I used fsolve function (advised by Mischa Kim) to solve the diode equation and it worked (with small modification on (q/nkT).

fun = @(I) Il – Io * exp((V + I*R)/(n*kT_q)) – (V + I*R)/S – I;

Now I need to do a fitting using the same equation but this time I need Matlab to iterate the values for:

Il , Io, R, n, S,

in order to solve I which will give me the best fit against the experimental I (Iexp) where V is the independent variable. I guess I will need the least square function for that but first how do I ask Matlab to do the iteration and eventually solve the I?

Thank you very much for your help.

RosemarieI used fsolve function (advised by Mischa Kim) to solve the diode equation and it worked (with small modification on (q/nkT).

fun = @(I) Il – Io * exp((V + I*R)/(n*kT_q)) – (V + I*R)/S – I;

Now I need to do a fitting using the same equation but this time I need Matlab to iterate the values for:

Il , Io, R, n, S,

in order to solve I which will give me the best fit against the experimental I (Iexp) where V is the independent variable. I guess I will need the least square function for that but first how do I ask Matlab to do the iteration and eventually solve the I?

Thank you very much for your help.

Rosemarie I used fsolve function (advised by Mischa Kim) to solve the diode equation and it worked (with small modification on (q/nkT).

fun = @(I) Il – Io * exp((V + I*R)/(n*kT_q)) – (V + I*R)/S – I;

Now I need to do a fitting using the same equation but this time I need Matlab to iterate the values for:

Il , Io, R, n, S,

in order to solve I which will give me the best fit against the experimental I (Iexp) where V is the independent variable. I guess I will need the least square function for that but first how do I ask Matlab to do the iteration and eventually solve the I?

Thank you very much for your help.

Rosemarie diode equation MATLAB Answers — New Questions

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