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We introduce a novel hyperspectral laser beam induced current (LBIC) system that uses a supercontinuum laser that can be tuned from 400nm – 1200nm with diffracted limited spot size. The solar cell is light biased while simultaneously being illuminated by a chopped laser beam at a given wavelength. Current-voltage measurements performed by measuring the current perturbation due to the laser using a...
We present laser-doped interdigitated back-contacted solar cells with a record efficiency $\bm{\eta}$ = 22.0%. The high versatility and spatial resolution of our laser doping process enable local n-type and p-type doping with a precision below 30 $\mu \hbox{m}$ and avoid any masking for doping. Nevertheless, the presented solar cells use photolithography (masking) to define the contact area and...
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