Tweet
Hi Everyone:
I am a undergraduate student I have a question from my course solar energy. I needed help in the following question . The question is:
Q. Calculate the thicknesses of silver and silicon that will absorb 95% of 600 nm light that enters the surface. Do the results have any implications for silicon based solar cells?
I am using the formula I=Io * exp(-alpha*x)
where I=intensity of light (I)at any distance (x) into the material
and Io is the light intensity at the top surface
I calculated absorption coefficient(alpha) for silicon from the website http://www.cleanroom.byu.edu/OpticalCalc.phtml. and kept 'I' as 0.05 and Io as 1. and calculated x which came out to be 5.74 micrometer but I am not sure about the calculation and typically the solar cell has a thickness of 200 to 500 micrometer.
Please let me know if I am right or wrong.
I am a undergraduate student I have a question from my course solar energy. I needed help in the following question . The question is:
Q. Calculate the thicknesses of silver and silicon that will absorb 95% of 600 nm light that enters the surface. Do the results have any implications for silicon based solar cells?
I am using the formula I=Io * exp(-alpha*x)
where I=intensity of light (I)at any distance (x) into the material
and Io is the light intensity at the top surface
I calculated absorption coefficient(alpha) for silicon from the website http://www.cleanroom.byu.edu/OpticalCalc.phtml. and kept 'I' as 0.05 and Io as 1. and calculated x which came out to be 5.74 micrometer but I am not sure about the calculation and typically the solar cell has a thickness of 200 to 500 micrometer.
Please let me know if I am right or wrong.
Comment