Thermoelectric Characteristics of Bulk Cr₂Te₃ with Low Lattice Thermal Conductivity

In this study, we aimed to synthesize bulk Cr₂Te₃ and evaluate its thermoelectric properties. Previously, Cr₂Te₃ with a layered structure has primarily been synthesized in thin film form for studies that focused on its magnetic properties. The intrinsic layered structure of Cr₂Te₃ can contributes to its low lattice thermal conductivity. Our experimental results confirmed the successful synthesis of a homogeneous single-phase specimen and revealed a significantly low lattice thermal conductivity of 0.31 W/mK at 673 K. Additionally, we explored the substitution of titanium and germanium at chromium sites as a method to enhance thermoelectric performance, achieving a notable increase in the power factor.