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Cubic AgPb(m)SbTe(2+m): bulk thermoelectric materials with high figure of merit | | Kuei Fang Hsu
; Sim Loo
; Fu Guo
; Wei Chen
; Jeffrey S Dyck
; Ctirad Uher
; Tim Hogan
; E K Polychroniadis
; Mercouri G Kanatzidis
; | | Date: |
6 Feb 2004 | | Journal: | Science, 303 (5659), 818-21 | | Abstract: | The conversion of heat to electricity by thermoelectric devices may play a key role in the future for energy production and utilization. However, in order to meet that role, more efficient thermoelectric materials are needed that are suitable for high-temperature applications. We show that the material system AgPb(m)SbTe(2+m) may be suitable for this purpose. With m = 10 and 18 and doped appropriately, n-type semiconductors can be produced that exhibit a high thermoelectric figure of merit material ZTmax of approximately 2.2 at 800 kelvin. In the temperature range 600 to 900 kelvin, the AgPb(m)SbTe(2+m) material is expected to outperform all reported bulk thermoelectrics, thereby earmarking it as a material system for potential use in efficient thermoelectric power generation from heat sources. | | Source: | PubMed, pmid14764873 doi: 10.1126/science.1092963 | | Services: | Forum | Review | Favorites | |
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