Journal
ENERGY & ENVIRONMENTAL SCIENCE
Volume 6, Issue 10, Pages 2916-2920Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ee41859f
Keywords
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Funding
- National Natural Science Foundation of China [51202008, 51271069]
- Major State Basic Research Development Program of China (973 Program) [2012CB619400]
- Fundamental Research Funds for the Central Universities [HIT. BERTIII. 201205]
- South University of Science and Technology of China
- Shenzhen government
- Program for New Century Excellent Talents in University of Ministry of Education of China [NCET-12-0160]
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We present a high ZT similar to 1.4 in textured Bi0.875Ba0.125CuSeO obtained by a hot-forging process. The carrier mobility along the direction perpendicular to the pressing direction was significantly increased, resulting in increase in the electrical conductivity and maximization of the power factor at 923 K from 6.3 mu W cm(-1) K-2 for the sample before hot-forging to 8.1 mu W cm(-1) K-2 after the hot-forging process. Therefore, the maximum ZT was significantly increased from similar to 1.1 to 1.4 through texturing for Bi0.875Ba0.125CuSeO, which is the highest ZT ever reported among oxygen containing materials.
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