The successful demonstration of high performance CdTe solar cells onto space qualified ultra-thin (100 μm) glass (UTG) has enabled intense proton radiation tests, simulating the effects of irradiation in space, to be carried out under laboratory conditions [1]. Previous reports of proton irradiation have not had the benefit of the cerium doped radiation hardened glass substrates with inevitable optical loss under higher proton fluences [2]. For the first time, it is possible to model the EQE, J_(sc), V_(oc) and FF of solar cells irradiated with different proton fluences without the parasitic effects of transmission loss in the glass superstrate.
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