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a) A Si crystal has been doped with phosphorus (P). The donor concentration is 105 cm?. Calculate the conductivity and r
Posted: Mon May 02, 2022 3:56 pm
by answerhappygod
- A A Si Crystal Has Been Doped With Phosphorus P The Donor Concentration Is 105 Cm Calculate The Conductivity And R 1 (36.49 KiB) Viewed 21 times
a) A Si crystal has been doped with phosphorus (P). The donor concentration is 105 cm?. Calculate the conductivity and resistivity of the crystal (10 points). Table 5.1 Selected typical properties of Ge, Si, and GoAs at 300 K E, X (eV) (V) 0.66 4.13 N N, n (cm) (cm) (cm) 1.04 x 109 6.0 1018 2.3 x 1013 . (cm' v-l-) E, Ge 3900 16 HA (emy-15) / 1900 0.12 0.56b 450 0.260 1.080 m/ 0.23a 0.40 0.38a 0.600 Si 1.10 4.01 2.8 x 1019 1.2 x 1019 11.9 1.0 x 100 1350 (b) Explain why semiconductor conductivity changes with temperature (20 points). Use energy band diagram drawings to illustrate your answer.