( )
ΔW0 - , ;
k = 1,38*10-23 / - ;
T - , ;
NC - , -3;
NV - , -3.
mn, mp - , ;
h = 6,63*10-34 * - ;
m = 9,1*10-31 - .
WC - , ;
WV - , ;
WF - , .
n*p = ni2 = pi2.
,
Wi , .
W T:
- ( -)
- ( -)
:
; .
n p
ND, NA - , -3;
WD, WA - , .
n ≈ ND, p ≈ NA.
,
ND, NA - .
v - , /;
- , /.
,
= 1,6*10-19 - ;
m* - , ;
1 - , ;
v = (3kT/m*)1/2 - , /.
, , .
I - , ;
B - , ;
δ , ;
RH, 3/ .
- n-.
. γ
,
γ0 γ ;
Δn, Δp - .
|
|
-... ( )
, , .
, , ; , n- -...
p-n ,
k = 1,38*10-23 / - ;
- , ;
pp0, pn0 - p n , -3;
nn0, np0 - n p , -3;
ρi, ρn, ρp - , n - p- ;
b = μn/μp - .
p-n-
,
IS ( );
U .
Dp, Dn - , 2/;
pn0, np0 - n p ;
S - , 2;
Lp, Ln - , ,
τp, τn - , .