{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["11(1)"],"submitter":["Sun R"],"pubmed_abstract":["Currently, a major challenge for metal-halide perovskite light emitting diodes (LEDs) is to achieve stable and efficient white light emission due to halide ion segregation. Herein, we report a promising method to fabricate white perovskite LEDs using lanthanide (Ln<sup>3+</sup>) ions doped CsPbCl<sub>3</sub> perovskite nanocrystals (PeNCs). First, K<sup>+</sup> ions are doped into the lattice to tune the perovskite bandgap by partially substituting Cs<sup>+</sup> ions, which are well matched to the transition energy of some Ln<sup>3+</sup> ions from the ground state to the excited state, thereby greatly improving the Förster energy transfer efficiency from excitons to Ln<sup>3+</sup> ions. Then, creatine phosphate (CP), a phospholipid widely found in organisms, serves as a tightly binding surface-capping multi-functional ligand which regulates the film formation and enhances the optical and electrical properties of PeNC film. Consequently, the Eu<sup>3+</sup> doped PeNCs based-white LEDs show a peak luminance of 1678 cd m<sup>-2</sup> and a maximum external quantum efficiency (EQE) of 5.4%, demonstrating excellent performance among existing white PeNC LEDs from a single chip. Furthermore, the method of bandgap modulation and the defect passivation were generalized to other Ln<sup>3+</sup> ions doped perovskite LEDs and successfully obtained improved electroluminescence (EL). This work demonstrates the comprehensive and universal strategies in the realization of highly efficient and stable white LEDs via single-component Ln<sup>3+</sup> ions doped PeNCs, which provides an optimal solution for the development of low-cost and simple white perovskite LEDs."],"journal":["Light, science & applications"],"pagination":["340"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9722690"],"repository":["biostudies-literature"],"pubmed_title":["Efficient single-component white light emitting diodes enabled by lanthanide ions doped lead halide perovskites via controlling Forster energy transfer and specific defect clearance."],"pmcid":["PMC9722690"],"pubmed_authors":["Ding Y","Sun R","Wang T","Zhuang X","Ding N","Zhou D","Liu S","Wang Y","Song H","Xu W"],"additional_accession":[]},"is_claimable":false,"name":"Efficient single-component white light emitting diodes enabled by lanthanide ions doped lead halide perovskites via controlling Forster energy transfer and specific defect clearance.","description":"Currently, a major challenge for metal-halide perovskite light emitting diodes (LEDs) is to achieve stable and efficient white light emission due to halide ion segregation. Herein, we report a promising method to fabricate white perovskite LEDs using lanthanide (Ln<sup>3+</sup>) ions doped CsPbCl<sub>3</sub> perovskite nanocrystals (PeNCs). First, K<sup>+</sup> ions are doped into the lattice to tune the perovskite bandgap by partially substituting Cs<sup>+</sup> ions, which are well matched to the transition energy of some Ln<sup>3+</sup> ions from the ground state to the excited state, thereby greatly improving the Förster energy transfer efficiency from excitons to Ln<sup>3+</sup> ions. Then, creatine phosphate (CP), a phospholipid widely found in organisms, serves as a tightly binding surface-capping multi-functional ligand which regulates the film formation and enhances the optical and electrical properties of PeNC film. Consequently, the Eu<sup>3+</sup> doped PeNCs based-white LEDs show a peak luminance of 1678 cd m<sup>-2</sup> and a maximum external quantum efficiency (EQE) of 5.4%, demonstrating excellent performance among existing white PeNC LEDs from a single chip. Furthermore, the method of bandgap modulation and the defect passivation were generalized to other Ln<sup>3+</sup> ions doped perovskite LEDs and successfully obtained improved electroluminescence (EL). This work demonstrates the comprehensive and universal strategies in the realization of highly efficient and stable white LEDs via single-component Ln<sup>3+</sup> ions doped PeNCs, which provides an optimal solution for the development of low-cost and simple white perovskite LEDs.","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Dec","modification":"2025-04-05T11:49:15.138Z","creation":"2025-04-05T11:49:15.138Z"},"accession":"S-EPMC9722690","cross_references":{"pubmed":["36470864"],"doi":["10.1038/s41377-022-01027-9"]}}