Van der Pauw measurment- source unit

  • #1
I wanted to study electrical behavior of thin films. Can anybody suggest me suitable source measure unit please?
(also of low budget)
Power supply: Voltage (few volts)
measurement: current (micro- milliamps)
 

Answers and Replies

  • #2
15,397
13,414
I've found some cheap devices on amazon looking after "microampere meter" or "milliampere meter"
 
  • #3
Thanks . there are many as youmentioned
 
  • #4
898
67
You could use a lock-in amplifier to apply a small AC current using a shunt resistor and measure the AC voltage across the sample.
 

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