Work

Thermoelectric Properties of Ru2Si3-Based Chimney-Ladder Phases

Year: 2007

Type: article

Abstract: The variations of the crystal structures and thermoelectric properties of the Ru1-xRexSiy chimney-ladder phases were studied as a function of the Re concentration. A series of chimney-ladder phases with a compositional formula of Ru1-xRexSi1.539+0.178x are formed in a wide compositional range, 0.14 ≤ x ≤ 0.76. The composition of the chimney-ladder phase is systematically deviated from the idealized composition satisfying the valence electron concentration rule: VEC=14. Measurements of thermoelectric properties reveal that the chimney-ladder phases exhibit n-type semiconducting behavior at low Re concentrations and p-type semiconducting behavior at high Re concentrations, which are well consistent with the prediction based on the deviation of the composition of the chimney-ladder phase from the idealized composition.

Source: Materials science forum

DOI: 10.4028/www.scientific.net/msf.561-565.463

Authors: Kyosuke Kishida, Akira Ishida, Katsushi Tanaka, Haruyuki Inui

Institution: Kyoto University

Language: English

Topic: Advanced Thermoelectric Materials and Devices

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Funder: Ministry of Education, Culture, Sports, Science and Technology

OpenAlex ID: W2245174604

FWCI: 0.172

Cites: 14

Cited by: 4

Related to: 10