DR. Roy's Research field

Solar Cells

Experimental Investigation of Photocatalytic and Photovoltaic activity of Titania/Rice Husk Crystalline Nano-Silica Hybrid Composite, Solar Energy Materials and Solar Cells, Elsevier, Vol. 172, pp 93-98, 2017

Bio-materials

A Simple Method to Control Morphology of Hydroxyapatite Nano- and Microcrystals by Altering Phase Transition Route” ACS, Crystal Growth & Design, Vol.13, No. 8, pp. 3414, 2013

Water Splitting

Multiferroic

Magnetoelectric coupling in sol-gel synthesized dilute magnetostrictive - piezoelectric composite thin films, Journal of Applied Physics, Vol.110, pp. 036101-. 036104, 2011

Selected also in Virtual Journal of Nanoscale Science & Technology, APS and AIP, Vol. 24, pp. 7-10 , 2011

Fuel cells

Energy demands are growing and polymers play an integral role in advancing energy generation technologies. Currently we focus on synthesizing and characterizing polymer electrolyte membranes for fuel cells: both acidic and alkaline environments. We use various synthesis methods and processing techniques to produce polyelectrolyte films with a focus on composite materials that have nanometer scale features. Small-angle x-ray scattering, differential scanning calorimetry, thermal gravimetric analysis, conductivity measurements, FTIR, and NMR are the tools used to analyze the relationship between how the material structure impacts its properties from the nanometer scale all the way up to understanding its macroscopic performance.