Fei Ren is an Assistant Professor in the Department of Mechanical Engineering at Temple University. He received his Ph.D in Materials Science and Engineering from Michigan State University in 2007. Prior to joining Temple University, he was a postdoctoral and then a staff scientist in the Materials Science and Technology Division at Oak Ridge National Laboratory. He has authored nearly 50 articles in peer reviewed journals and more than 80 presentations at technical conferences.

Research Interests

  • Materials Processing
  • Mechanical Testing, Energy Materials
  • Composite Materials
  • Microstructural Analysis
  • Failure Analysis

Courses Taught




ENGR 3201

Material Science for Engineers


ENGT 3201

Applied Materials Technology


MEE 4577

Power Generation and Storage Technologies


MEE 5203

Advanced Materials Science


MEE 5577

Power Generation and Storage Technologies


MEE 8110

Special Topics


Selected Publications

  • Zhang, Z., Zhao, Y., Li, H., Percec, S., Yin, J., & Ren, F. (2019). Nanoparticle-Infused UHMWPE Layer as Multifunctional Coating for High-Performance PPTA Single Fibers. Scientific Reports, 9(1). doi: 10.1038/s41598-019-43629-1

  • Chabi, S., Dikin, D.A., Yin, J., Percec, S., & Ren, F. (2019). Author Correction: Structure-Mechanical Property Relations of Skin-Core Regions of Poly(p-phenylene terephthalamide) Single Fiber (Scientific Reports, (2019), 9, 1, (740), 10.1038/s41598-018-37366-0). Scientific Reports, 9(1). doi: 10.1038/s41598-019-43509-8

  • Chabi, S., Dikin, D.A., Yin, J., Percec, S., & Ren, F. (2019). Structure-Mechanical Property Relations of Skin-Core Regions of Poly(p-phenylene terephthalamide) Single Fiber. Scientific Reports, 9(1). doi: 10.1038/s41598-018-37366-0

  • Li, H., Marshall, T., Aulin, Y.V., Thenuwara, A.C., Zhao, Y., Borguet, E., Strongin, D.R., & Ren, F. (2019). Structural evolution and electrical properties of metal ion-containing polydopamine. Journal of Materials Science, 54(8), pp. 6393-6400. doi: 10.1007/s10853-019-03337-7

  • Zhao, Y., Wu, Z., Carlo, F.D.i., Li, H., Qian, B., Feng, Z., & Ren, F. (2019). Enhancing the electrical and mechanical properties of copper by introducing nanocarbon derived from polydopamine coating. Journal of Alloys and Compounds, pp. 288-293. doi: 10.1016/j.jallcom.2018.11.145

  • Qian, B., Zhao, Y., & Ren, F. (2019). Effect of material anisotropy on the transverse thermoelectricity of layered composites. International Journal of Energy Research, 43(1), pp. 181-188. doi: 10.1002/er.4248

  • Guan, Y.S., Li, H., Ren, F., & Ren, S. (2018). Kirigami-inspired conducting polymer thermoelectrics from electrostatic recognition driven assembly. ACS Nano, 12(8), pp. 7967-7973. doi: 10.1021/acsnano.8b02489

  • Jia, Z., Li, H., Zhao, Y., Dikin, D.A., Ni, J., Zhao, L., Zhen, J., Ge, B., Shao, X., & Ren, F. (2018). Preparation and electrical properties of sintered copper powder compacts modified by polydopamine-derived carbon nanofilms. Journal of Materials Science, 53(9), pp. 6562-6573. doi: 10.1007/s10853-018-2000-6

  • Zhao, Y., Wang, H., Qian, B., Li, H., & Ren, F. (2018). Copper-polydopamine composite derived from bioinspired polymer coating. Journal of Alloys and Compounds, 742, pp. 191-198. doi: 10.1016/j.jallcom.2018.01.183

  • Jia, Z., Li, H., Zhao, Y., Frazer, L., Qian, B., Borguet, E., Ren, F., & Dikin, D.A. (2017). Electrical and mechanical properties of poly(dopamine)-modified copper/reduced graphene oxide composites. Journal of Materials Science, 52(19), pp. 11620-11629. doi: 10.1007/s10853-017-1307-z

  • Qian, B. & Ren, F. (2017). Transverse thermoelectricity in fibrous composite materials. Energies, 10(7). doi: 10.3390/en10071006

  • Ren, F., Schmidt, R., Case, E.D., & An, K. (2017). In Situ Neutron Scattering Study of Nanostructured PbTe-PbS Bulk Thermoelectric Material. Journal of Electronic Materials, 46(5), pp. 2604-2610. doi: 10.1007/s11664-016-4802-0

  • Li, H., Aulin, Y.V., Frazer, L., Borguet, E., Kakodkar, R., Feser, J., Chen, Y., An, K., Dikin, D.A., & Ren, F. (2017). Structure Evolution and Thermoelectric Properties of Carbonized Polydopamine Thin Films. ACS Applied Materials and Interfaces, 9(8), pp. 6655-6660. doi: 10.1021/acsami.6b15601

  • Wang, H., Wang, J., Swindeman, J.P., Ren, F., & Chan, J. (2017). Structural health monitoring of compression connectors for overhead transmission lines. Proceedings of SPIE - the International Society for Optical Engineering, 10169. doi: 10.1117/12.2261483

  • Ren, F., Schmidt, R., Keum, J.K., Qian, B., Case, E.D., Littrell, K.C., & An, K. (2016). In situ neutron scattering study of nanoscale phase evolution in PbTe-PbS thermoelectric material. Applied Physics Letters, 109(8). doi: 10.1063/1.4961677

