Potential barrier of Silicon Diode

  • Thread starter otomanb
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  • #1
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As we know the potential barrier of silicon diode is 0.7V at "Normal Temperature"
But if the Temperature is 120 degree Centigrade then what will happen?


1) the Potential Barrier will increase
2) Decrease
3) Remain Same

Please Explain also!
 
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Answers and Replies

  • #2
berkeman
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As we know the potential barrier of silicon diode is 0.7V at "Normal Temperature"
But if the Temperature is 120 degree Centigrade then what will happen?


1) the Potential Barrier will increase
2) Decrease
3) Remain Same

Please Explain also!
The relevant equation is the "Diode Equation", relating the voltage, current and temperature of the junction. Can you write out that equation for us, and tell us the answer to your question?

If you don't see the Diode Equation in your textbook, you can find it at wikipedia.org, or with a Google search.
 
  • #3
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sorry !:confused:
I dont have any equation. I found this question in ECAT(Engineering College Admition Test Book).
And it was just a MCQs
 

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