UNSW develops PV panel recycling method that recovers cell metals for upcycling

UNSW researchers were able to recover silicon from end of life solar PV panels pure enough for re-use in silicon carbide-based devices. Their novel multi-step method which includes thermal and chemical processes, also recovers silver. A team from Australia's University of New South Wales (UNSW) in Sydney reported being able to recover silicon, silver and tin from PV cell layers. The method recovered the majority of silver (Ag) (70 wt%) and the processed silicon (Si) exceeded 99. 7 wt% purity. The method is described in "Microrecycling of waste solar cells via an in-situ fluorine-generating thermal ...

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