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Effect of Bidentate Ligand Additive in Tin Perovskite Solar Cells
Tin- perovskite solar cell (Sn-PSC) is limited by their poor stability arising from facile tin oxidation and uncontrolled film growth. Here, we introduced a multifunctional bidentate ligand, formohydrazide (FHZ) as an additive into FASnI3 perovskite film. This additive is found to be effective for the control of Sn-oxidation and forms pin-hole free film morphology. The Sn-PSCs with FHZ additive enhanced the device efficiency from 9.93% (for control Sn-HaP) to 13.14 % (for device with FHZ additive) with higher reproducibility and superior device stability. The device analysis suggests that the hydrazide additive significantly passivates the bulk and surface defect in the Sn-PSCs. This report gives insights into the film growth properties, device photo-physics, and defect analysis correlating with device performance and device stability.
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- 11/06/2023
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- © 2023 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
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2023-PVSC-Abstract-SnPSCs.pdf | 578 KB | MDR Open |
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Effect_of_Bidentate_Ligand_Additive_in_Tin_Perovskite_Solar_Cells.pdf | 651 KB | MDR Open |
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