논문 해외 국제전문학술지(SCI급) Thermoelectric properties of Zn(4)Sb(3) prepared by hot pressing
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2011-09
- 저자명 오민욱
- 학술지명 MATERIALS RESEARCH BULLETIN
- 발행처명 PERGAMON-ELSEVIER SCIENCE LTD
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 7
홈페이지논문 초록 (Abstract)
Polycrystalline specimens of the thermoelectric material Zn(4)Sb(3) were prepared by the hot-pressing method at various temperatures and pressures and their thermoelectric properties were evaluated in a temperature range from 298 K to 673 K. A single phase of Zn(4)Sb(3) was obtained in the samples prepared at 673 K with a pressure above 150 MPa, whereas ZnSb was placed in the Zn(4)Sb(3) matrix for the samples prepared at 100 MPa. The electrical transport properties of the single phase compound showed p-type conduction and metallic transport behavior based on the temperature dependence. The sample produced at 673 K under a pressure of 200 MPa exhibited the highest ZT value of 1.36 at 673 K. This study suggests that the dense and single-phase Zn(4)Sb(3) compound is a route to achieve a high thermoelectric performance. (c) 2011 Elsevier Ltd. All rights reserved.