Theoretical Treatment of the Vertical Multijunction Solar Cell.
Rept. for 1 Jul 71-1 Mar 72,
AIR FORCE AERO PROPULSION LAB WRIGHT-PATTERSON AFB OHIO
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A brief theoretical treatment of the vertical multijunction solar cell is presented. The cell geometry considered was 2 cm x 2 cm x 250 microns. Solutions for the minority carrier diffusion equations were obtained so as to derive the light generated current per unit wavelength spectral response and total light generated current. The spectral response calculations revealed that enhanced carrier collection is predicted in the red portion of the sunlight spectrum. The total light generated current was found to increase asymptotically to a limit of nominally 190 milliamperes for increasing numbers of junctions. Author
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