Best scientific research 2022


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BEST SCIENTIFIC
RESEARCH - 2022 
227 
const
=
+
=



0
(3) 
It is the same everywhere in the p-n junction diode. 
,


n
j
,
0
kT
c
e
N
n

=
,
ln
0
c
N
n
kT
=


en
=
dx
dn
eD
en
N
n
kT
e
en
j
n
n
c
n
n
+

=







+

=




ln
(4) 
Here 
n
n
m
e


=
- electron mobility, 


collision time. 
As a result of the external influence, the current of electrons in the p-n transition in 
the electron gas becomes zero. The thermodynamic equilibrium is disturbed, 
(
)



e
+

=

0
and the gradient of the electrochemical potential is different from zero. If 
0

it depends on the coordinate, the concentrations of electrons and holes also depend on the 
coordinate. As the temperature of the charge carriers varies throughout the sample, any 
change in temperature causes the chemical potentials of electrons and holes to separate 
differently. Due to this, a quasi-potential difference occurs between points with different 
concentrations of charge carriers. This turns the diode into a source of EC [14]. 
The charge carriers in the diode 
do not change when heated,  but change. For 
this reason, the uniform heating of the current carriers along the sample creates the current. 
The current associated with the heating of charge carriers accelerates the recombination 
process. The heating of the charge carriers in the p-n junction increases the recombination 
currents in the diode. Heating increases the diffusion current. An increase in the temperature 
of electrons causes an increase in the diffusion coefficient. This causes heated charge 
carri
ers to form ЕУК in the calculation of the concentration gradient. If there is no heating 
and lighting, EYuK will not be produced. In order to produce ЕУК, it is necessary to 
debalance the gas of electrons and holes without applying voltage to the sample. The 
electron-hole gas in the p-n transition is out of balance under the influence of the electric 
field and light [15]. 



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