Preparation and Characterization of P-Type Bi0.45Sb1.55Te3 Thin Film Using Pulsed CO2 Laser

DOI: 10.4236/msa.2014.55034   PDF   HTML     2,424 Downloads   3,371 Views  


P-type Bi0.45Sb1.55Te3 thermoelectric material was synthesized using cold pressing process. The obtained sample was prepared in the form of pellet with a diameter of 10 mm and 2 mm thick and used as a target for laser ablation. The laser source was a pulsed CO2 laser working at a wavelength of 10.6 μm with a laser energy density of 2 J/cm2 per pulse. P-type Bi0.45Sb1.55Te3 thermoelectric thin films were deposited on Si substrates for different ablation times of 1, 2 and 3 h. The cross-section and surface morphologies of the thermoelectric films were investigated using field emission scanning electron microscopy (FE-SEM). The results show that the thickness and average particle size of the films increased from 35 to 58 nm, and 28 to 35 nm, respectively, when the ablation time was increased from 1 to 3 h. The crystalline structure of the TE films was investigated by X-ray diffraction (XRD).

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Muangma, R. , Kosalathip, V. , Kumpeerapun, T. and Limsuwan, P. (2014) Preparation and Characterization of P-Type Bi0.45Sb1.55Te3 Thin Film Using Pulsed CO2 Laser. Materials Sciences and Applications, 5, 285-291. doi: 10.4236/msa.2014.55034.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] DiSalvo, F.J. (1999) Thermoelectric Cooling and Power Generation. Science, 285, 703-706.
[2] Rowe, D.M. (2006) General Principles and Basic Consideration. In: Rowe, D.M., Ed., Thermoelectrics Handbook: Macro to Nano, CRC Press, New York, 1.1-1.10.
[3] Scherrer, H. and Scherrer, S. (2006) Thermoelectric Properties of Bismuth Antimony Telluride Solid Solution. In: Rowe, D.M., Ed., Thermoelectrics Handbook: Macro to Nano, CRC Press, New York, 27.1-27.16.
[4] Kosalathip, V., Dauscher, A., Lenoir, B., Migot, S. and Kumpeerapun, T. (2008) Preparation of Conventional Thermoelectric Nanopowders by Pulsed Laser Fracture in Water: Application to the Fabrication of a pn Hetero-Junction. Applied Physics A, 93, 235-240.
[5] Takashiri, M., Miyazaki, K. and Tsukamoto, H. (2008) Structural and Thermoelectric Properties of Fine-Grained Bi0.4Te3.0Sb1.6 Thin Films with Preferred Orientation Deposited by Flash Evaporation Method. Thin Solid Films, 516, 6336-6343.
[6] Duan, X. and Jiang, Y. (2010) Annealing Effects on the Structural and Electrical Transport Properties of N-Type Bi2Te2.7Se0.3 Thin Films Deposited by Flash Evaporation. Applied Surface Science, 256, 7365-7370.
[7] Goncalves, L.M., Alpuim, P., Min, G., Rowe, D.M., Couto, C. and Correia, J.H. (2008) Optimization of Bi2Te3 and Sb2Te3 Thin Films Deposited by Co-Evaporation on Polyimide for Thermoelectric Applications. Vacuum, 82, 1499-1502.
[8] Budak, S., Muntele, C.I., Minamisawa, R.A., Chhay, B. and Lla, D. (2007) Effects of MeV Si Ions Bombardments on Thermoelectric Properties of Sequentially Deposited BixTe3/Sb2Te3 Nano-Layers. Nuclear Instruments and Methods in Physics Research Section B, 261, 608-611.
[9] Kim, D.H., Byon, E., Lee, G.H. and Cho, S. (2006) Effect of Deposition Temperature on the Structural and Thermoelectric Properties of Bismuth Telluride Thin Films Grown by Co-Sputtering. Thin Solid Films, 510, 148-153.
[10] Lee, H.J., Hyun, S., Park, H.S. and Han, S.W. (2011) Thermoelectric Properties of N-Type Bi-Te Thin Films with Various Compositions. Microelectronic Engineering, 88, 593-596.
[11] Jeon, S.J., Oh, M., Jeon, H., Hyun, S. and Lee, H.J. (2011) Effects of Post-Annealing on Thermoelectric Properties of Bismuth-Tellurium Thin Films Deposited by Co-Sputtering. Microelectronic Engineering, 88, 541-544.
[12] Fan, P., Zheng, Z.H., Liang, G.X., Zhang, D.P. and Cai, X.M. (2010) Thermoelectric Characterization of Ion Beam Sputtered Sb2Te3 Thin Films. Journal of Alloys and Compounds, 505, 278-280.
[13] Giani, A., Boulouz, A., Pascal-Delannoy, F., Foucara, A., Charies, E. and Bover, A. (1999) Growth of Bi2Te3 and Sb2Te3 Thin Films by MOCVD. Materials Science and Engineering B, 64, 19-24.
[14] Bailini, A., Donati, F., Zamboni, M., Russo, V., Passoni, M., Casari, C.S., Li Bassi, A. and Bottani, C.E. (2007) Pulsed Laser Deposition of Bi2Te3 Thermoelectric Films. Applied Surface Science, 254, 1249-1254.
[15] Lu, Y. and Knize, R.J. (2007) Modified Laser Ablation Process for Nanostructured Thermoelectric Nanomaterial Fabrication. Applied Surface Science, 254, 1211-1214.
[16] Sun, T., Ma, J., Yan, Q.Y., Huang, Y.Z., Wang J.L. and Hng, H.H. (2009) Influence of Pulsed Laser Deposition Rate on the Microstructure and Thermoelectric Properties of Ca3Co4O9 Thin Films. Journal of Crystal Growth, 311, 4123-4128.
[17] Colceag, D., Dauscher, A., Lenoir, B., Da. Ros, V., Birjega, R., Moldovan, A. and Dinescu, M. (2007) Pulsed Laser Deposition of Doped Skutterudite Thin Films. Applied Surface Science, 253, 8097-8101.
[18] Kumpeerapun, T., Scherrer, H., Khedari, J., Hirunlabh, J., Weber, S., Dauscher, A., Lenoir, B., Zighmati, B., Jahed, H.M. and Kosalathip, V. (2006) Performance of Low Cost Thermoelectric Modules Fabricated from Hot Pressing and Cold Pressing Materials. Proceedings International Conference on Thermoelectrics, Vienna, 6-10 August 2006, 136-139.

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