Enhanced atomic ordering leads to high thermoelectric performance in AgSbTe 2

著者: Subhajit Roychowdhury, Tanmoy Ghosh, Raagya Arora, Manisha Samanta, Lin Xie, Niraj K. Singh, Ajay Soni, Jiaqing He, Umesh V. Waghmare, Kanishka Biswas - Science 2021 被引用: 645

enhances cationic ordering, which simultaneously improves electronic properties by tuning disorder-induced localization of electronic states and reduces lattice thermal conductivity through spontaneous formation of nanoscale (~2 to 4 nanometers) superstructures and coupling of soft vibrations localized within ~1 nanometer around cadmium sites with local strain modulation. The strategy is applicable to most other thermoelectric materials that exhibit inherent atomic disorder.