Bi2 Te4 Pb1

Bi₂Te₄Pb₁ is a lead-doped bismuth telluride compound belonging to the V-VI semiconductor family, engineered to modify the thermoelectric properties of the well-established Bi₂Te₃ system. This is a research-grade material primarily investigated for enhancing figure-of-merit (ZT) in thermoelectric devices; lead substitution is explored to tune carrier concentration, reduce lattice thermal conductivity, or improve electrical properties compared to the baseline ternary compound. The material is relevant to next-generation thermoelectric cooling and power generation applications where performance optimization beyond conventional Bi₂Te₃ is pursued.