 
        
        Исследование фотопроводимости в полупроводниках
..pdfя
| 
 | Ы | 
 | 
 | 
| 
 | Э | ( | ) | 
| Э | Ы | (Э ) | 
 | 
АВЫ В В. ,
| И | ВА И | 
 | В И | И | 
| 
 | В | В | И А | 
 | 
| 
 | я | 
 | 
| 210700.62 « | ы | ы я » | 
– 2013
1.
2.
| 2.1. | 
 | 
| 2.2. | . | 
| 2.3. | 
 | 
| 2.4. | 
 | 
3.
4.
4.1.
4.2.
4.3
4.4.
5.
6.
2
| 1. | 
 | 
| – | , | 
| , | , | 
.
| 
 | 2. | Ч | Ч | 
| 
 | , | 
 | , | 
| ( | , | 
 | . .) | 
| 
 | 
 | 
 | . | 
,
.
| . | , | 
.
,
,
| , | , | 
.
2.1.
| , | , | 
| , | (n p) | 
| n0 | p0, . . | 
| 
 | n n n0 | 
p p p0 .
3
 
| 
 | С | 
 | 
 | 
 | . | 
 | 
 | 
 | 
| 
 | . | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | ( | , | 
 | . | .) | 
 | 
 | 
| 
 | 
 | ( | 
 | 
 | 
 | 
 | 
 | 
 | 
| « | - | », | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | 
 | « | – | 
 | – | . 1 | 
 | 
| 
 | » | . .). | 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||
| ( | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | ) | 
 | 
 | g | R, | ( . | . 1). | 
| 
 | 
 | 
 | 
 | 
 | 
 | , | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | . | 
| 
 | 
 | 
 | В | я | 
 | ы | 
 | . | 
gn
| g p | . | 
| . 2 | 
 | 
| gn | g p | 
,
. Rn Rp –
| . | , | 
( .2):
| n g | 
 | R ; | p g R . | |
| t | n | n | t | p p | 
| 
 | 
 | |||
(
)
n
4
 
P ,
:
| Rn | n n | RP | p p | |||
| 
 | 0 | , | 
 | 0 | ||
| 
 | ||||||
| 
 | n | 
 | 
 | 
 | P | 
 | 
: 1 n –
1 p –
| , | : | 
 | 
 | 
 | 
| n | n | 
 | p | p | 
| t | gn | ; | t | g p . | 
| n | 
 | p | 
| , | (1) | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | . | |
| , | 
 | 
 | (1) | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | . | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | (1) | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | : | |
| 
 | ( n) | g ; ( p) | 
 | g | . | 
 | 
 | ||||
| 
 | s | n n | 
 | s | 
 | p p | 
 | 
 | |||
| 
 | , | n | p | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | (1) | 
 | 
 | 
 | 
 | 
 | 
 | (2) | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | t | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | n | 
 | 
 | ||
| 
 | n(t ) gn n Cn EXP | 
 | 
 | 
 | ; | ||||||
| 
 | 
 | p p | 
 | p | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | t | 
 | 
 | ||
| 
 | p(t ) g | C | 
 | EXP | 
 | 
 | 
 | . | |||
| 
 | 
 | p | 
 | ||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||
;
.
,
(1)
( n)s ( p)s ,
,
,
(2)
.
n p,
:
(3)
5
 
