Related Experiment Video
Updated: Jun 17, 2026

Synthesis of Non-uniformly Pr-doped SrTiO3 Ceramics and Their Thermoelectric Properties
Published on: August 15, 2015
Effect of Zn doping on improving crystal quality and thermoelectric properties of borosilicides
Takao Mori1, David Berthebaud, Toshiyuki Nishimura
1National Institute for Materials Science (NIMS), Materials Nanoarchitechtonics Center (MANA), Namiki 1-1, Tsukuba, 305-0044, Japan. MORI.Takao@nims.go.jp
Abstract:
Transition-metal (Mo, Mn, Fe, Rh, Ti, Cu, Zn) doping was carried out on the borosilicide compound REB(44)Si(2) (RE = rare earth). REB(44)Si(2) compounds exhibit Seebeck coefficients greater than 200 microV K(-1) at high temperatures and unlike most compounds, the figure of merit shows a steep increase at T > 1000 K making them promising high-temperature thermoelectric materials. Although zinc itself does not remain in the final product, zinc doping was found to improve the crystal quality, which has been a long-standing problem for the borosilicides. As a result, a significant increase of the thermoelectric power factor by more than 30% was achieved.

