Resistivity Of Semiconductors by four probe method

Resistivity of semiconductors by four probe method at different Temperatures  Determination of Band gap

The experiment consists of the following 

• Four Probe Arrangement 
• Oven upto 200 C
• Sample  Ge Crystal mounted 
• Thermometer 0 200 C
• Four Probe Setup 

 Constant Current power supply digital Accuracy : 0.25 of the reading 1 digit Load Regulation : 0.03 for no load to full load 

Electronic Millivoltmeter 200 mV Accuracy   0.1 of reading  1 digit Impedence  1 Mohm 

Display  3 digit 7 segment LED 12.5mm height with auto polarity and decimal indication.

Specification