Publication | Closed Access
Improved efficiency and stability of Pb–Sn binary perovskite solar cells by Cs substitution
171
Citations
29
References
2016
Year
Materials ScienceMaterials EngineeringElectrical EngineeringEngineeringPerovskite Solar CellCs SubstitutionCrystal Growth TechnologySolar Cell StructuresApplied PhysicsPerovskite MaterialsHalide PerovskitesAmbient StabilitySolar CellsLead-free PerovskitesPhotovoltaicsPb–sn Alloy PerovskitesMicrostructureSolar Cell Materials
Cs substitution was applied to Pb–Sn alloy perovskites to retard the fast crystallization rate. As a result, the derived device performance and stability can be effectively improved. The representative MA<sub>0.9</sub>Cs<sub>0.1</sub>Pb<sub>0.5</sub>Sn<sub>0.5</sub>I<sub>3</sub> device can achieve a high efficiency of 10.07% with better thermal and ambient stability than the pristine MAPb<sub>0.5</sub>Sn<sub>0.5</sub>I<sub>3</sub> device (6.36%).
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