hanrahan, “Thermotherapy platform based on a highly stretchable wireless heater”, Advanced Materials Technologies 1 (8), 2016
  19. B. Hanrahan, L. Sanchez, C. Waits, and R. Polcawich, “Improved Pyroelectric Performance for Thin Film Lead Zirconate Titanate (PZT) Capacitors with IrO2 Electrodes”, Smart Materials and Structures, vol. 25, 015025, December 2015
  20. IM Kierzewski, L Boteler, SS Bedair, CD Meyer, BM Hanrahan, N Lazarus, “Electroplated Copper for Heterogeneous Die Integration” IEEE Transactions on Components, Packaging and Manufacturing Technology, 5, (7) 2015
  21. J. Feldman, B. Hanrahan, S. Misra, X. Fan, C. Waits, P. Mitcheson, R. Ghodssi,” Vibration-based diagnostics for rotary MEMS” Journal of Microelectromechanical Systems 24 (2), 2015
  22. B. Hanrahan, S. Misra, C. Waits, R. Ghodssi, “Wear mechanisms in microfabricated ball bearing systems” Wear 326 2015
  23. B. Hanrahan, S. Misra, M. Beyaz, J. Feldman, C. Waits, R. Ghodssi, “An adhesion-dominated rolling friction regime unique to micro-scale ball bearings” Tribology Letters 56 (2), 2014
  24. B. Hanrahan, C. Waits, and R. Ghodssi, “Isotropic etching technique for three-dimensional microball-bearing raceways”, Journal of Micromechanics and Microengineering 24 (1) 2013
  25. R. Hergert, B. Hanrahan, A. Holmes, and R. Ghodssi., "Silicon Retainer Ring Integration in Micro-turbine with Thrust Ball Bearing Support Mechanism," Journal of Micromechanics and Microengineering,  v. 23, n. 6, 2013.
  26. M. Beyaz, B. Hanrahan, J. Feldman, and R. Ghodssi, “An Integrated Permanent Magnet Micro-Turbo-Generator Supported on Microball Bearing", Journal of Micro-ElectroMechanical Systems, v. 22, no. 3, pp. 794-803, 2013.
  27. M. Beyaz, B. Hanrahan, J. Feldman, and R. Ghodssi, “Integrated Real Time Sensing of Actuation Conditions in a Micro-Turbo-Generator,” Journal of Micro-ElectroMechanical Systems, 2013
  28. Matthew H. Ervin, Benjamin S. Miller, Brendan Hanrahan, and Benjamin Mailly, “A comparison of single-wall carbon nanotube electrochemical capacitor electrode fabrication methods” Electrochemica Acta, volume 65, pp. 37-43, 2012
  29. C. M. Waits, B. Hanrahan, and I. Lee, “Multiplexed Electrospray Scaling for Liquid Fuel Injection” Journal of MicroElectroMechanical Systems, 20, no. 10, Sept. 2010.
 
Conference Publications and Technical reports
  1. Y.Espinal, C. Nevile, F. Sze, A. N. Smith, N. Ter-Gabrielyn, N.Jankowski, C. M. Waits, B.Hanrahan, “Pyroelectric Energy Conversion for Army Applications”, Innovations in Army Energy and Power Materials Technologies 36, 358 (2018)
  2. D. Sharar, J. Radice, R. Warzoha, B. Hanrahan, B. Chang, “First Demonstration of a Bending-Mode Elastocaloric Cooling ‘Loop’” , 2018 17th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, May 2018
  3. AN Smith, BM Hanrahan, CJ Neville, NR Jankowski, “Timing a Pulsed Thin Film Pyroelectric Generator for Maximum Power Density”, Journal of Physics: Conference Series, volume 773, 1, 012102 (2016)
  4. B. Hanrahan, “Crystal Heat: An atomic engine that has all of the power but none of the moving parts”, Army AL&T magazine, Dec 2016
  5. F. Sze, B. Hanrahan, “Pyroelectric Energy Harvesting: Model and Experiments”, Technical Report for the U.S. Army Research Laboratory, ARL-TR-7663, May 2016.
  6. B. Hanrahan, S. Misra, J. Feldman, C. Waits, and R. Ghodssi, "Isotropically-etched, Deep-groove Microball Bearing Systems", Proceedings of the 12th International Workshop on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS 2012), Atlanta, Georgia, December 2-5, 2012.
