As the global solar industry accelerates toward terawatt-scale manufacturing, it faces a critical bottleneck: silver. Today’s high-efficiency silicon solar cells rely on screen-printed silver contacts, and in 2025 alone, photovoltaic manufacturing consumed roughly 25% of global silver supply, highlighting the material risk of scaling solar without redesigning how critical resources are used.    With the support of the Australian Centre for Advanced Photovoltaics,  Associate P

ACAP supported research by UNSW’s Associate Professor Brett Hallam  and Dr Yuchao Zhang has addressed one of the big bottlenecks in the...