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http://nopr.niscpr.res.in/handle/123456789/29709| Title: | Transport properties of amorphous CuO-Bi2O3 semiconducting pellets |
| Authors: | Gawande, W J Pakade, S V Yawale, S P Burghate, D K Motke, S G |
| Issue Date: | Feb-1997 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The results of measurement of de-electrical conductivity and activation energy have been reported for four different composition of CuO-Bi2O3 glass powder pellets pressed at 50°C in the temperature range of 300 - 493 K. A plot of -log σ versus 1/T shows two different regions of conduction suggesting two types of conduction mechanisms switching from one type to another occurring at Rnee temperature. The de-conductivity increases with increase in temperature of the sample and also with increase of mol% of CuO. Activation energy calculated for both regions (LTR and HTR) is below 1 eV, thus the electrical conduction is electronic. Activation energy decreases with increase of mol% of CuO. Non-adiabatic hopping conduction was observed in the sample. A plot of dielectric constant versus log of frequency shows zig-zag nature. Dielectric constant decreases with increase in mol% of CuO. |
| Page(s): | 33-37 |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Appears in Collections: | IJEMS Vol.04(1) [February 1997] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJEMS 4(1) 33-37.pdf | 1.08 MB | Adobe PDF | View/Open |
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