Bioinspired scaffolds that sequester lead ions in physically damaged high efficiency perovskite solar cells
Muhamad Z. Mokhtar, Jiangyu He, Menghan Li, Qian Chen, Chun-Ren Ke, David J. Lewis, Andrew G. Thomas, Ben F. Spencer, Saif A. Haque, Brian R. Saunders
Abstract
Hydroxyapatite nanoparticles (HAP NPs) are blended with TiO2 NPs to prepare mixed mesoporous scaffolds which are used to prepare high efficiency perovskite solar cells (PSCs) with a best power conversion efficiency (PCE) of 20.98%. HAP not only increases the PCE but also limits the concentration of Pb released in water from intentionally broken PSCs by ion sequestration thereby potentially offering a promising in-device fail-safe system.
Topics & Concepts
Perovskite (structure)Mesoporous materialScaffoldNanoparticleEnergy conversion efficiencyChemical engineeringMaterials scienceIonNanotechnologyLead (geology)ChemistryCatalysisOptoelectronicsOrganic chemistryBiomedical engineeringGeologyEngineeringMedicineGeomorphologyPerovskite Materials and ApplicationsConducting polymers and applicationsChalcogenide Semiconductor Thin Films