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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Silva, H. Gokirmak, A. Adnane, L. Williams, N. |
| Description | Country affiliation: United States Author Affiliation: Adnane L ( Electrical and Computer Engineering, University of Connecticut, Storrs, Connecticut 06269, USA.); Williams N ( Electrical and Computer Engineering, University of Connecticut, Storrs, Connecticut 06269, USA.); Silva H ( Electrical and Computer Engineering, University of Connecticut, Storrs, Connecticut 06269, USA.); Gokirmak A ( Electrical and Computer Engineering, University of Connecticut, Storrs, Connecticut 06269, USA.) |
| Abstract | We have developed an automated setup for simultaneous measurement of Seebeck coefficient S(T) and electrical resistivity ρ(T) of thin film samples from room temperature to â ¼650 °C. S and ρ are extracted from current-voltage (I-V) measurements obtained using a semiconductor parameter analyzer and temperature measurements obtained using commercial thermocouples. The slope and the x-axis intercept of the I-V characteristics represent the sample conductance G and the Seebeck voltage, respectively. The measured G(T) can be scaled to ρ(T) by the geometry factor obtained from the room temperature resistivity measurement of the film. The setup uses resistive or inductive heating to control the temperature and temperature gradient on the sample. Inductive heating is achieved with steel plates that surround the test area and a water cooled copper pipe coil underneath that generates an AC magnetic field. The measurements can be performed using resistive heating only or inductive heating only, or a combination of both depending on the desired heating ranges. Inductive heating provides a more uniform heating of the test area, does not require contacts to the sample holder, can be used up to the Curie temperature of the particular magnetic material, and the temperature gradients can be adjusted by the relative positions of the coil and sample. Example results obtained for low doped single-crystal silicon with inductive heating only and with resistive heating only are presented. |
| ISSN | 00346748 |
| Issue Number | 10 |
| Journal | Review of Scientific Instruments |
| Volume Number | 86 |
| e-ISSN | 10897623 |
| Language | English |
| Publisher | American Institute of Physics |
| Publisher Date | 2015-10-01 |
| Publisher Place | United States |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Physics Discipline Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Instrumentation |
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