Question

Electrical Conductivity Determination for Intrinsic Silicon at 150°C Cakulate the electrical conductivity of intrinsic silicon at 50 degrees * C C.100 100^ C 200^ C and plot the conductivity that you have found versus temperature 300 degrees * C

Answer #1

for 150^{o}C the values considered as standard as an
example

at 150^{o}C = 273 + 150 = 423 K

n_{i} value for silicon is 4 x 10^{19}
/m^{3}

mobility of electron is
_{e} = 0.06 m^{2}/V-s

mobility of hole is
_{h} = 0.022 m^{2}/V-s

e = 1.6 x 10^{-19} C

using equation for conductivity is
= n_{i} e (
_{e} +
_{h} )

= 4 x 10^{19} x 1.6 x 10^{-19} x ( 0.06 + 0.022
)

= 0.52 / -m

but remaining in the problem of 50^{o}C ,
100^{o}C , 200^{o}C , 300^{o}C

for these electrical mobility vs temperature graph needed.

if you graph calculate as above. then go for plotting graph.

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