논문 국내 국내전문학술지(KCI급) ReSi1.75 단결정의 열전특성에 미치는 Ge 첨가효가
- 학술지 구분 국내전문학술지(KCI급)
- 게재년월 2007-01
- 저자명 오민욱
- 학술지명 대한금속·재료학회지
- 발행처명 대한금속·재료학회
- 발행국가 국내
- 논문언어 외국어
- 전체저자수 7
홈페이지논문 초록 (Abstract)
The effect of Ge addition on the thermoelectric properties of ReSi1.75 single crystals has been investigated in the temperature range between 323 and 1073 K. The value of the electrical resistivity along [100] of the ternary alloys is lower than that of the binary in the whole temperature range, while the value along [001] of the ternary approaches to the value of the binary as the temperature increases. The band-gap along [001] for the ternary alloys is smaller than that of the binary. The ternary alloys show the large values of the Seebeck coefficient along [001] at 323 K. The maximum dimensionless figures of merit of 0.45 at 923 K and 0.8 at 1073 K are obtained for ReSi1.73Ge0.02 samples along [100] and [001], respectively.