We show that thin film CdTe solar cells exhibit the phenomenon of threshold
switching similar to that in phase change and resistive memory. It creates a
conductive filament (shunt) through the solar cell reaching the buried
electrode, such as the transparent conductive oxide (TCO) in CdTe based
photovoltaics (PV). While in the existing PV the buried electrode was routinely
contacted via laser scribe filled metals, our work paves a way to an
alternative technology of no-scribe PV.
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