  7. S. Misra, B. Hanrahan, J. Feldman, and R. Ghodssi, "Vapor Phase Lubrication for High Performance Rotary MEMS Applications", Proceedings of the 12th International Workshop on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS 2012), Atlanta, Georgia, December 2-5, 2012.
  8. Hanrahan B. and Waits M. , “Fabrication and Testing of Tapered Electro-spray Nozzles” Technical Report for the U.S. Army Research Laboratory, September 2012.
  9. Hanrahan B, Feldman J, Misra S, Waits M, Mitcheson P, Ghodssi R,  “Off-The-Shelf MEMS for Rotary MEMS,”,Proceedings of  IEEE Conference on MEMS 2012, Paris, France, Jan 29- Feb. 3, pp. 579-582
  10. M.I. Beyaz, B. Hanrahan, J. Feldman,and R. Ghodssi, “An Integrated Electromagnetic Micro-Turbo-Generator Supported On Encapsulated Microball Bearings,” Proceedings of  IEEE Conference on MEMS 2012, Paris, France, Jan 29- Feb. 3, pp. 1209-1212
  11. M. Beyaz, B. Hanrahan, J. Feldman, and R. Ghodssi, “Integrated sensing of mechanical parameters in a micro-turbo-generator” IEEE Sensors, Taipei, Taiwan, January 2013
  12. R. Hergert, B. Hanrahan, A. Holmes, and R. Ghodssi., "Silicon Retainer Ring Integration in Micro-turbine with Thrust Ball Bearing Support Mechanism," in Proceedings of Transducers 2011, Beijing, China, June 5-9, 2011 pp. 1344 - 1347
  13. R. Ghodssi, B. Hanrahan, and M. Beyaz, “Microball Bearing Technology for MEMS Devices and Integrated Microsystems” in Proceedings of Transducers 2011, Beijing, China, June 5-9, 2011, pp. 1789-1794  *invited
  14. Matthew H. Ervin, Benjamin S. Miller, and Brendan Hanrahan, “CNT Supercapacitor Electrode Fabrication Methods” Technical Report for the U.S. Army Research Laboratory, January 2011.
  15. B. Hanrahan, M. Beyaz, M.McCarthy, C.M. Waits, and R. Ghodssi, "A New Performance Regime For Microfabricated Ball Bearings," Proceedings of the 10th International Workshop on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS 2010), Leuven, Belgium, November 30 - December 3, 2010, pp. 191-194
  16. M. Beyaz, B. Hanrahan, and R. Ghodssi, "A Microfabricated Rotor Supported On Microball Bearings With Integrated Permanent Magnets", Proceedings of the 10th International Workshop on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS 2010), Leuven, Belgium, November 30 - December 3, 2010, pp. 167-171
  17. Wayne A. Churaman, Collin R. Becker, Grace D. Metcalfe, Brendan M. Hanrahan, Luke J. Currano, and Conrad R. Stoldt, “Optical Initiation of Nanoporous Energetic Silicon for Safing and Arming Technologies”, Proceedings of SPIE, Optical Technologies for Arming, Safing, Fuzing, and Firing VI, Vol. 7795, Sept. 2, 2010.
  18. B. Hanrahan, M.McCarthy, J. Balsam, C.M. Waits, H. Bruck, and R. Ghodssi, “An Investigation of Hard Film Coatings for High-Speed Rotary PowerMEMS supported in Microball Bearings”, proceedings of the 9th International Workshop on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS ’09), Washington DC, USA, December 1-4, 2009, pp. 589-592
  19. M. McCarthy, B. Hanrahan, C. Zorman, and R. Ghodssi, "Rolling Friction in MEMS Ball Bearings: The Effects of Loading and Solid Film Lubrication," STLE/ASME International Joint Tribology Conference, San Diego, CA, October 22 - 24, 2007.
