Skip to main content Accessibility help
×
Home

Correlation of Microstructural Properties With Thermoelectric Performance of Bi0.5Sb1.5Te3 Films Fabricated by Electroplating

  • Elena Koukharenko (a1), Xiaohong Li (a2), Jekaterina Kuleshova (a3), Marcel Fowler (a4), Nicole Frety (a5), John M Tudor (a6), Steven P Beeby (a7), Iris Nandhakumar (a8) and Neil M White (a9)...

Abstract

This study shows for the first time, the correlation between the microstructural properties (chemical composition and its homogeneity) and the thermoelectric properties for p-type Bi0.5Sb1.5Te3 electroplated films (10-15 μm thickness). High microstructural quality of Bi0.5Sb1.5Te3 electroplated films (a close to stoichiometry chemical composition with its high homogeneity elements distribution) was achieved by using an additive in the plating solution (sodium ligninsulfonate) as a surfactant agent. A fine-grained microstructure of 280 nm to 1μm has been observed for these materials, which half that of the plated films without a surfactant. The thermoelectric properties of electrodeposited Bi0.5Sb1.5Te3 films obtained without microstructural optimisation, show modest Seebeck coefficient values of 20-120 μm/K, electrodeposited film with an optimised microstructure exhibits very high values of Seebeck coefficient of 220-300 μm/K.

Copyright

References

Hide All
1 Rowe, D. M.Handbook of Thermoelectrics”, ed. (CRC, Boca Raton, 1995) p. 701
2 Xiao, F. Hangarter, C. Yoob, B., Rheem, Y., Lee, K.H. Myung, N. V., Electrochimica Acta 53 8103 (2008).
3 Magri, P. Boulanger, C. and Lecuire, J.M. J. Mater. Chem. 6(5) 773 (1996).
4 Yoo, B.Y. Huang, C.K. Lim, J.R. Herman, J. Ryan, M.A. Fleurial, J.P. and Myungal, N.V. Electrochimica Acta 50 4371 (2005).
5 Frari, D. Del, Diliberto, S. Stein, N. Boulanger, C. Lecuire, J.M. Thin Solid Films 483 44 (2005).
6 Fleurial, J.P. Borshchevsky, A. Ryan, M. A. Phillips, W. M. Snyder, J. G. Caillat, T. Kolawa, E. A. Herman, J. A. Mueller, P. Nicolet, M. in: MRS 1998 Fall Meeting Symp. Proc. 545, eds. Tritt, T.M. Kanatzidis, M.G. Lyon, H.B. and Mahan, G.D. (1998).
7 Fleurial, J.P. Borshchevsky, A. Ryan, M. A. Phillips, W. M. Snyder, J. G. Caillat, T. Kolawa, E.A. Herman, J. A. Mueller, P. Nicolet, M. in: MRS 2000 Spring Meeting Symp. Proc. 626 eds. Tritt, T.M. Nolas, G. S. Mahan, G. Kanatzidis, M. G. Mandrus, D. (2000).
8 Koukharenko, E. Frety, N. Shepelevich, V.G. Tedenac, J.C., Journal of Crystal Growth. 222 (4) 773 (2001).
9 Ivanova, L.D. Brovikova, S.A. Zusmann, G. Rainshaus, P. Inorganic Materials 30 (6) 770 (1994).
10 Li, X. Koukharenko, E. Nandhakumar, I. S. Tudor, J. Beeby, S. P. and White, N. M. Phys. Chem. Chem. Phys. 11 3584 (2009).

Keywords

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed