How can we experimentally measure the build-in voltage of a pn junction at thermal equilibrium?

The build-in voltage, Vbi, has a specific value for each pn junction at thermal equilibrium: around 0.7V ... 0.9V. (Vbi ~ kT/q * ln (NA * ND / ni2)) Using a voltmeter between anode and cathode, it...

18 August 2014 6,502 8 View