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Highly enhanced thermoelectric properties of p-type CuInSe2 alloys by the Vacancy Doping
Highly enhanced thermoelectric properties of p-type CuInSe2 alloys by the Vacancy Doping
- Source :
- Scripta Materialia. 149:88-92
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- The electrical conductivity, Seebeck coefficient and thermal conductivity of the Cu1−xIn1−ySe2.05 alloys were investigated, which were synthesized by solid-state reaction method combined with spark plasma sintering (SPS) technique. With the increasing of vacancy contents, the electron and phonon scattering were enhanced. The electrical and thermal transport properties of the samples changed accordingly. The Cu0.99InSe2.05 bulk sample achieves the highest ZT value of 0.31 at 773 K due to optimized electrical and thermal transport properties, which is 3 times higher than that of pristine CuInSe2.05. Moreover, it is the highest ZT value in CuInSe2 system in all of previous literatures.
- Subjects :
- Materials science
Phonon scattering
Condensed matter physics
Mechanical Engineering
Doping
Metals and Alloys
Spark plasma sintering
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
0104 chemical sciences
Thermal conductivity
Mechanics of Materials
Electrical resistivity and conductivity
Seebeck coefficient
Vacancy defect
Thermoelectric effect
General Materials Science
0210 nano-technology
Subjects
Details
- ISSN :
- 13596462
- Volume :
- 149
- Database :
- OpenAIRE
- Journal :
- Scripta Materialia
- Accession number :
- edsair.doi...........fc12878971c48dd3e286f9b989a3d4d1
- Full Text :
- https://doi.org/10.1016/j.scriptamat.2018.02.023