Fabrication and thermoelectric properties of the SrTi0.8Nb0.2O3 /Au nanocomposite thin films

doi:10.3969/j.issn.1000-1565.2017.04.004SrTi<sub>0.8</sub>Nb<sub>0.2</sub>O<sub>3</sub>/Au纳米复合薄膜的制备及热电性能

Journal of Hebei University (Natural Science Edition) ›› 2017, Vol. 37 ›› Issue (4): 355-359.DOI: 10.3969/j.issn.1000-1565.2017.04.004SrTi_0.8Nb_0.2O₃/Au纳米复合薄膜的制备及热电性能

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Fabrication and thermoelectric properties of the SrTi_0.8Nb_0.2O₃ /Au nanocomposite thin films

GUO Shuang,FU Nian,WU Xiaolin, WANG Jianglong, WANG Shufang

College of Physics Science and Technology, Hebei University, Baoding 071002, China

Received:2017-01-14 Online:2017-07-25 Published:2017-07-25

Abstract

Abstract: In this work, SrTi_0.8Nb_0.2O₃/Au nanocomposite thin films were fabricated by pulsed laser deposition(PLD)method, and the effect of Au nanoparticles content on the thermoelectric properties of the films were investigated.With the increase of Au nanoparticles content, the electrical resistivity of the films increases due to the decreased carrier concentration and mobility.The absolute value of Seebeck coefficient of the films is also found to increase with the Au nanoparticles content, which is mainly caused by the increased carrier concentration and the carrier energy filtering effect of the interface barrier between Au and SrTi_0.8Nb_0.2O₃.The film sample with Au nanoparticles content of 0.94% has the best power factor, indicating that the incorporation of a small amount of Au nanoparticles can improve the thermoelectric performance of SrTi_0.8Nb_0.2O₃ thin films.

Key words: pulsed laser deposition, nanocomposite thin films, thermoelectric properties

CLC Number:

O469

GUO Shuang,FU Nian,WU Xiaolin, WANG Jianglong, WANG Shufang. Fabrication and thermoelectric properties of the SrTi_0.8Nb_0.2O₃ /Au nanocomposite thin films[J]. Journal of Hebei University (Natural Science Edition), 2017, 37(4): 355-359.

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Fabrication and thermoelectric properties of the SrTi_0.8Nb_0.2O₃ /Au nanocomposite thin films

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