Naresh C Osti

Naresh C Osti

Postdoctoral Research Associate


I am a postdoctoral research associate within the Chemical and Engineering Materials division at the Oak Ridge National Laboratory (ORNL), Oak Ridge, TN. I received my M.S in Physical Chemistry from Tribhuvan University (Nepal), and a PhD in Chemistry from Clemson University (USA) in 2014. During my PhD, I have used neutron scattering techniques to study the structure and dynamics in conjugated polymers, and ionomers of potential energy applications. In addition to neutron, I have extensively used x-ray scattering and atomic force microscopy techniques to study the structure and surface morphology of polymers and polymer nano-composite in solid substrate. As a post-doc, I am involved on the neutron studies of structure and dynamics of nano-confined fluids at fluid solid interfaces (FSIs) of energy-related materials that advance the field of energy storage and electro-catalysis in the Fluid Interface Reactions, Structures and Transport (FIRST) Center at ORNL funded by DOE’s Office of Basic Energy Sciences. My long term goal is to establish an independent research on composites of polymers and inorganics materials using neutron techniques that can help to meet the demand of current energy needs. I can be reached at for further information.


Best teaching assistant award 2013, Chemistry Department,
Clemson University, Clemson, SC


• Osti N.C., Cote A., Mamontov E., Ramirez-Cuesta A.J., Wesolowski D.J., Diallo S.O., Characteristic features of water dynamics in restricted geometries investigated with quasi-elastic neutron scattering, Chemical Physics, 465–466, 1-8 (2016)
• Ashley A. Buelt, Naresh C. Osti, Yamin Htet, Catherine A. Conrad, Mina F. Shehata, Ruttayapon Potai, Andrew G. Tennyson, Dvora Perahia, and Rhett C. Smith, Conjugated Polymers with m-Pyridine Linkages: Synthesis, Photophysics, Solution Structure and Film Morphology, J. Mater. Chem. C, 2014, 2, 8113
• Samantha L. Kristufek, Thora R. Maltais, Eleanor G. Tennyson, Naresh C. Osti, Dvora Perahia, Andrew G. Tennyson and Rhett C. Smith, “Bipyridyl-modified phosphonium polyelectrolytes: synthesis, photophysics, metal ion coordination and layer-by-layer assembly with anionic conjugated polymers” Polym. Chem., 2013, 4, 5387-5394
• Sabina Maskey, Naresh C. Osti, Dvora Perahia, Gary S. Grest, Poly-Dots: Soft Conjugated Polymeric Nanoparticles, ACS Macro Lett., 2013, 2, pp 700–704
• Dilru R. Ratnaweera, Umesh M. Shrestha, Naresh C. Osti, Chung-Mien Kuo, Stephen Clarson, Ken Littrell, Dvora Perahia, Self-Assembly of Semi-Fluorinated Diblock Copolymer in a Selective Solvent”, Soft Matter, 2012, 8, 2176-2184.
• Eleanor G. Tennyson, Susan He, Naresh C. Osti, Dvora Perahia and Rhett C. Smith, Luminescent phosphonium polyelectrolyte prepared from a diphosphine chromophore: synthesis, photophysics, and layer-by-layer assembly, J. Mater. Chem., 2010, 20, 7984–7989

Facilities Used

-Lujan at LANL

Specialized Equipment

Wide Angle X-ray Scattering (WAXS)
Small Angle Neutron Scattering (SANS)
Small Angle X-ray Scattering (SAXS)
Quasi-Elastic Neutron Scattering (QENS)
X-ray Diffraction (XRD)
Neutron Reflectivity (NR)
Thermal Analysis Techniques (DSC, TGA)
Molecular Spectroscopy (UV-Vis)
Atomic Force Microscopy (AFM)
Nuclear Magnetic Resonance (1H NMR)
Contact Angle
Light Polarizable Microscope