| Сn, Cp – | , | 
| : | 
 | 
t = 0
| ( | ), | t = 0 | 
:
| n | 
 | n n | s | s | 
 | 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | t | 
 | 
 | ||||||
| C | 
 | g | 
 | ( n) | ; n(t ) ( n) | 1 | EXP | 
 | 
 | ; | |
| 
 | n | ||||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | t | 
 | 
 | 
| C | 
 | g | 
 | ( p) | ; p(t ) ( p) | 1 | EXP | 
 | 
 | . | |
| 
 | p | 
 | |||||||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |
| 
 | p | 
 | p p | s | s | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||||
n 0 .
(4)
| 
 | . 2 | . | |
| t = t1 | , | 
 | |
| t t1, gn 0 | : t t1, n ( n)1. | : | |
| 
 | t1 | 
 | |
| 
 | 
 | 
 | 
 | 
| n | 
 | ||
| Cn ( n)1 EXP | 
 | 
 | |
| 
 | 
 | 
 | (t t | ) | |||
| n(t ) ( n)1 | EXP | 1 | . | ||||
| 
 | 
 | 
 | n | 
 | 
 | 
 | |
| : | 
 | 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | (t t1) | 
 | 
 | ||
| p(t ) ( p)1 | EXP | . | |||||
| 
 | |||||||
| 
 | 
 | 
 | p | 
 | 
 | 
 | |
| 
 | 
 | . 3 | 
 | 
 | 
 | 
 | |
.
,
,
(5)
(6)
6
| 
 | 
 | 
 | . | (4) - | 
| (6), | 
 | n | 
 | .3 | 
| p | 
 | 
 | 
 | - | 
| 
 | 
 | 
 | 
 | |
| 
 | 
 | , | 
 | 
 | 
| 
 | 
 | . | 
 | 
 | 
| n | p | : | , | 
 | 
| 
 | 
 | ( | ) | 
 | 
| e - | 
 | . | n | p . | 
| 2.2. | 
 | 
 | . | 
 | 
| 
 | 
 | . | 
| – | 
 | . | 
| 
 | 
 | , | 
| 
 | . | , | 
| , | 
 | . | 
| , | . | 
 | 
.
| : | ( | ) | 
( n ( ) p )
.
| . | Eg , | 
,
7
| 
 | 
 | , | , | 
| 
 | . | 
 | 
 | 
| , | , | 
 | . | 
| 
 | « | – | ». | 
.
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | Eg . | 
 | 
 | 
 | 
 | 
 | 
| 
 | Ec Ed , | Ed | 
 | - | 
 | 
 | 
 | 
 | 
 | , | 
 | 
 | 
| 
 | 
 | 
 | 
 | , | 
 | 
 | , | 
 | 
 | . | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | , | 
 | , | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | . | 
 | 
 | Ea | Ev | |
| 
 | 
 | 
 | 
 | 
 | 
 | . | – | 
 | 
 | 
 | 
 | |
| 
 | 
 | , | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | . | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
 | . | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | . | I(x) | 
 | 
 | 
 | 
 | 
 | 
 | , | 
 | 
 | 
 | 
| 
 | 
 | 
 | , | 
 | 
 | x | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | , | 
 | – | 
 | 
 | . | 
 | 
 | 
 | 
 | , | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | , | 
| 
 | 
 | 
 | 
 | x | x+dx, | : | 
 | 
 | 
 | 
 | 
 | 
 | 
| dI I(x dx) I(x ) I | EXP x dx | I | EXP x | 
 | EXP dx | 
 | 
 | |||||
| I | EXP x EXP | dx I | EXP x I | EXP x | 
 | 1 | 
 | |||||
| I x 1 dx 1 I x dx, | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |||||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | ||||||
| 
 | 
 | I I0 | 1 R . | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 
 | 
 | dx | 
 | x . | 
 | 
 | , | 
 | 
 | 
8
| 
 | 
 | , | I x . | 
 | 
 | |
| 
 | 
 | G ( ) I0 1 R EXP( x)dx . | : | |||
| 
 | 
 | 
 | ||||
| 
 | 
 | 
 | L | 
 | 
 | 
 | 
| 
 | 
 | 
 | 0 | 
 | 
 | 
 | 
| 
 | 
 | , | 
 | 
 | 
 | 
 | 
| 
 | 
 | G I0 | 1 R . | 
 | 
 | |
| ( ) | – | 
 | 
 | 
 | 
 | , | 
| 
 | 
 | 
 | , | 
 | 
 | 
 | 
| . | 
 | 
 | 
 | 
 | 
 | , | 
| 
 | 
 | 
 | 
 | 
 | 
 | - | 
| . | , | , | 
 | 
 | 
 | , | 
| 
 | 
 | 
 | 
 | ( | 
 | ), | 
| 
 | 
 | 
 | 
 | 
 | 
 | . | 
| 
 | 
 | g | 
 | 
 | 
 | – | 
| 
 | 
 | . | d <<1 ( | d – | ), | |
| I(x) МШЧsЭ | ( | 
 | ) | g | 
 | 
 | 
| . | 
 | 
 | 
 | 
 | 
 | 
 | 
| , . . | 
 | 
 | 
 | 
 | 
 | 
 | 
-
.
| , | 
 | , | 
| , | 
 | – n , | 
| , | – | : | 
9
| n | p e nn e pp . | (7) | 
,
I
I .
| , | , | , | 
(7):
I = en n ep p e n n e p p ,
n, p, n, p
| . | , | (8), | 
:
,
. ,
| « | – | » | ( | 
.
,
| , | 
 | , | 
| , | 
 | . | 
| . | 
 | , | 
| – | 
 | ~ 10 12 c | 
| E | 
 | |
| , | 
 | 
 | 
| , | 
 | , | 
| . | , | 
 | 
.
,
(
),
-
(8)
.
Eg ),
n, p ,
–
10
