Bi2Te2.97Se0.03

Bi₂Te₂.₉₇Se₀.₀₃ is a near-stoichiometric bismuth telluride selenide compound—a doped variant of the classic Bi₂Te₃ thermoelectric material family with minor selenium substitution. This is a well-established n-type or p-type semiconductor optimized for solid-state heat pumping and power generation, where the small selenium content fine-tunes the band structure and carrier concentration relative to pure Bi₂Te₃. The material is widely deployed in commercial thermoelectric coolers and generators because it delivers a favorable balance of electrical conductivity, thermal conductivity, and Seebeck coefficient at room temperature; engineers select it over alternatives when compact, vibration-free cooling or waste-heat recovery is needed, and especially where the modest selenium doping enhances performance consistency and reduces tellurium cost compared to higher-Te stoichiometries.