Photo of Brian Foley

Brian Foley

Assistant Professor


  • Mechanical Engineering

326 Reber Building


Research Areas:




  • BE, Electrical Engineering, Worcester Polytechnic Institute, 2007
  • MS, Electrical & Computer Engineering, Worcester Polytechnic Institute, 2008
  • Ph D, Mechanical Engineering, University of Virginia, 2016


Journal Articles

  • Zhe Cheng, Brian M. Foley, Thomas Bougher, Luke Yates, Baratunde A Cola and Samuel Graham, 2018, "Thermal Rectification in Thin Films Driven by Gradient Grain Microstructure", Journal of Applied Physics, 123, (9), pp. 095114
  • Brian M. Foley, Margeaux Wallace, John T Gaskins, Elizabeth A Paisley, Raegan L Johnson-Wilke, Jong-Woo Kim, Philip J Ryan, Susan E Trolier-McKinstry, Patrick E Hopkins and Jon F Ihlefeld, 2018, "Voltage-Controlled Bistable Thermal Conductivity in Suspended Ferroelectric Thin-Film Membranes", ACS Applied Materials & Interfaces, 10, (30), pp. 25493--25501
  • Brian Foley, Elizabeth A Paisley, Christopher DiAntonio, Tom Chavez, Mia Blea-Kirby, Geoff Brennecka, John T Gaskins, Jon F Ihlefeld and Patrick E Hopkins, 2017, "Phonon scattering mechanisms dictating the thermal conductivity of lead zirconate titanate (PbZr1- x Ti x O3) thin films across the compositional phase diagram", Journal of Applied Physics, 121, (20), pp. 205104
  • SG Walton, BM Foley, Hern\'andez, SC, DR Boris, M Baraket, JC Duda, JT Robinson and PE Hopkins, 2017, "Plasma-based chemical functionalization of graphene to control the thermal transport at graphene-metal interfaces", Surface and Coatings Technology, 314, pp. 148--154
  • Brian Foley, Harlan J Brown-Shaklee, Michael J Campion, Douglas L Medlin, Paul G Clem, Jon F Ihlefeld and Patrick E Hopkins, 2015, "Glass-Like Thermal Conductivity of (010)-Textured Lanthanum-Doped Strontium Niobate Synthesized with Wet Chemical Deposition", Journal of the American Ceramic Society, 98, (2), pp. 624--628
  • Brian Foley, Herna┬┤ndez, Sandra C, John C Duda, Jeremy T Robinson, Scott G Walton and Patrick E Hopkins, 2015, "Modifying surface energy of graphene via plasma-based chemical functionalization to tune thermal and electrical transport at metal interfaces", Nano letters, 15, (8), pp. 4876--4882
  • Jon F Ihlefeld, Brian Foley, David A Scrymgeour, Joseph R Michael, Bonnie B McKenzie, Douglas L Medlin, Margeaux Wallace, Susan E Trolier-McKinstry and Patrick E Hopkins, 2015, "Room-temperature voltage tunable phonon thermal conductivity via reconfigurable interfaces in ferroelectric thin films", Nano letters, 15, (3), pp. 1791--1795
  • Kristopher J Erickson, L\'eonard, Fran\ccois, Vitalie Stavila, Michael E Foster, Catalin D Spataru, Reese E Jones, Brian Foley, Patrick E Hopkins, Mark D Allendorf, Talin and A Alec, 2015, "Thin film thermoelectric metal--organic framework with high Seebeck coefficient and low thermal conductivity", Advanced Materials, 27, (22), pp. 3453--3459
  • Jayakanth Ravichandran, Ajay K Yadav, Ramez Cheaito, Pim B Rossen, Arsen Soukiassian, SJ Suresha, John C Duda, Brian Foley, Che-Hui Lee, Ye Zhu and others, 2014, "Crossover from incoherent to coherent phonon scattering in epitaxial oxide superlattices", Nature materials, 13, (2), pp. 168
  • Ashutosh Giri, Brian Foley and Patrick E Hopkins, 2014, "Influence of Hot Electron Scattering and Electron--Phonon Interactions on Thermal Boundary Conductance at Metal/Nonmetal Interfaces", Journal of Heat Transfer, 136, (9), pp. 092401
  • Brian Foley, Caroline S Gorham, John C Duda, Ramez Cheaito, Chester J Szwejkowski, Costel Constantin, Bryan Kaehr and Patrick E Hopkins, 2014, "Protein thermal conductivity measured in the solid state reveals anharmonic interactions of vibrations in a fractal structure", The journal of physical chemistry letters, 5, (7), pp. 1077--1082
  • Brian F Donovan, Brian Foley, Jon F Ihlefeld, Jon-Paul Maria and Patrick E Hopkins, 2014, "Spectral phonon scattering effects on the thermal conductivity of nano-grained barium titanate", Applied Physics Letters, 105, (8), pp. 082907
  • Qiugui Zhou, Allen S Cross, Yang Fu, Andreas Beling, Brian Foley, Patrick E Hopkins and Joe C Campbell, 2013, "Balanced InP/InGaAs photodiodes with 1.5-W output power", IEEE Photonics Journal, 5, (3), pp. 6800307--6800307
  • Stanley S Chou, Bryan Kaehr, Jaemyung Kim, Brian Foley, Mrinmoy De, Patrick E Hopkins, Jiaxing Huang, C Jeffrey Brinker and Vinayak P Dravid, 2013, "Chemically exfoliated MoS2 as near-infrared photothermal agents", Angewandte Chemie, 125, (15), pp. 4254--4258
  • JC Duda, C-YP Yang, BM Foley, R Cheaito, DL Medlin, RE Jones and PE Hopkins, 2013, "Influence of interfacial properties on thermal transport at gold: silicon contacts", Applied Physics Letters, 102, (8), pp. 081902
  • Brian Foley, Harlan J Brown-Shaklee, John C Duda, Ramez Cheaito, Brady J Gibbons, Doug Medlin, Jon F Ihlefeld and Patrick E Hopkins, 2012, "Thermal conductivity of nano-grained SrTiO 3 thin films", Applied Physics Letters, 101, (23), pp. 231908

Conference Proceedings

Research Projects

Honors and Awards


Service to Penn State:

Service to External Organizations:




With more than 60 faculty members, 330 graduate students, and 800 undergraduate students, the Penn State Department of Mechanical Engineering embraces a culture that welcomes individuals with a diversity of backgrounds and expertise. Our faculty and students are innovating today what will impact tomorrow’s solutions to meeting our energy needs, homeland security, biomedical devices, and transportation systems. We offer B.S. degrees in mechanical engineering as well as resident (M.S., Ph.D.) and online (M.S.) graduate degrees in mechanical engineering. See how we’re inspiring change and impacting tomorrow at

Department of Mechanical Engineering

137 Reber Building

The Pennsylvania State University

University Park, PA 16802-4400

Phone: 814-865-2519