Abstract
A setup based on dynamic method was developed for fast Seebeck coefficient measurement from room temperature to 473 K. Two T-type thermocouples with a response time of less than 0.1 s were used to measure the dynamic temperatures of the sample. The Cu wires of the two thermocouples served as leads for Seebeck voltage measurement. The dynamic temperature feature of the setup was characterized. Test measurements were conducted with LaCo0.9Cu0.1O3 and LaCo0.85Cu0.15O3 samples with the customized setup, and the results had a difference of ±8.4% compared with the data provided by ZEM-2 (Ulvac-Riko, Japan), which showed that the Seebeck measurement with the customized setup was reliable. In addition, the error on the Seebeck coefficient caused by the dynamic variation of temperature was discussed. The setup described in this paper has the advantage of fast Seebeck coefficient measurement with a measurement speed of about 14−23 K min−1.
| Original language | English |
|---|---|
| Article number | 054904 |
| Journal | Review of Scientific Instruments |
| Volume | 85 |
| Issue number | 5 |
| Early online date | 23 May 2014 |
| DOIs | |
| Publication status | Published - May 2014 |
| Externally published | Yes |
Funding
This work was supported by the National Natural Science Foundation of China (Grant No. 51102149), National Basic Research Program of China (Grant No. 2013CB632504), and National High Technology Research and Development Program of China (Grant No. 2012AA051104).