Influence of Bulky Organo‐Ammonium Halide Additive Choice on the Flexibility and Efficiency of Perovskite Light‐Emitting Devices
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DOI: 10.1002/adfm.201802060
Abstract: Perovskite light-emitting diodes (LEDs) require small grain sizes to spatially confine charge carriers for efficient radiative recombination. As grain size decreases, passivation of surface defects becomes increasingly important. Additionally, polycrystalline perovskite films are highly brittle… read more here.
Keywords: perovskite light; ammonium halide; bulky organo; organo ammonium ... See more keywords
Efficient Blue Perovskite Light‐Emitting Diodes Boosted by 2D/3D Energy Cascade Channels
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DOI: 10.1002/adfm.202001732
Abstract: Lead halide perovskite, as an emerging semiconductor, provides a fire‐new opportunity for high‐definition display and solid‐state lighting. Earthshaking improvements are implemented in green, red, and near‐infrared perovskite light‐emitting diodes (PeLEDs). However, blue PeLEDs are still… read more here.
Keywords: energy; energy cascade; perovskite light; light emitting ... See more keywords
Suppressing Ion Migration Enables Stable Perovskite Light‐Emitting Diodes with All‐Inorganic Strategy
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DOI: 10.1002/adfm.202001834
Abstract: Stability issue is one of the major concerns that limit emergent perovskite light-emitting diodes (PeLEDs) techniques. Generally, ion migration is considered as the most important origin of PeLEDs degradation. In this work, an all-inorganic device… read more here.
Keywords: ion migration; emitting diodes; light emitting; perovskite light ... See more keywords
Highly Efficient Spectrally Stable Red Perovskite Light-Emitting Diodes.
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DOI: 10.1002/adma.201707093
Abstract: Perovskite light-emitting diodes (LEDs) have recently attracted great research interest for their narrow emissions and solution processability. Remarkable progress has been achieved in green perovskite LEDs in recent years, but not blue or red ones.… read more here.
Keywords: perovskite light; red perovskite; emitting diodes; light emitting ... See more keywords
Conjugated Polyelectrolytes as Multifunctional Passivating and Hole-Transporting Layers for Efficient Perovskite Light-Emitting Diodes.
Sign Up to like & getrecommendations! Published in 2019 at "Advanced materials"
DOI: 10.1002/adma.201900067
Abstract: Metal halide perovskites (MHPs) have attracted significant attention as light-emitting materials owing to their high color purities and tunabilities. A key issue in perovskite light-emitting diodes (PeLEDs) is the fabrication of an optimal charge transport… read more here.
Keywords: perovskite light; interfacial defects; conjugated polyelectrolytes; emitting diodes ... See more keywords
Thermal Management Enables Bright and Stable Perovskite Light-Emitting Diodes.
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DOI: 10.1002/adma.202000752
Abstract: The performance of lead-halide perovskite light-emitting diodes (LEDs) has increased rapidly in recent years. However, most reports feature devices operated at relatively small current densities ( read more here.
Keywords: perovskite light; management; emitting diodes; light emitting ... See more keywords
Perovskite Light-Emitting Diodes with EQE Exceeding 28% through a Synergetic Dual-Additive Strategy for Defect Passivation and Nanostructure Regulation.
Sign Up to like & getrecommendations! Published in 2021 at "Advanced materials"
DOI: 10.1002/adma.202103268
Abstract: Quasi-2D perovskites have long been considered to have favorable "energy funnel/cascade" structures and excellent optical properties compared with their 3D counterparts. However, most quasi-2D perovskite light-emitting diodes (PeLEDs) exhibit high external quantum efficiency (EQE) but… read more here.
Keywords: dual additive; perovskite light; synergetic dual; emitting diodes ... See more keywords
Red Perovskite Light‐Emitting Diodes with Efficiency Exceeding 25% Realized by Co‐Spacer Cations
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DOI: 10.1002/adma.202204460
Abstract: Perovskite light‐emitting diodes (PeLEDs) have received great attention in recent years due to their narrow emission bandwidth and tunable emission spectrum. Efficient red emission is one of most important parts for lighting and displays. Quasi‐2D… read more here.
Keywords: emitting diodes; emission; efficiency; light emitting ... See more keywords
Overcoming the Outcoupling Limit of Perovskite Light‐Emitting Diodes with Artificially Formed Nanostructures
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DOI: 10.1002/adma.202207180
Abstract: The external quantum efficiency (EQE) of state‐of‐the‐art planar‐structure perovskite light‐emitting diodes (PeLEDs) is mainly limited by the outcoupling efficiency, which is around 20% and decreases significantly with the perovskite thickness. Here, an approach to artificially… read more here.
Keywords: limit; emitting diodes; outcoupling limit; light emitting ... See more keywords
Vacuum‐Deposited Inorganic Perovskite Light‐Emitting Diodes with External Quantum Efficiency Exceeding 10% via Composition and Crystallinity Manipulation of Emission Layer under High Vacuum
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DOI: 10.1002/advs.202206076
Abstract: Although vacuum‐deposited metal halide perovskite light‐emitting diodes (PeLEDs) have great promise for use in large‐area high‐color‐gamut displays, the efficiency of vacuum‐sublimed PeLEDs currently lags that of solution‐processed counterparts. In this study, highly efficient vacuum‐deposited PeLEDs… read more here.
Keywords: vacuum; vacuum deposited; emitting diodes; light emitting ... See more keywords
Oxide Semiconductor Phototransistor with Organolead Trihalide Perovskite Light Absorber
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DOI: 10.1002/aelm.201600325
Abstract: A hybrid phototransistor is developed with solution-processed organolead trihalide perovskite (MAPbI3) capping indium gallium zinc oxide (IGZO), which well fuses the properties of the two materials in sensitive photodetecting and high-mobility charge transporting, respectively. The… read more here.
Keywords: perovskite light; organolead trihalide; trihalide perovskite; oxide semiconductor ... See more keywords