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Van der Pauw Experiment, VDX-01
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Van der Pauw Experiment, VDX-01

85400.00 - 100800.00 INR/Set

Product Details:

  • Material Physics Material Science
  • Usage Laboratory use
  • Color Grey
  • Supply Ability : 100 Set Per Day
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Price And Quantity

  • 85400.00 - 100800.00 INR/Set
  • 1 Set

Product Specifications

  • Laboratory use
  • Physics Material Science
  • Grey

Trade Information

  • Telegraphic Transfer (T/T), Delivery Point (DP), Cheque, Cash in Advance (CID), Cash Advance (CA), Cash on Delivery (COD), Cash Against Delivery (CAD)
  • 100 Set Per Day
  • 1 Week
  • Contact us for information regarding our sample policy
  • Africa, Middle East, Western Europe, Eastern Europe, South America, North America, Central America, Australia, Asia
  • All India
  • ISO 9001:2015 CE

Product Description

Van der Pauw Set-Up for measurement of resistivity and determination of hall coeffiecients in semiconductor samples.

Introduction

Semiconductor material research and device testing often involve determining the resistivity and Hall mobility of a sample. The resistivity of the semiconductor material is often determined using a four-point probe technique. With a fourprobe, or Kelvin, technique, two of the probes are used to source current and the other two probes are used to measure voltage. Using four probes eliminates measurement errors due to the probe resistance, the spreading resistance under each probe, and the contact resistance between each metal probe and the semiconductor material. Because a high impedance voltmeter draws little current, the voltage drops across the probe resistance, spreading resistance, and contact esistance are very small. One common Kelvin technique for determining the resistivity of a semiconductor material is the van der Pauw (VDP) method. The van der Pauw method involves applying a current and measuring voltage using four small contacts on the circumference of a flat, arbitrarily shaped sample of uniform thickness. This method is particularly useful for measuring very small samples because geometric spacing of the contacts is unimportant. Effects due to a sample size, which is the approximate probe spacing, are irrelevant.

Description of Experimental Set-up

1. Probes Arrangement

2. Van der Pauw Set-up, VDP-01

3. Electromagnet, EMU-50V

4. Constant Current Power Supply, DPS-50

5 .Digital Gaussmeter, DGM-202



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