Fe-Doping Effect on Thermoelectric Properties of p-Type Bi0.48Sb1.52Te3
AbstractThe substitutional doping approach has been shown to be an effective strategy to improve ZT of Bi2Te3-based thermoelectric raw materials. We herein report the Fe-doping effects on electronic and thermal transport properties of polycrystalline bulks of p-type Bi0.48Sb1.52Te3. After a small amount of Fe-doping on Bi/Sb-sites, the power factor could be enhanced due to the optimization of carrier concentration. Additionally, lattice thermal conductivity was reduced by the intensified point-defect phonon scattering originating from the mass difference between the host atoms (Bi/Sb) and dopants (Fe). An enhanced ZT of 1.09 at 300 K was obtained in 1.0 at% Fe-doped Bi0.48Sb1.52Te3 by these synergetic effects. View Full-Text
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Mun, H.; Lee, K.H.; Kim, S.J.; Kim, J.-Y.; Lee, J.H.; Lim, J.-H.; Park, H.J.; Roh, J.W.; Kim, S.W. Fe-Doping Effect on Thermoelectric Properties of p-Type Bi0.48Sb1.52Te3. Materials 2015, 8, 959-965.
Mun H, Lee KH, Kim SJ, Kim J-Y, Lee JH, Lim J-H, Park HJ, Roh JW, Kim SW. Fe-Doping Effect on Thermoelectric Properties of p-Type Bi0.48Sb1.52Te3. Materials. 2015; 8(3):959-965.Chicago/Turabian Style
Mun, Hyeona; Lee, Kyu H.; Kim, Suk J.; Kim, Jong-Young; Lee, Jeong H.; Lim, Jae-Hong; Park, Hee J.; Roh, Jong W.; Kim, Sung W. 2015. "Fe-Doping Effect on Thermoelectric Properties of p-Type Bi0.48Sb1.52Te3." Materials 8, no. 3: 959-965.