The aim of my research is to create recyclable structures for different solar technologies to 1) prevent release of toxic chemicals to environment and 2) enable retrieval of critical and rare materials from degraded devices. The recycling of silicon solar technologies struggles with commercial viability and emerging high performance, low-cost technologies such as perovskite solar cells contain, e.g. lead. I develop insight on materials side to guide research towards sustainable solar cell structures as well as build demonstrations of solar cell eco-designs. Besides technical feasibility, it is pivotal to reach economic profitability of recycling to ensure maximum global impact.