ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2024
Charge Injection and Auger Recombination Modulation for Efficient and Stable Quasi-2D Perovskite Light-Emitting Diodes.
Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 21 citations in OpenAlex.
- Charge-Carrier Behavior and Molecular Interface Engineering in Perovskite Light-Emitting Diodes.Nano-micro letters · 2026Review
- Synergistic Effects of Additive Engineering in Enhancing the Performance of Sn-Pb Perovskite Thin-Film Transistors and Derived Logic Circuits.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Exciton Dynamics in Layered Halide Perovskite Light-Emitting Diodes.Advanced materials (Deerfield Beach, Fla.) · 2025Review
- Efficient Spin-Light-Emitting Diodes With Tunable Red to Near-Infrared Emission at Room Temperature.Advanced materials (Deerfield Beach, Fla.) · 2025Article
- Highly bright perovskite light-emitting diodes enabled by retarded Auger recombination.Nature communications · 2025Article
- Charge Injection and Auger Recombination Modulation for Efficient and Stable Quasi-2D Perovskite Light-Emitting Diodes.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Article
Corrections and comments
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Authors and funding
13 authors at 4 institutions in 2 countries.
Funding
Abstract
The inefficient charge transport and large exciton binding energy of quasi-2D perovskites pose challenges to the emission efficiency and roll-off issues for perovskite light-emitting diodes (PeLEDs) despite excellent stability compared to 3D counterparts. Herein, alkyldiammonium cations with different molecular sizes, namely 1,4-butanediamine (BDA), 1,6-hexanediamine (HDA) and 1,8-octanediamine (ODA), are employed into quasi-2D perovskites, to simultaneously modulate the injection efficiency and recombination dynamics. The size increase of the bulky cation leads to increased excitonic recombination and also larger Auger recombination rate. Besides, the larger size assists the formation of randomly distributed 2D perovskite nanoplates, which results in less efficient injection and deteriorates the electroluminescent performance. Moderate exciton binding energy, suppressed 2D phases and balanced carrier injection of HDA-based PeLEDs contribute to a peak external quantum efficiency of 21.9%, among the highest in quasi-2D perovskite based near-infrared devices. Besides, the HDA-PeLED shows an ultralong operational half-lifetime T
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