Novel thermoelectric materials based on boron-doped silicon microchannel plates

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Pengliang Ci
  • Jing Shi
  • Fei Wang
  • Shaohui Xu
  • Zhenya Yang
  • Pingxiong Yang
  • Lianwei Wang

Detail(s)

Original languageEnglish
Pages (from-to)1618-1620
Journal / PublicationMaterials Letters
Volume65
Issue number11
Publication statusPublished - 15 Jun 2011

Abstract

The thermoelectric properties of boron-doped silicon microchannel plates (MCPs) were investigated. The samples were prepared by photo-assisted electrochemical etching (PAECE). The Seebeck coefficient and electrical resistivity at room temperature (25 °C) were measured to determine the thermoelectric properties of the samples. In order to decrease the very high resistivity, boron doping was introduced and by modulating the doping time, a series of samples with different resistivity as well as Seebeck coefficient were obtained. Boron doping changed the electrical resistivity of the samples from 1.5 × 105 Ω cm to 5.8 × 10-3 Ω cm, and the absolute Seebeck coefficient deteriorated relatively slightly from 674 μV/K to 159 μV/K. According to the Seebeck coefficient and electrical conductivity, the power factor was calculated and a peak value of 4.7 × 10-1 mW m-1 K-2 was obtained. The results indicate that silicon MCPs doped with boron are promising silicon-based thermoelectric materials. © 2011 Elsevier B.V.

Research Area(s)

  • Boron doping, Electrical properties, Porous materials, Thermoelectric materials

Citation Format(s)

Novel thermoelectric materials based on boron-doped silicon microchannel plates. / Ci, Pengliang; Shi, Jing; Wang, Fei; Xu, Shaohui; Yang, Zhenya; Yang, Pingxiong; Wang, Lianwei; Chu, Paul K.

In: Materials Letters, Vol. 65, No. 11, 15.06.2011, p. 1618-1620.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review