Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 615, Issue -, Pages 177-180Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2014.06.198
Keywords
Thermoelectric materials; High-pressure; Solid state reactions; Skutterudite
Categories
Funding
- National Science Foundation of China [51201149, 51121061, 51072175]
- Natural Science Foundation for Distinguished Young Scholars of Hebei Province of China [E2014203150]
- Key Basic Research Project of Hebei [14961013D]
Ask authors/readers for more resources
p-Type iodine filled CoSb3 skutterudite, which is inaccessible under ambient pressure, was synthesized with high pressure synthesis technique. The successful filling of iodine into voids of CoSb3 crystal structure was verified by combined measurements including X-ray diffraction, Raman spectroscopy, and specific heat. The highest filling fraction of 0.79 was achieved for the sample with a nominal composition of I1.2Co4Sb12. Beneficial from such a high filling fraction of iodine and the strong phonon-scattering from iodine fillers, the thermal conductivity reached as low as 0.7 W m(-1) K-1 for I0.79Co4Sb12, which is the lowest value among all elemental filled skutterudites. Introducing iodine fillers is thus a practical way to further suppress thermal conductivity for single- and multiple-filled skutterudites. (C) 2014 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available