well, conductivity of semi conductor increase on increasing temperature.
lets take pn junction diode( forward bias) it have one side of +ve, and other -ve.
when we apply small current + ve(holes) pushed by +ve side of battery.
and - ve( electron) pushed by - ve side of battery , so there is barrier potential between them starts weaken then, current start rising if too much current is passed the then current will grow exponentially.and semiconductor heats gives mobility to electron , which is fixed in solid state of semiconductor, but now it's free
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Explanation:
well, conductivity of semi conductor increase on increasing temperature.
lets take pn junction diode( forward bias) it have one side of +ve, and other -ve.
when we apply small current + ve(holes) pushed by +ve side of battery.
and - ve( electron) pushed by - ve side of battery , so there is barrier potential between them starts weaken then, current start rising if too much current is passed the then current will grow exponentially.and semiconductor heats gives mobility to electron , which is fixed in solid state of semiconductor, but now it's free
that's why conductivity increased .
This is condition given for forward biased pn junction.
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