. : . , - . , . . . . .
. - , v . E: =v/ (2.14).
^2/(*) (n) (p). . .
: . . () ,
j= jn+jp=qnv+qpv, q- , n p - . (2.14): j=qnnE+qppE=q(nn+pp)E (2.15)
j= E( - ) , = n- p= q(nn+pp) (2.16)
(2.16) , () I=qni(n+p)=qpi(n+p); n- n=qnn0n, p- p=qpp0p.
. , . . , , 2 - , : jn =qndn(x)/dx, jp = -qpdp(x)/dx, (2.17) dn(x)/dx dp(x)/dx - x; n p - .
- . , x (. 1, .1) dn(x)/dx=0. , 2 3 dn(x)/dx .
:
n=nkT/q, p=pkT/q (2.18)
"-" (2.17) jp , dp(x)/d(x)<0.
. . , . . jn=qnnE+qndn(x)/dx (2.19) jp=qppE-qpdp(x)/dx (2.20).
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, () . .
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