This blog is for the purpose of my class ELE431. This blog is used for discussion forum on any topics in Solid State Devices. Students may post any topics that is related to the subject.
1/26/08
Drift & Diffusion
What is the equation that can relate between drift and diffusion?
Assalamualaikum. To find the total carrier current, we must sum the carrier diffusion current density and drift current density. Wassalam. =Nur Suhaili Abd Samad= =EEB4B=
Salam.... The different between drift and diffusion is based on mobility and diffusion coefficient.... Beside that, drift is carrier motion due to electric field while diffusion is due to concentration gradient...
assalamualaikum.. we can relate drift and diffusion with the mobility and different coefficient.. we also can get the total carrier current with the sum of diffusion current density and drift current density.. this two motion can be relate in an equation which can be use to answers question about drift and diffusion..
hi... The equation that can relate between drift and diffusion is drift current density and diffusion current density,respectively... We also can find the total current density by adding this two formula...
The equation that relate between drift and diffusion is the TOTAL CURRENT. We can find the total current by adding the drift current (for holes and electrons) and diffusion current (for holes and electrons).
assalamualaikum, the total current is the sum of the current density for diffusion current and also the current density of drift current. -nordhuha mohd yunus- -2006687889- -eeb4a-
Assalamualaikum... Drift and diffusion are differ in the mobility and coefficient. For the total carrier current with the sum of diffusion current density and drift current density.
Asslmkm... We must sum the carrier diffusion current density and drift current density to find the total carrier current.The formula is Jtotal=Jp(drift)+Jn(drift)+Jp(diff)+Jn(diff).Thats all,tq...
total current density is the sum of total current density for drift and total current density for diffusion. Jtotal= Jp(drift)+Jp(diff)+Jn(drift)+Jn(diff).
All the diffusion and drift current density must be sum together to get then total current density.. the eq is: Jtotal=Jp(drift)+Jn(drift)+Jp(diff)+Jn(diff) -mohd sobri ibrahim -2006685703 -eeb4a
Assalammualaikum... Jtotal=Jp(drift)+Jn(drift)+Jp(diff)+Jn(diff) >> from the equation,we can conclude that drift was related to diffution.. its also depent to electric field.
salam... according to the book,the equation that can relate both drift and diffusion is; Jtotal=Jn(drift)+Jn(diff)+Jp(drift)+Jp(diff) -mohd safuan b. ali aspar- -eeb4a-
assalamualaikum the equation that can related drift and diffusion is the total current carrier density.the equation is: Jtotal=Jn(drift)+Jn(diff)+Jp(drift)+Jp(diff) -mohd ridhuan bin mohamed -2006685040 -eeb4a
Assalamualaikum.. The equation that can relate between drift and diffusion is the total current where the total current is the summation of drift current density and diffusion current density. -Nur Amalina Binti Muhamad- -2006200184- -EEB4A-
assalamualaikum...... The equation that can relate between drift and diffusion is the current. the total current is adding the drift current (for holes and electrons) and diffusion current (for holes and electrons). Jtotal=Jn(drift)+Jn(diff)+Jp(drift)+Jp(diff)
the equation that relate with the drift and diffusion is current density,total current density,conductivity,resistivity.to get all the relation above we must first determine the mobility of an electron and holes ( majority nor minority )
assalamualaikum... The total current density is the sum of the carrier for drift and diffusion which is: J(total)=Jp(diff)+Jp(drift)+Jn(diff)+Jn(drift)
Where in p-type material, n and Dn are the minority carrier mobilities and diffusion coefficient, p and Dp are their majority carrier counterpart. The opposite is the case for n-type material. \\ Nurul Mahzuzah Binti Masduki\\ \\2006687825\\ \\EEB4B\\
salam The different between drift and diffusion is based on mobility and diffusion coefficient. For the total carrier current with the sum of diffusion current density and drift current density.
The equation that can relate between drift and diffusion is total current density. total current density is the summation of drift and diffusion current density.
The equation that can related drift and diffusion is total carrier current.the total carrier current equal to the sum of diffusion current density and drift current density.
we can relate drift and diffusion with the mobility and different coefficient.. we also can get the total carrier current with the sum of diffusion current density and drift current density.. this two motion can be relate in an equation which can be use to answers question about drift and diffusion..
