3rd TAGRA

Bismuth telluride is a layered crystal with unique properties utilized in thermoelectrics and various sensors; it is a topological insulator and a promising material for spintronics. Of practical interest is the type of transport that achieves the maximum charge transfer density with maximum phonon scattering, which makes it possible to increase the thermoelectric figure...

Silk fibroin has attracted considerable interest as a sustainable biopolymer for flexible electronics, biointegrated sensors, dielectric layers, and frequency-selective devices because of its biocompatibility, mechanical flexibility, film-forming ability, and solution processability. However, pristine fibroin is generally characterized by high electrical resistance and broad non-Debye...

Interface defects in perovskite solar cells (PSCs) are recognized as a major source of non-radiative recombination, which adversely affects device performance. In this study, the impact of interface defect density on the performance of a lead-free FTO/TiO₂/KSnI₃/Cu₂O/Au perovskite solar cell was investigated using the SCAPS-1D simulation platform. The simulation model was initially validated...

This study investigates the temperature-dependent dielectric relaxation of bromobenzene in two structurally different nonpolar solvents, benzene and n-hexane, with the aim of elucidating the role of solvent structure and intermolecular interactions in the dynamics and thermodynamics of dipole reorientation. The complex dielectric permittivity, including its real (ε′) and imaginary (ε″)...

Based on the perovskite material, lead-based perovskite solar cells exhibit outstanding photovoltaic properties, but their toxicity poses environmental and health issues that hinder sustainable commercialization. In this study, a lead-free cesium titanium chloride based perovskite solar cell is proposed and optimized with numerical simulation and hybrid optimization. The structure of the...