Fabrication and Thermoelectric Properties of Bi₂Te₃ Prepared by Combining Chemical Bath Method and Hot Pressing

Abstract:

Bi₂Te₃ bulk materials were prepared by combining chemical bath method and hot pressing at 80 MPa and 375 °C for 1 h. The samples before and after hot pressing were examined by X-ray diffraction, and the fracture surface of the bulk materials was observed by field emission scanning electron microscopy (FESEM). The electrical transport properties of the bulk materials were measured from room temperature up to 250 °C under Ar. The results indicate that sulfur addition can prevent the oxidation of Bi₂Te₃ nanostructures; however, it is not good to the thermoelectric properties of Bi₂Te₃ under the present synthesis conditions.

• Periodical: Materials Science Forum (Volumes 743-744)
• Pages: 65-69
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.743-744.65
• Online since: January 2013
• Authors: Feng Yuan Li, Yuan Yuan Wang, Song Chen, Zhen Qin, Ke Feng Cai
• Keywords: Bi₂Te₃, Chemical Bath, Hot Pressing, Thermoelectric Property

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