All-Perovskite Tandems Enabled by Surface Anchoring of Long-Chain Amphiphilic Ligands

Oleic acid treatment of Pb–Sn perovskite surfaces coordinates Sn²⁺ sites and reduces interfacial recombination, lowering the V_OC deficit to 0.34 V and enabling certified 26.4% all-perovskite tandem solar cells with a V_OC of 2.21 V.

Access paper here

Recommended citation: Maxwell, A.; Chen, H.; Grater, L.; Li, C.; Teale, S.; Wang, J.; Zeng, L.; Wang, Z.; Park, S. M.; Vafaie, M.; Sidhik, S.; Metcalf, I. W.; Liu, Y.; Mohite, A. D.; Chen, B.^*; Sargent, E. H.^* All-Perovskite Tandems Enabled by Surface Anchoring of Long-Chain Amphiphilic Ligands. ACS Energy Lett. 2024, 9 (2), 520–527.
Download Paper