Thermoelectric properties of n-type (Pb1-xGex)Te fabricated by hot pressing method
- Authors
- Choi, JS; Kim, HJ; Kim, HC; Oh, TS; Hyun, DB; Lee, HW
- Issue Date
- 1997
- Publisher
- IEEE
- Citation
- PROCEEDINGS ICT'97 - XVI INTERNATIONAL CONFERENCE ON THERMOELECTRICS, pp.228 - 231
- Journal Title
- PROCEEDINGS ICT'97 - XVI INTERNATIONAL CONFERENCE ON THERMOELECTRICS
- Start Page
- 228
- End Page
- 231
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/27676
- DOI
- 10.1109/ICT.1997.667089
- Abstract
- To investigate the effects of solid solution alloying on the thermoelectric properties of PbTe-based thermoelectric materials, 0.3 wt% Bi-doped (Pb1-xGex)Te alloy powders (0 less than or equal to x less than or equal to 0.15) were fabricated by "melting/grinding" process, and hot-pressed at 650 degrees C and 750 degrees C for 1 hour in vacuum. At the temperatures ranging from 25 degrees C to 450 degrees C, the (Pb1-xGex)Te alloys exhibited more negative Seebeck coefficient, higher electrical resistivity and lower thermal conductivity with increasing. the GeTe content. The temperature, where the figure-of-merit of (Pb1-xGex)Te reached a maximum, was lowered with increasing the GeTe content x. When hot-pressed at 650 degrees C, 0.3 wt% Bi-doped PbTe and (Pb0.9Ge0.1)Te exhibited a maximum figure-of-merit of 1.07x10(-3)/K at 400 degrees C and 1.25 x 10(-3)/K at 300 degrees C, respectively.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > Materials Science and Engineering Major > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/27676)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.