- #1
anhnha
- 181
- 1
I read this from a lecture slide:
• The electric field across the interface of a pn junction gives rise to a voltage across the interface,called the built-in voltage,V0
• The built-in voltage cannot be measured by externally connecting probes to the device.
• V0 is due to the difference between the Fermilevels of the joined materials, and can be
calculated from this
Can you explain the second point "The built-in voltage cannot be measured by externally connecting probes to the device."?
• The electric field across the interface of a pn junction gives rise to a voltage across the interface,called the built-in voltage,V0
• The built-in voltage cannot be measured by externally connecting probes to the device.
• V0 is due to the difference between the Fermilevels of the joined materials, and can be
calculated from this
Can you explain the second point "The built-in voltage cannot be measured by externally connecting probes to the device."?