1. a) Three different semiconductor slabs of equal dimensions (i.e. same height, width and thickness which are all known) of three different materials (Si, Ge and GaAs) are dopped with equal concentration of acceptor atoms. Unfortunately the scientists cannot identify which slab contains which semiconductor. You have a voltage source and current measuring device available. How will you identify the materials?
1. a) Three different semiconductor slabs of equal dimensions (i.e. same height, width and thickness which are all known) of three different materials (Si, Ge and GaAs) are dopped with equal concentration of acceptor atoms. Unfortunately the scientists cannot identify which slab contains which semiconductor. You have a voltage source and current measuring device available. How will you identify the materials?
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Transcribed Image Text:1. a) Three different semiconductor slabs of equal dimensions (i.e. same height, width and thickness which are all known) of three different materials (Si,
Ge and GaAs) are dopped with equal concentration of acceptor atoms. Unfortunately the scientists cannot identify which slab contains which
semiconductor. You have a voltage source and current measuring device available. How will you identify the materials?
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1. a)
Given:
Semiconductor slabs of equal dimensions of three different materials (Si, Ge, GaAs) are dopped with equal concentration of acceptor atom.
Introduction:
A PN Junction Diode is one of the simplest semiconductor devices around, and which has the characteristic of passing current in only one direction only. However, unlike a resistor, a diode does not behave linearly with respect to the applied voltage as the diode has an exponential current-voltage ( I-V ) relationship and therefore we can not describe its operation by simply using an equation such as Ohm’s law.
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