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Resistivity of Semiconductors by Four Probe Method at Different
Temperatures and Determination of the Band-Gap. (Basic Model)
The experiment consists of:
(a) Four Probe Arrangement (Spring Type)
(b) Oven up to 200°C
(c) Sample: Ge Crystal N or P type
(d) Thermometer :( 0-2000C)
(e) Digital Four Probe Set-up
The set up consists of the following three units.
(I) Multirange Electronic Millivolt meter
(ii) Constant Current Source
(iii) Oven power Supply: To provide suitable voltage for the oven with provision
For L & H rates of heating.
Complete in all respect with manual and test results
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