 
Presentations and Posters
  1. B. Hanrahan, A. Smith, H. Kareem, L. Mahoney, I. Lee, “A Combustion-Based Pyroelectric Heat Engine”, International Symposium on the Applications of Ferroelectrics, Lausanne, Switzerland, July 14-19 2019
  2. A. Smith, B. Hanrahan, “Cascade Pyroelectric Energy Conversion Near the Phase Transition”, International Symposium on the Applications of Ferroelectrics, Lausanne, Switzerland, July 14-19 2019
  3. N. Strnad, D. Potrepka, B. Hanrahan, A. Leff, R. Phaneuf, R. Polcawich, J. Pulskamp, “Atomic Layer Deposition of Ferroelectric PbTiO3, PbZrxTi1-xO3, and PbHfxTi1-xO3” , International Symposium on the Applications of Ferroelectrics, Lausanne, Switzerland, July 14-19 2019 (invited)
  4. J. Puder, B. Hanrahan, R. Benoit, R. Rudy, D. Potrepka, J. Pulskamp, “Piezoelectric Coefficients Extraction from Polarization-Electric Field Curves at High Electric Bias Fields”, International Symposium on the Applications of Ferroelectrics, Lausanne, Switzerland, July 14-19 2019
  5. B. Benoit, D. Potrepka, B. Hanrahan, N. Strnad, S. Isaacson, R. Polcawich, “Lead Zirconate Titanate Thin Films on Silicon-On-Sapphire Substrates” ”, International Symposium on the Applications of Ferroelectrics, Lausanne, Switzerland, July 14-19 2019
  6. S. Liu, B. Hanrahan, “Effects of Substrate Orientations on Phase Stability of Epitaxial HfO2 Thin Films” APS March Meeting, 2019
  7. B. Hanrahan, “Pyroelectrics for Wireless Power Applications”  2nd Annual Energy Harvesting Society Meeting, Philadelphia, PA Sept. 5-7, 2018 (invited)
  8. B. Hanrahan, Y. Espinal, C. Neville, A. Smith and P. Alpay, “Tuning the Electric Field for Maximum Pyroelectric Energy: Antiferroelectric Case Study” International Symposium on Applied Ferroelectrics (ISAF),  Hiroshima, Japan May 28-31, 2018
  9. B. Hanrahan, Y. Espinal, C. Neville, A. Smith and P. Alpay, “Understanding the True Electrothermal Response of Ferroelectric Thin Films” International Meeting on Ferroelectrics, San Antonio, Texas, September 4-8, 2017
  10. Y. Espinal, B. Hanrahan, P. Alpay, “Inorganic Ferroelectric/Dielectric Nanocomposite Thin Films” International Meeting on Ferroelectrics, San Antonio, Texas, September 4-8, 2017
  11. Brendan Hanrahan, Yomery Espinal, Andrew Smith, Hamidreza Kassaf, Ronald Polcawich, and S. Pamir Alpay, “Linking Pyroelectric Energy Conversion Theory to Practice”, International Symposium on Applied Ferroelectrics (ISAF),  Atlanta, Ga, May 7-10, 2017 (Invited)
  12. Y. Espinal, P. Alpay, R. Polcawich, and B. Hanrahan, “Design of Multilayer Ferroelectrics for Pyroelectric Energy Conversion,” Electronic Materials and Applications 2017 conference (EMA 2017), Orlando, Florida, January 18 - 20, 2017
  13. D. Sharar, Joshua Radice, Ron Warzoha, A. Smith, N. Laz, B. Hanrahan, N. Jankowski, “Bending Mode Elastocaloric Cooling” MRS, Phoenix, AZ, April 17-21, 2017
  14. Brendan Hanrahan, Andrew Smith, Hamidreza Kassif, S. Pamir Alpay, “Multi-regime non-linear pyroelectric energy harvesting in thin films”, Materials Research Society Spring Meeting, Pheonix, AZ, April 17-21, 2017
  15. Manuel Rivas, G. Song, E. Sandoz-Rosado, R.Q. Rudy, B. Hanrahan, S.W. Lee, B. Huey, and R.G. Polcawich, “Determination of Elastic Modulus of IrO 2 Thin Films for PiezoMEMS Applications” IEEE International Symposium on Applications of Ferroelectrics Atlanta, GA May 9, 2017
  16. Fabrication Induced Damage on the Ferroelectric and Piezoelectric PZT Thin Films for Clamped and Unclamped Final Devices”, Symposium on Advanced Electronic Materials: Processing, Structures, Properties and Applications, Electronic Materials and Applications, Orlando, FL January 20, 2017
  17. I. Kierzewski, C. Jia, B. Hanrahan, S. Bedair, J. Ho, L. Hu, and N. Lazarus,  “Ferroelectret Behavior in De-Lignified Wood,” International Conference on Electrets, Leuven, Belgium Sept. 4-7, 2017