The formula of the diffusion and drift is is not very same.... To know the total of the current, we must to add the drift and diffusion current that is J(total)= J(diffusion current for hole and electron) + J(drift current for hole and electron)...
salam.... in general.current flow is by combination of drift and diffusion.which mean current flows by carrier drift in electric field and by diffusion in the presence of a carrier concentration gradient. the total current flow is the addition of electron and hole current density(both for drift and diffusion) -norhaslin nordin- -2006688448-
48 comments:
askum...chapter3 more difficult from chapter2..but interesting because we know carrier motion..
Assalamualaikum.
To find the total carrier current, we must sum the carrier diffusion current density and drift current density.
Wassalam.
=Nur Suhaili Abd Samad=
=EEB4B=
Salam....
The different between drift and diffusion is based on mobility and diffusion coefficient....
Beside that, drift is carrier motion due to electric field while diffusion is due to concentration gradient...
NUR HARDHILA BINTI OTHMAN
EEB4B
2006688089
assalamualaikum..
we can relate drift and diffusion with the mobility and different coefficient..
we also can get the total carrier current with the sum of diffusion current density and drift current density..
this two motion can be relate in an equation which can be use to answers question about drift and diffusion..
MOHD HAZIQ
2006685488
EEB4A
hi...
The equation that can relate between drift and diffusion is drift current density and diffusion current density,respectively...
We also can find the total current density by adding this two formula...
Suhaida Mohamad Noor
EEB4B
=)
Assalamua'laikum wbt.
The equation that relate between drift and diffusion is the TOTAL CURRENT.
We can find the total current by adding the drift current (for holes and electrons) and diffusion current (for holes and electrons).
liyana sa'ari
EEB4B
assalamualaikum,
the total current is the sum of the current density for diffusion current and also the current density of drift current.
-nordhuha mohd yunus-
-2006687889-
-eeb4a-
Assalamualaikum...
Drift and diffusion are differ in the mobility and coefficient.
For the total carrier current with the sum of diffusion current density and drift current density.
[Shahrul Akhmar bin Sharifuddin]
[EEB4A]
Asslmkm...
We must sum the carrier diffusion current density and drift current density to find the total carrier current.The formula is
Jtotal=Jp(drift)+Jn(drift)+Jp(diff)+Jn(diff).Thats all,tq...
nurkhadijah bt zainol
eeb4b
2006687068
Assalamualaikum
the related equation between drift and diffusion is the total current carier where is
Jtotal=Jn(drift)+Jn(diff)+Jp(drift)+Jp(diff)
Mohd Syafiq b Md Salleh
2006686093
EEB4A
total current density is the sum of total current density for drift and total current density for diffusion.
Jtotal= Jp(drift)+Jp(diff)+Jn(drift)+Jn(diff).
nur atharah bt kamarzaman
eeb4a
the current density for drift and diffusion are different but then we can get the total current density by adding both value
-nurfadzilah-
-eeb4b-
All the diffusion and drift current density must be sum together to get then total current density..
the eq is:
Jtotal=Jp(drift)+Jn(drift)+Jp(diff)+Jn(diff)
-mohd sobri ibrahim
-2006685703
-eeb4a
Assalamualaikum...
Drift is carrier motion due to electric field but,diffusion is due to concentration gradient...
Norhaliyati
EEB4A
Assalammualaikum...
Jtotal=Jp(drift)+Jn(drift)+Jp(diff)+Jn(diff)
>> from the equation,we can conclude that drift was related to diffution.. its also depent to electric field.
haloo..
the equation than can related drift and diffustion are;
Jtotal=Jn(drift)+Jn(diff)+Jp(drift)+Jp(diff)
-mohd rashdan ramli-
-eeb4a-
salam...
according to the book,the equation that can relate both drift and diffusion is;
Jtotal=Jn(drift)+Jn(diff)+Jp(drift)+Jp(diff)
-mohd safuan b. ali aspar-
-eeb4a-
assalamualaikum
the equation that can related drift and diffusion is the total current carrier density.the equation is:
Jtotal=Jn(drift)+Jn(diff)+Jp(drift)+Jp(diff)
-mohd ridhuan bin mohamed
-2006685040
-eeb4a
Assalamualaikum..
The equation that can relate between drift and diffusion is the total current where the total current is the summation of drift current density and diffusion current density.
-Nur Amalina Binti Muhamad-
-2006200184-
-EEB4A-
equation of total current density!
Mohd Hasbullah Bin Hussin
EEB4A
assalamualaikum...... The equation that can relate between drift and diffusion is the current.
the total current is adding the drift current (for holes and electrons) and diffusion current (for holes and electrons).
