- #1
alexyangfox
- 1
- 0
question about "neutral region" in Derivating Shockley equation
Hey guys.
I met a problem when derivating the Shockley equation.
a few steps before I finally get the Shockley equation , I met the Equation
in the attachment.
the book said , because there's no electric field in the neutral region.
So the E is 0,that means the second term disappears.
But why?
When there's a voltage say 5v Across the Pn junction(say,forward bias) ,how could it be possible that there's no electric field in the neutral region?
Or the Ideal diode model computes the "voltage" in the depletion layer,say twist the bands?
thanks,
Best regards.
Hey guys.
I met a problem when derivating the Shockley equation.
a few steps before I finally get the Shockley equation , I met the Equation
in the attachment.
the book said , because there's no electric field in the neutral region.
So the E is 0,that means the second term disappears.
But why?
When there's a voltage say 5v Across the Pn junction(say,forward bias) ,how could it be possible that there's no electric field in the neutral region?
Or the Ideal diode model computes the "voltage" in the depletion layer,say twist the bands?
thanks,
Best regards.