Shovit Bhattacharya

Temperature-Resolved Electrical Transport Response of ZrO x N y Thin Films under Alternating Electrical Perturbation

Abstract Cryogenic thermometry based on DC resistance measurements in polycrystalline thin films can be influenced by extrinsic grain-boundary contributions, limiting reproducibility and interchangeability. Here, we investigate zirconium oxynitride (ZrOxNy) thin films using tempe...

Realization of a Robust High-Efficiency n-Type Mg3(Sb, Bi)2/p-Type MgAgSb-Based Thermoelectric Power Generator for Harvesting Low-Grade Waste Heat

Abstract Thermoelectric generators (TEGs) enable direct conversion of waste heat into electrical energy. Although Bi2Te3-based alloys have long been the conventional thermoelectric materials, concerns over their toxicity and limited availability have encouraged the development of...

Probing of Strategic Disorder to Tune Thermoelectric Properties in Sb, Zn Co-doped Mg2Si0.3Sn0.7 through Extended X-ray Absorption Fine Structure Spectroscopy

Abstract Defect engineering in thermoelectric materials is a key approach for controlling lattice vibrations. Introducing defects in the lattice brings disorder, which facilitates scattering of phonons and suppresses heat transport. Although this can be beneficial for enhancing t...