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Modeling >> Semiconductor Devices >> metal semiconductor contact
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Message started by rajesh14 on Oct 16^th, 2009, 10:18am

Title: metal semiconductor contact
Post by rajesh14 on Oct 16^th, 2009, 10:18am

hi all..
i want to know whats happening when metal n semiconductor come into contact ...
can anyone explain exactly whats going on there...i didnot get why the energy band diagrams bend at contact under thermal equilibrium...?

Title: Re: metal semiconductor contact
Post by raja.cedt on Oct 18^th, 2009, 9:35pm

hi,
actually in thermal equilibrium current should be zero..so Fermi level should be flat. so keep your fermi level flat and complete remaining Energy Band diagram. otherwise you can say like you need electric field to stop carrier exchange at thermal equilibrium.

You can get this info in street man book

Thanks,
rajasekhar