Published

2007-01-01

Synthesis and thermoelectric properties of polycrystalline Bi-Sb alloys.

Keywords:

Thermoelectric materials, Transport properties, Bi-Sb Compounds, Figure of merit. (en)
Materiales termoeléctricos, propiedades de transporte, Compuestos Bi-Sb, Figura de mérito. (es)

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Authors

  • J. E. Rodríguez Grupo de Materiales Termoeléctricos, Departamento de Física, Facultad de Ciencias, Universidad Nacional de Colombia.
  • D. Cadavid Grupo de Materiales Termoeléctricos, Departamento de Física, Facultad de Ciencias, Universidad Nacional de Colombia.

We have studied the behavior of thermoelectric properties of Bi0.88Sb0.12 polycrystalline samples grown by solid state reaction method. The electrical and thermal properties of the samples were obtained by Seebeck coefficient S(T), electrical resistivity p(T)  and thermal conductivity k(T) measurements as a function of temperature, in the temperature range between 77 and 300K. From S(T), p(T) and k(T) data it was possible to determine the thermoelectric power factor PF  and the dimensionless figure of merit ZT, which reach maximum values close to 20 uW/K2 - cm and 0.35, respectively. Additionally, the structural and morphological properties of the samples were studied by power x-ray diffraction analysis (XRD) and scanning electron microscopy (SEM), respectively.

Se estudia el comportamiento de las propiedades termoeléctricas de compuestos policristalinos de Bi0.88Sb0.12 preparados por el método de reacción de estado sólido. Las propiedades eléctricas y térmicas se estudiaron a partir de mediciones de coeficiente Seebeck S(T), resistividad eléctrica p(T) y conductividad térmica k(T) en función de la temperatura, en el rango de temperatura entre 77 y 300K. A partir del estudio de las propiedades de transporte se determinó el factor de potencia P F y la figura de mérito adimensional ZT, las cuales alcanzan máximos valores cercanos a 20 uW/K2 - cm y 0.35, respectivamente. Adicionalmente, las propiedades morfológicas y estructurales se estudiaron a partir del análisis de microscopía electrónica de barrido y difracción de rayos-x.

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How to Cite

APA

Rodríguez, J. E. and Cadavid, D. (2007). Synthesis and thermoelectric properties of polycrystalline Bi-Sb alloys. MOMENTO, (34), 19–27. https://revistas.unal.edu.co/index.php/momento/article/view/40558

ACM

[1]
Rodríguez, J.E. and Cadavid, D. 2007. Synthesis and thermoelectric properties of polycrystalline Bi-Sb alloys. MOMENTO. 34 (Jan. 2007), 19–27.

ACS

(1)
Rodríguez, J. E.; Cadavid, D. Synthesis and thermoelectric properties of polycrystalline Bi-Sb alloys. Momento 2007, 19-27.

ABNT

RODRÍGUEZ, J. E.; CADAVID, D. Synthesis and thermoelectric properties of polycrystalline Bi-Sb alloys. MOMENTO, [S. l.], n. 34, p. 19–27, 2007. Disponível em: https://revistas.unal.edu.co/index.php/momento/article/view/40558. Acesso em: 24 aug. 2024.

Chicago

Rodríguez, J. E., and D. Cadavid. 2007. “Synthesis and thermoelectric properties of polycrystalline Bi-Sb alloys”. MOMENTO, no. 34 (January):19-27. https://revistas.unal.edu.co/index.php/momento/article/view/40558.

Harvard

Rodríguez, J. E. and Cadavid, D. (2007) “Synthesis and thermoelectric properties of polycrystalline Bi-Sb alloys”., MOMENTO, (34), pp. 19–27. Available at: https://revistas.unal.edu.co/index.php/momento/article/view/40558 (Accessed: 24 August 2024).

IEEE

[1]
J. E. Rodríguez and D. Cadavid, “Synthesis and thermoelectric properties of polycrystalline Bi-Sb alloys”., Momento, no. 34, pp. 19–27, Jan. 2007.

MLA

Rodríguez, J. E., and D. Cadavid. “Synthesis and thermoelectric properties of polycrystalline Bi-Sb alloys”. MOMENTO, no. 34, Jan. 2007, pp. 19-27, https://revistas.unal.edu.co/index.php/momento/article/view/40558.

Turabian

Rodríguez, J. E., and D. Cadavid. “Synthesis and thermoelectric properties of polycrystalline Bi-Sb alloys”. MOMENTO, no. 34 (January 1, 2007): 19–27. Accessed August 24, 2024. https://revistas.unal.edu.co/index.php/momento/article/view/40558.

Vancouver

1.
Rodríguez JE, Cadavid D. Synthesis and thermoelectric properties of polycrystalline Bi-Sb alloys. Momento [Internet]. 2007 Jan. 1 [cited 2024 Aug. 24];(34):19-27. Available from: https://revistas.unal.edu.co/index.php/momento/article/view/40558

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