Organic Electronics, Organic Photovoltaics, Scanning Probe Microscopy, Polymer Electrodes, Nanoscale Electrical Characterization, Solution Processing
My research investigates sustainable organic electronic materials, with a focus on connecting
processing, structure, and electronic function. We are interested in how processing conditions
shape nanoscale structure and charge transport, and how these relationships can be harnessed
in organic photovoltaics, sensors, and flexible electronic devices. Current Research Directions
include:
(a) Processing - Structure - Electronic Property Relationships
We study how processing conditions influence thin-film morphology and electronic
performance in organic photovoltaics and semitransparent electrodes. Using scanning probe
microscopy (SPM), particularly conductive atomic force microscopy (c-AFM) we probe local
charge transport at the nanoscale. These insights are paired with complementary structural
characterization techniques to build a comprehensive picture of processing, morphology, and
function.
(b) Environmentally Sustainable Approaches to Organic Electronics
We explore green processing strategies to reduce reliance on toxic solvents and additives. This
includes using greener solvents, solid additives, and solution blends to tune aggregation and
morphology in bulk heterojunction systems. In parallel, we investigate sustainable formulations
and post-treatments of PEDOT: PSS thin films, studying how their conductivity and morphology
can be tuned through environmentally conscious processing.
B.Sc., University of Colombo, Sri Lanka, Ph.D., State University of New York at Binghamton, Postdoctoral Training: University of Illinois Urbana- Champaign