Jtotal=Jn(drift)+Jn(diff)+Jp(drift)+Jp(diff)
-siti aisah-
EEB4A
2006133449
the equation that relate with the drift and diffusion is current density,total current density,conductivity,resistivity.to get all the relation above we must first determine the mobility of an electron and holes ( majority nor minority )
*ReGaRds
-Mohd Hafeez-
-2006686054-
-EEB4A-
Assalamualaikum,
the equation that relate between Drift & Diffusion is the current... for more exact... total current... where :
Jtotal = Jn(drift) + Jn(diff) + Jp(drift) + Jp(diff)
For pseudo equation:
Total Carrier Current = Carrier Diffusion Current Density + Drift Current Density
Mohd Ameer Yuslan Bin Razmi
2006685902
EEB4B
assalamualaikum...
The total current density is the sum of the carrier for drift and diffusion which is:
J(total)=Jp(diff)+Jp(drift)+Jn(diff)+Jn(drift)
SALAM…
Jtotal = Jp(drift) + Jp(diff) + Jn(drift) + Jn(diff)
= qnn + qpp + q Dndn/dx - q Dpdp/dx
Where in p-type material, n and Dn are the minority carrier mobilities and diffusion coefficient, p and Dp are their majority carrier counterpart. The opposite is the case for n-type material.
\\ Nurul Mahzuzah Binti Masduki\\
\\2006687825\\
\\EEB4B\\
assalamualaikum...
simple but smart..
Jtotal = Jn(drift) + Jn(diff) +
Jp(drift) + Jp(diff)
salam
The different between drift and diffusion is based on mobility and diffusion coefficient.
For the total carrier current with the sum of diffusion current density and drift current density.
-nor hidayat bt abd ghani-
-2006687123-
-eeb4a-
The equation that can relate between drift and diffusion is total current density. total current density is the summation of drift and diffusion current density.
-norain bt sahari-
-2006687800-
-eeb4a-
salam
the different between driff and diffusion can be relate by this formula:
total = Jn(drift) + Jn(diff) +
Jp(drift) + Jp(diff)
Salam..
to relate between diffusion and drift,the equation below is used
Total carrier current:
Jn(total) =Jn(diff)+Jn(drift)
Jp(total) =Jp(diff) + Jp(drift)
Afiqah Yaacob
EEB4B
The equation that can related drift and diffusion is total carrier current.the total carrier current equal to the sum of diffusion current density and drift current density.
2006688231
EEB4A
current flow in semiconductors is combination of drift and diffussion.
Jtotal=Jp(drift)+Jn(drift)+Jp(diff)+Jn(diff).
aidanordin-4b
we can relate drift and diffusion with the mobility and different coefficient..
we also can get the total carrier current with the sum of diffusion current density and drift current density..
this two motion can be relate in an equation which can be use to answers question about drift and diffusion..
Jtotal=Jp(drift)+Jn(drift)+Jp(diff)+Jn(diff).
siti hajjar ibrahim
EEB4B
Dn/μn= (kT)/q or Dp/μp= (kT)/q
From the equation, the diffusion coefficients which is due diffusion are proportional to the mobilities cause by drift.
hasnoor khuzairah binti hasim
2006688105
eeb4b
The formula of the diffusion and drift is is not very same.... To know the total of the current, we must to add the drift and diffusion current that is
J(total)= J(diffusion current for hole and electron) + J(drift current for hole and electron)...
salam........
For me drift is due to electric field, while diffusion depends to concentration...
-nurul arina abdull razak-
-2006688096-
The equation that can relate between drift and diffusion is the total current equation.
J = Jn(drift) + Jn(diff) + Jp(drift) + Jp(diff)
the equation that can relate between drift and diffusion by summing the diffusion current density with the drift current density.
-Nur Liyana Ridzuan
-2006687969
-EEB4B
The related equation is :
Jtotal= Jp(drift)+Jp(diff)+Jn(drift)+Jn(diff).
fathiyah
EEB 4B
salam..
the equation that can relate between drif and diffusion is:
Jtotal=Jn(drift)+Jn(diff)+Jp(drift)+Jp(diff)
-->nurhidayahmuhammadhanif<--
----------->EEB4B<-----------
salam....
in general.current flow is by combination of drift and diffusion.which mean current flows by carrier drift in electric field and by diffusion in the presence of a carrier concentration gradient. the total current flow is the addition of electron and hole current density(both for drift and diffusion)
-norhaslin nordin-
-2006688448-
salam...
the equation that relate drift and diffusion is the total current where the equation is as follow:
Jtotal= Jp(drift)+Jp(diff)+Jn(drift)+Jn(diff).
~MiMiEEB4B~
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