  18. B. Hanrahan, C. Neville, A. Smith, N. Ter-Gabrielyan, N. Jankowski, “Wireless Power Transfer via Pyroelectrics”, International Symposium on Applied Ferroelectrics (ISAF),  Darmstadt, Germany, August 21-25, 2016
  19. B. Hanrahan, A. Smith, N. Jankowski, and R. Polcawich “Radiatively-Actuated Pyroelectric Conversion Cycles”, Taking the Temperatures of Phase Transitions Meeting at the Royal Society,  London, UK, Feb. 8-9, 2016
  20. B. Hanrahan, A. Smith, N. Jankowski, L. Sanchez, and R. Polcawich, “Thermodynamic Optimization of High Frequency Pyroelectric Energy Conversion”, Materials Research Society Fall Meeting, Boston, MA, November 29-December 4, 2015
  21. B. Hanrahan, L. Sanchez, N. Jankowski, N. Ter-Gabrielyan, C. M. Waits, and R.G. Polcawich, “A New Performance Regime for Pyroelectric Conversion Materials”, International Symposium on Applied Ferroelectrics (ISAF),  Singapore, May 23-27, 2015
  22. B. Hanrahan, L. Sanchez, R. Polcawich, C. Waits, “Pyroelectric Energy Conversion: Leakage Current and Curie Temperature”, 15th International Symposium for Electrets,  Baltimore, Maryland, August 13-15, 2014
  23. B. Hanrahan, L. Sanchez, R. Polcawich, C. Waits, “Electrothermal Properties of Sol-Gel PZT Prepared with Varying Lead-Excess”, International Symposium on Applied Ferroelectrics (ISAF),  State College, Pennsylvania, May 12-16, 2014
  24. S. Misra, B. Hanrahan, and R. Ghodssi, "Isolating the Adhesive Component of Micro-Scale Rolling Friction via Vapor-Phase Lubrication," American Vacuum Society 59th International Symposium, Tampa, FL, October 28 - November 2, 2012.
  25. Hanrahan B, Feldman J, Misra S, Waits M, Mitcheson P, Ghodssi R, “Tribology of Microball Bearings for MEMS”, 2012 Solid State Sensor, Actuator, and Microsystems Workshop, Hilton Head, SC, June 3-7, 2012.
  26. M. Beyaz, B. Hanrahan, and R. Ghodssi, “Microball Bearings for Microsystems Integration”, 2010 Solid State Sensor, Actuator, and Microsystems Workshop, Hilton Head, SC, June 6-10, 2010.
  27. B. Hanrahan, M. McCarthy, C. Zorman, and R. Ghodssi, "Wear in MEMS-Based Microball Bearings," American Vacuum Society 54th International Symposium, Seattle, WA, October 14 - 19, 2007.
 
Patents
  • Electronic device structure and method of making electronic devices and integrated circuits using grayscale technology and multilayer thin-film composites
GI Smith, B Hanrahan, CM Waits, RG Polcawich, L Sanchez, SS Bedair. US Patent 9,096,426
  • Continuous Bending-Mode Elastocaloric Cooling/Heating Flow Loop.
D Sharar, B Hanrahan, A Leff, A Smith. U.S. Patent 20200088449A1
  • System and Method for Self-Synchronized Pyroelectric Energy Conversion. App #:62/900,188
Z. Zhang, C. Shi, A. Khaligh, A. Smith, B. Hanrahan

Professional Affiliations
  • MRS – Materials Research Society
  • IEEE – Institute for Electrical and Electronics Engineers
Management Experience/Philanthropy
Cupid Charities, Board Chairman                                                                                           2010-Pres
      501(c)3 Corporation established to provide fundraising for the Children’s Tumor Foundation.
  • Conceived and produced a world-wide fundraising and awareness event, started in 2010.
  • Lead a team of 50+ volunteers.
  • Marketing, sponsorship, accounting, and logistics experience; interface with local and national governmental agencies.
  • Raised more than $16,000,000 fundraising, 20,000+ participants
Mid-Atlantic Micro/Nano Alliance, President,                                                                       2016-2019
501(c)3 Corporation established to foster interactions and collaborations between industry, academia, and government labs in the Mid-Atlantic region
  • Produced annual technical symposiums in the region
Fundraised to support mission programs      
E-mail for more info