| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 봄 (05/01 ~ 05/03, 부산 벡스코(BEXCO)) |
| 권호 |
23권 1호 |
| 발표분야 |
무기재료_포스터 |
| 제목 |
Enhancing n-type thermoelectric performance of Bi2Te3 via inclusion of K2Sex (x = 1 - 6) |
| 초록 |
Thermoelectric (TE) technology is important for renewable power generation by recovering waste heat. Bi2Te3 is the representative TE materials operating near room temperature. Its n-type materials show much inferior performance to the p-type counterpart. In this presentation, we report new high-performance n-type Bi2Te3 thermoelectric systems via inclusion of K2Sex (x =1 - 6). This substantially suppresses thermal conductivity to ~0.86 W·m-1·K-1 at 420 K with the minimal deterioration in power factor. Consequently, a high peak TE figure of merit ZT~1.12 at 420 K is achieved for Bi2Te3-10 % K2Se6. |
| 저자 |
이형석, 정인
|
| 소속 |
서울대 |
| 키워드 |
Thermoelectrics; Bi2Te3; K2Sex
|
| E-Mail |
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