naa a22 4500 510803598 CHVBK 20180411083406.0 cr unu---uuuuu 180411e20130301xx s 000 0 eng 10.1007/s11664-012-2352-7 doi (NATIONALLICENCE)springer-10.1007/s11664-012-2352-7 Enhanced Thermoelectric Properties of (PbTe)0.88(PbS)0.12 Composites by Sb Doping [Elektronische Daten] [J.Q. Li, X.X. Li, F.S. Liu, W.Q. Ao, H.T. Li] The effects of Sb doping on (PbTe)0.88(PbS)0.12 composites prepared by melting, ball milling, and spark plasma sintering were investigated. The x-ray diffraction results indicate that all samples Sb x Pb1−x Te0.88S0.12 with x = 0, 0.002, 0.004, 0.006 and 0.008 are composites containing PbTe with NaCl-type structure as the major phase and PbS with NaCl-type structure as the minor phase. The electrical resistivity is reduced with increasing Sb doping, from 1.95×10−5Ωm for Sb content x=0 to 5.55×10−6Ωm for x=0.008 at 298K, showing that Sb is an efficient electron donor. However, the absolute Seebeck coefficient decreases, from 196μV/K for x=0 to 57.0μV/K for x=0.008 at 298K, and the thermal conductivity increases, from 0.989W/mK for x=0 to 1.64W/mK for x=0.008, with Sb doping. The power factor and figure of merit ZT can be enhanced by proper Sb doping. The maximum dimensionless figure of merit ZT of 1.20 was obtained in the sample Sb0.004Pb0.996Te0.88S0.12 at 773K. TMS, 2012 PbTe/PbS alloys nationallicence Sb doping nationallicence thermoelectric property nationallicence Li J.Q. College of Materials Science and Engineering, Shenzhen University and Shenzhen Key Laboratory of Special Functional Materials, 518060, Shenzhen, People's Republic of China aut Li X.X. College of Materials Science and Engineering, Shenzhen University and Shenzhen Key Laboratory of Special Functional Materials, 518060, Shenzhen, People's Republic of China aut Liu F.S. College of Materials Science and Engineering, Shenzhen University and Shenzhen Key Laboratory of Special Functional Materials, 518060, Shenzhen, People's Republic of China aut Ao W.Q. College of Materials Science and Engineering, Shenzhen University and Shenzhen Key Laboratory of Special Functional Materials, 518060, Shenzhen, People's Republic of China aut Li H.T. College of Materials Science and Engineering, Shenzhen University and Shenzhen Key Laboratory of Special Functional Materials, 518060, Shenzhen, People's Republic of China aut Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/3(2013-03-01), 366-371 0361-5235 42:3<366 2013 42 11664 https://doi.org/10.1007/s11664-012-2352-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11664-012-2352-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Li J.Q. College of Materials Science and Engineering, Shenzhen University and Shenzhen Key Laboratory of Special Functional Materials, 518060, Shenzhen, People's Republic of China aut NATIONALLICENCE 700 1- Li X.X. College of Materials Science and Engineering, Shenzhen University and Shenzhen Key Laboratory of Special Functional Materials, 518060, Shenzhen, People's Republic of China aut NATIONALLICENCE 700 1- Liu F.S. College of Materials Science and Engineering, Shenzhen University and Shenzhen Key Laboratory of Special Functional Materials, 518060, Shenzhen, People's Republic of China aut NATIONALLICENCE 700 1- Ao W.Q. College of Materials Science and Engineering, Shenzhen University and Shenzhen Key Laboratory of Special Functional Materials, 518060, Shenzhen, People's Republic of China aut NATIONALLICENCE 700 1- Li H.T. College of Materials Science and Engineering, Shenzhen University and Shenzhen Key Laboratory of Special Functional Materials, 518060, Shenzhen, People's Republic of China aut NATIONALLICENCE 773 0- Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/3(2013-03-01), 366-371 0361-5235 42:3<366 2013 42 11664 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer