With the impressive advancement in perovskite based dual-junction solar cells over the past decade, perovskite based triple-junction solar cells are now getting more attention. However, this technology is relatively new and therefore several challenges need to be tackled to unlock its full potential.
A two-terminal multi-junction solar cell in general is subjected to current mismatch-induced reverse bias, potentially leading to breakdown of its limiting subcells. This can be more critical in triple-junction compared to the dual-junction solar cells as the limiting subcell might work at a higher reverse bias (sum of the voltages of the other two subcells). Since the perovskite solar cell is known to have a low breakdown voltage, it is necessary to study such effects at this early stage of development.
In this work, the possibility of junction breakdown during current–voltage measurements of perovskite/perovskite/silicon triple-junction solar cells through simulations and experimental demonstrations is investigated.
Check out the full paper here: https://onlinelibrary.wiley.com/doi/full/10.1002/solr.202400376
The Borchert Lab 