(.8.10):
(8.29)
Nq (Nq= ).
(8.29) , Nq.
= = = ~ , : = (8.30)
.
, (, ), b - (b= ).
R, - .
, . , , , , , .
~1011 1019 -3, ~104 10-13 . , 10-4.
U , , . U RT (I=U/RT). , .
, . , U, , .
: I=eGK, (8.31)
G=gV ; g , V , : K=τn/tn +τ/t (8.32)
tn tp . d U: tn=d2/(μnU), tp=d2/(μpU), K=(τnμn+τpμp)U/d2, : I=egV(τnμn+τpμp)U/d2. (8.33)
, , .
: Q=KΔf, (8.34)
Δf , . .
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