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Index > Heap > does p-silicon conduct current?

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idle



Joined: 06 Jan 2011
Posts: 359
Location: Ukraine
idle
silicon is a 4-valent element(1 atom may create relations with 4 neighbors using those electrons)

n(egative)silicon = silicon + phosphorus
adding 5-valence impurities of phosphorus "puts the gaps" leaving 1 electron floundering about, thus material resistance in the current gets low

p(ositive)silicon = silicon + aluminum
adding 5-valence impurities of aluminum "creates more gaps" i.e. positive ions(atoms with lack of electrons), thus will material resistance rise up?

thanx
Post 10 Aug 2011, 12:04
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edfed



Joined: 20 Feb 2006
Posts: 4237
Location: 2018
edfed
if you want to understand it, study more the transistor effect.
this is the name of the semiconductor's main effect.

it is directlly related to electric fields.
electric fields are what makes the electrons mobile or not.
Post 10 Aug 2011, 12:34
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rain_storm



Joined: 05 Apr 2007
Posts: 67
Location: Ireland
rain_storm
I would imagine that both P and N type doping are required. But thats just a guese.
Post 10 Aug 2011, 12:36
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idle



Joined: 06 Jan 2011
Posts: 359
Location: Ukraine
idle
Image
Post 10 Aug 2011, 15:42
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