  • Ren, F. (2016). Thermal and mechanical integrity of PbTe-based nanostructured thermoelectric materials. ABSTRACTS of PAPERS of the AMERICAN CHEMICAL SOCIETY, 252. Retrieved from

  • Xu, B., Li, H., Li, H., Wilson, A.J., Zhang, L., Chen, K., Willets, K.A., Ren, F., Grossman, J.C., & Ren, S. (2016). Chemically Driven Interfacial Coupling in Charge-Transfer Mediated Functional Superstructures. Nano Letters, 16(4), pp. 2851-2859. doi: 10.1021/acs.nanolett.6b00712

  • Qian, B. & Ren, F. (2016). Cooling performance of transverse thermoelectric devices. International Journal of Heat and Mass Transfer, 95, pp. 787-794. doi: 10.1016/j.ijheatmasstransfer.2015.12.027

  • Ren, F., Menchhofer, P., Kiggans, J., & Wang, H. (2016). Development of Thermoelectric Fibers for Miniature Thermoelectric Devices. Journal of Electronic Materials, 45(3), pp. 1412-1418. doi: 10.1007/s11664-015-4050-8

  • Sahlabadi, M., Zhao, Y., Jezler, K., Gardell, D., Lee, H.H., Ren, F., & Hutapea, P. (2016). Polydopamine coating for thermal insulation of shape memory alloy wires. ASME 2016 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2016, 1. doi: 10.1115/SMASIS2016-9265

  • Wang, H., Wang, J., Ren, F., & Chan, J. (2016). Smart patch integration development of compression connector structural health monitoring in overhead transmission lines. Proceedings of SPIE - the International Society for Optical Engineering, 9806. doi: 10.1117/12.2218669

  • Wang, Y., Feng, Z., Ren, F., Lim, Y.C., Chen, J., & Jawad, M. (2016). Steel-concrete composite vessel for stationary high-pressure hydrogen storage. American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP, 1A-2016. doi: 10.1115/PVP2016-63371

  • Bi, S., Sun, C.N., Zawodzinski, T.A., Ren, F., Keum, J.K., Ahn, S.K., Li, D., & Chen, J. (2015). Reciprocated suppression of polymer crystallization toward improved solid polymer electrolytes: Higher ion conductivity and tunable mechanical properties. Journal of Polymer Science, Part B: Polymer Physics, 53(20), pp. 1450-1457. doi: 10.1002/polb.23793

  • Sun, C.N., Zawodzinski, T.A., Tenhaeff, W.E., Ren, F., Keum, J.K., Bi, S., Li, D., Ahn, S.K., Hong, K., Rondinone, A.J., Carrillo, J., Do, C., Sumpter, B.G., & Chen, J. (2015). Nanostructure enhanced ionic transport in fullerene reinforced solid polymer electrolytes. Physical Chemistry Chemical Physics, 17(12), pp. 8266-8275. doi: 10.1039/c4cp05583g

  • Wang, J., Ren, F., Tan, T., & Liu, K. (2015). The development of in situ fracture toughness evaluation techniques in hydrogen environment. International Journal of Hydrogen Energy, 40(4), pp. 2013-2024. doi: 10.1016/j.ijhydene.2014.11.147

  • Li, H., Mirizio, E., Rajasimhan, S., Qian, B., Baranowitz, S., Kiani, M.F., & Ren, F. (2014). Evaluation of temperature dependent electrical properties for hydrated natural melanins. MOLECULAR BIOLOGY of the CELL, 25. Retrieved from

  • Mirizio, E., Rajasimhan, S., Li, H., Qian, B., Kiani, M.F., Ren, F., & Baranowitz, S.A. (2014). Investigation of the electrical properties of doped melanin. MOLECULAR BIOLOGY of the CELL, 25. Retrieved from

  • Xia, Y., Li, T., Ren, F., Gao, Y., & Wang, H. (2014). Failure analysis of pinch-torsion tests as a thermal runaway risk evaluation method of Li-ion cells. Journal of Power Sources, 265, pp. 356-362. doi: 10.1016/j.jpowsour.2014.04.040

  • Chen, Y., Yang, L., Ren, F., & An, K. (2014). Visualizing the structural evolution of LSM/xYSZ composite cathodes for SOFC by in-situ neutron diffraction. Scientific Reports, 4. doi: 10.1038/srep05179

  • Sun, C.N., Zawodzinski, T.A., Ren, F., Keum, J.K., & Chen, J. (2014). Nanostructure-Driven Ion Transport in PCBM-Based Polymer Electrolytes. CARBON ELECTRONICS: INTERFACES to METALS, DIELECTRICS, and ELECTROLYTES, 61(7), pp. 31-33. doi: 10.1149/06107.0031ecst

  • Ren, F., Cox, T., & Wang, H. (2014). Thermal runaway risk evaluation of Li-ion cells using a pinch-torsion test. Journal of Power Sources, 249, pp. 156-162. doi: 10.1016/j.jpowsour.2013.10.058

  • Li, H. & Ren, F. (2014). Resonant ultrasound spectroscopy offers unique advantages as a nondestructive test method. Advanced Materials and Processes, 172(10), pp. 17-19.

  • Sun, C.N., Zawodzinski, T.A., Ren, F., Keum, J.K., & Chen, J. (2014). Nanostructure-driven ion transport in PCBM-based polymer electrolytes. ECS Transactions, 61(7), pp. 31-33. doi: 10.1149/06107.0031ecst