:
- = 0;
- p-n ;
- .
Dnp - Dpn n -
D np = npo(eU/fT -1)
D pn = pno(eU/fT -1) (5.12)
U .
f T - .
In = qSDnDnp/Ln
Ip = qSDpDpn/Lp (5.13)
S
Lp Ln n p ;
Dn Dp .
(5.13) (5.12) :
I = In+ Ip= Io(eU/fT -1) (5.14)
I [] - p-n ,
Io= f(q, S, Dn, Dp) (5.15)
;
. 5.3 p-n
( = 300 ) fT =0,026 5.14:
I = Io(e40U -1) (5.16)
U > +0,05 à e40U 1.
p-n U .
I = Ioe40U (5.17)
-0,05 à 40U 1 .
I = I ~ I [] (5.18)
, -n - .
p-n
U Uo6p max
U > Uo6p max (5.19)
( , . 5.3)
Uo6p max
, .. p-n-.
p-n-, .
.
p-n .
p-n , .
, , .
( , .5.4).
|
|
:
. 5.4 p-n
p-n .
-n .
, p-n , ... . -.
p-n , .
-n . .
.. .
, .