Dr. Karthieka Rajarajeswaran
Engineering the material response to invisible radiation. My work bridges the critical gap between fundamental crystallography and applied diagnostics, developing flexible, lead-free interfaces for the next generation of X-ray detection.
Architectures of Detection
Sustainable Perovskites
Addressing the toxicity crisis in traditional sensor materials. We synthesize defect-perovskite crystal structures that maintain high atomic number attenuation capabilities without the environmental burden of lead.
Morphological Engineering
Controlling electron transport at the nanoscale. By utilizing thermal decomposition to grow vertical Zinc Oxide nanorods, we create direct charge carrier highways, significantly reducing recombination losses in thick film sensors.
Conformable Interfaces
Transcending rigid substrates. Integrating active nanocrystals into flexible PVDF-HFP polymer matrices to create humidity-resistant, conformable sensors for intra-oral and wearable applications.