Department of Physics

Dr. P. K. Babu

Dr. P. K. Babu Associate Professor, Department of Physics
Pre-engineering Program Coordinator
Office Location: Currens Hall 426
Phone Number: (309) 298-2743
Personal Web Page:


  • Ph.D. – Indian Institute of Science, Bangalore, India, 1995


  • PHYS 211 - University Physics I
  • PHYS 212 - University Physics II
  • PHYS 421 - Electricity & Magnetism II
  • PHYS 431 - Quantum Mechanics II
  • PHYS 530 - Quantum Mechanics I
  • PHYS 560 - Topics in Solid State Physics

Research Interests

  • Synthesis of glasses containing metal, alloy and semiconducting nanoparticles.
  • Study of the optical properties of nanoparticles confined in dielectric media.
  • Investigating quantum size effects on surface plasmon resonance using optical absorption.
  • Tuning the fluorescence properties of rare-earth nanoparticles embedded in glass matrices.

Selected Publications

  • J. H. Choi, C.M. Johnston, D. X. Cao, P. K. Babu, P. Zelenay, “Se-modified Ru nanoparticles as ORR catalysts ”, J. Electroanalytical. Chem., 662 (2011) 267.
  • M. J. –F. Guinel, A. Bonakdarpour, B. Wang, P. K. Babu, F. Ernst, N. Ramaswamy, S. Mukherjee, A. Wieckowski, “Carbon-supported, Selenium-modified Ruthenium-Molybdenum catalysts for oxygen reduction in acidic media”, ChemSusChem. 2 (2009) 658.
  • “Selenium becomes metallic in Ru-Se fuel cell catalysts: An EC-NMR and XPS investigation”, P. K. Babu, A. Lewera, J,-H. Chung, R. Hunger, W. Jaegermann, N. Alonso-Vante, A. Wieckowski, E. Oldfield, J. Am. Chem. Soc. 129 (2007) 15140.
  • “C-13 NMR spectroscopy of carbon nanohorns”, H. Imai, P. K. Babu, E. Oldfield, A. Wieckowski, D. Kasuya, T. Azami, Y. Shimakawa, M. Yudasaka, Y. Kubo, S. Ijima, Phys. Rev. B 73 (2006) 125405.
  • “An NMR determination of CO diffusion on platinum electrocatalysts”, T. Kobayashi, P. K. Babu, L. Gancs, J.–H. Chung, E. Oldfield, A. Wieckowski, J. Am. Chem. Soc. 127 (2005) 14164.
  • “Bonding and motional aspects of CO adsorbed on the surface of Pt nanoparticles decorated with Pd”, P. K. Babu, H.-S. Kim, J.-H. Chung, E. Oldfield, A. Wieckowski, J. Phys. Chem. B 108 (2004) 20228.
  • “Peak effect in the superconducting mixed state of bulk Mo-Re alloys: a dc magnetization study”, S. Chaudhary, S. B. Roy, P. Chaddah, P. K. Babu, R. Nagarajan, L. C. Gupta, Phil. Mag. B 80 (2000) 1393.