Rational design from materials to devices enables an efficiency of 10.5% based on thermoelectric (Bi, Sb)<sub>2</sub>Te<sub>3</sub> and Mg<sub>3</sub>(Bi, Sb)<sub>2</sub> for power generation
Yuxin Sun, Yuke Zhu, Hao Wu, Nuo Qu, Liangjun Xie, Jianbo Zhu, Zihang Liu, Qian Zhang, Wei Cai, Fengkai Guo, Jiehe Sui
Abstract
A highly competitive ZT ave of 1.23 from 303 K to 523 K is achieved in (Bi, Sb) 2 Te 3 by composition regulation. An efficiency of 10.5% and a power density of 0.53 W cm −2 under a Δ T of 380 K are achieved in (Bi, Sb) 2 Te 3 /Mg 3 (Bi, Sb) 2 segmented modules.
Topics & Concepts
Thermoelectric effectMaterials scienceBismuthSeebeck coefficientThermoelectric materialsRational designOptoelectronicsNanotechnologyPhysicsMetallurgyThermodynamicsAdvanced Thermoelectric Materials and DevicesThermal Radiation and Cooling TechnologiesThermal Expansion and Ionic Conductivity