Question 164: Semiconductors and Logic Gates

Question

What is the conductivity of a semiconductor sale having electron concentration of  $$5 	imes {10^{18}}\,\,{m^{ - 3}},$$ hole concentration of $$5 	imes {10^{19}}\,\,{m^{ - 3}},$$ electron mobility of 2.0 m
2
V
$$-$$1
s
-1
and hole mobility of 0.01 m
2
V
$$-$$1
s
$$-$$1
?
(Take charge of electronas 1.6 $$ 	imes $$ 10
$$-$$19
c)

Accepted Answer

Conductivity of semiconductor,
$$\sigma $$ = e$$\left( {{\eta _e}{\mu _e} + \eta '{\mu _h}} ight)$$
= 1.6 $$ 	imes $$ 10
$$-$$19
(5 $$ 	imes $$ 10
18
$$ 	imes $$ 2 + 5 $$ 	imes $$ 10
19
$$ 	imes $$ 0.01)
= 1.6 $$ 	imes $$ 1.05
= 1.68

Answer

1.68 ($$\Omega $$-m)
$$-$$1

Answer

1.83 ($$\Omega $$-m)
$$-$$1

Answer

0.59 ($$\Omega $$-m)
$$-$$1

Answer

1.20 ($$\Omega $$-m)
$$-$$1

Semiconductors and Logic Gates

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