A silicon diode inside a warm enclosure sits at

PHYSICS · Subjective · Fermi University Physics · Electronics, Instrumentation & Communication · Semiconductor devices and analogue circuits · Semiconductor devices and analogue circuits

Electronics for Measurement, Ch The junction: an element whose current is exponential in its voltage

Problem

T = 350\,\mathrm{K}

. For this problem take its ideality factor as

n = 1

and its saturation current as

I_S = 1.0\times10^{-13}\,\mathrm{A}

, both unchanged from their room-temperature values. (A real

I_S

grows by about

16

percent per kelvin; holding it fixed isolates the effect of

V_T

alone.) Using the diode equation and

V_T = k_BT/e

, find its current when the forward voltage across it is

0.60\,\mathrm{V}

Browse the problem library