ArticleScience advances2024
Efficient pure-red perovskite light-emitting diodes with strong passivation via ultrasmall-sized molecules.
Article in Science advances, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Mitigating surface structural disorder for high-performance near-infrared quantum dot light-emitting diodes.Science advances · 2026Article
- Suppressing electron-phonon coupling in perovskite nanoplatelets for efficient pure-red light-emitting diodes with narrow spectral emission.Nature communications · 2026Article
- Exceeding 30% Efficiency of Red Perovskite Quantum Dot Light-Emitting Diodes via Interparticle Energy Dissipation Suppression.Nano-micro letters · 2026Article
- Scalable Manufacturing and Precise Patterning of Perovskites for Light-Emitting Diodes.Nano-micro letters · 2026Review
- Molecularly tailored dual-interface passivation via solvent-free rub-on transfer for efficient and stable perovskite LEDs.Science advances · 2025Article
- Lattice-matched molecular-anchor design for high-performance perovskite quantum dot light-emitting diodes.Nature communications · 2025Article
- Surface Reconstruction in Quasi-2D Perovskite Films Treated with Cesium Halide Nanocrystals: Halide Exchange or Phase Transformation.Small science · 2025Article
- Chiral Perovskite Single Crystals: Toward Promising Design and Application.Materials (Basel, Switzerland) · 2025Review
- Molecule-induced ripening control in perovskite quantum dots for efficient and stable light-emitting diodes.Science advances · 2025Article
- Article
- Ultralow voltage-driven efficient and stable perovskite light-emitting diodes.Science advances · 2024Article
Corrections and comments
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Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Perovskite light-emitting diodes (PeLEDs) have attracted great attention in recent years; however, the halogen vacancy defects in perovskite notably hamper the development of high-efficiency devices. Previously, large-sized passivation agents have been usually used, while the effect of defect passivation is limited due to the weak bonding or the large space steric hindrance. Here, we predict that the ultrasmall-sized formate (Fa) and acetate (Ac) have more efficient passivation ability because of the stronger binding with the perovskite, as demonstrated by density functional theory calculation. We introduce ultrasmall-sized cesium salts (CsFa/CsAc) into buried interface, which can also diffuse into the bulk, resulting in both buried interface and bulk passivation. In addition, the improved perovskite growth has been found due to the enhanced hydrophily after introducing CsFa/CsAc as additive. According to these advantages, a pure-red PeLED with 24.2% efficiency at 639 nm has been achieved.
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Registered trials
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