{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["13(1)"],"submitter":["Liu Y"],"pubmed_abstract":["Formamidinium lead iodide (FAPbI<sub>3</sub>) perovskites are promising emitters for near-infrared light-emitting diodes. However, their performance is still limited by defect-assisted nonradiative recombination and band offset-induced carrier aggregation at the interface. Herein, we introduce a couple of cadmium salts with acetate or halide anion into the FAPbI<sub>3</sub> perovskite precursors to synergistically passivate the material defects and optimize the device band structure. Particularly, the perovskite analogs, containing zero-dimensional formamidinium cadmium iodide, one-dimensional δ-FAPbI<sub>3</sub>, two-dimensional FA<sub>2</sub>FA<sub>n-1</sub>Pb<sub>n</sub>I<sub>3n+1</sub>, and three-dimensional α-FAPbI<sub>3</sub>, can be obtained in one pot and play a pivotal and positive role in energy transfer in the formamidinium iodide-rich lead-based perovskite films. As a result, the near-infrared FAPbI<sub>3</sub>-based devices deliver a maximum external quantum efficiency of 24.1% together with substantially improved operational stability. Combining our findings on defect passivation and energy transfer, we also achieve near-infrared light communication with device twins of light emitting and unprecedented self-driven detection."],"journal":["Nature communications"],"pagination":["7425"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9718757"],"repository":["biostudies-literature"],"pubmed_title":["Synergistic passivation and stepped-dimensional perovskite analogs enable high-efficiency near-infrared light-emitting diodes."],"pmcid":["PMC9718757"],"pubmed_authors":["Hu S","Wang C","Fang G","Hu X","Cong H","Wang J","Liu Y","Ke W","Gui P","Wang S","Dong K","Jia S","Wang T","Li G","Li J","Chen L","Tao C","Li P","Xiao M","Huang W","Cao Y","Gao Z","Liu C","Ye F","Yao F"],"additional_accession":[]},"is_claimable":false,"name":"Synergistic passivation and stepped-dimensional perovskite analogs enable high-efficiency near-infrared light-emitting diodes.","description":"Formamidinium lead iodide (FAPbI<sub>3</sub>) perovskites are promising emitters for near-infrared light-emitting diodes. However, their performance is still limited by defect-assisted nonradiative recombination and band offset-induced carrier aggregation at the interface. Herein, we introduce a couple of cadmium salts with acetate or halide anion into the FAPbI<sub>3</sub> perovskite precursors to synergistically passivate the material defects and optimize the device band structure. Particularly, the perovskite analogs, containing zero-dimensional formamidinium cadmium iodide, one-dimensional δ-FAPbI<sub>3</sub>, two-dimensional FA<sub>2</sub>FA<sub>n-1</sub>Pb<sub>n</sub>I<sub>3n+1</sub>, and three-dimensional α-FAPbI<sub>3</sub>, can be obtained in one pot and play a pivotal and positive role in energy transfer in the formamidinium iodide-rich lead-based perovskite films. As a result, the near-infrared FAPbI<sub>3</sub>-based devices deliver a maximum external quantum efficiency of 24.1% together with substantially improved operational stability. Combining our findings on defect passivation and energy transfer, we also achieve near-infrared light communication with device twins of light emitting and unprecedented self-driven detection.","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Dec","modification":"2026-05-29T19:00:54.377Z","creation":"2025-04-07T06:22:17.999Z"},"accession":"S-EPMC9718757","cross_references":{"pubmed":["36460647"],"doi":["10.1038/s41467-022-35218-0"]}}