Materials Today Energy, Год журнала: 2024, Номер unknown, С. 101752 - 101752
Опубликована: Ноя. 1, 2024
Язык: Английский
Materials Horizons, Год журнала: 2025, Номер 12(6), С. 1757 - 1795
Опубликована: Янв. 1, 2025
Noble metal-based oxide electrocatalysts are essential for the development of H 2 production technology by water electrolysis, and this review summarises recent research progress noble metal oxides in field electrolysis.
Язык: Английский
Процитировано
4
Advanced Energy Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 5, 2025
Abstract The complete phase transition from DMAPbI 3 and Cs 4 PbI 6 intermediates to the final CsPbI perovskite is pivotal for fabricating high‐quality inorganic films. In this study, reaction energy barrier between sought be reduced by increasing their surface energy, where a perfluorinated compound designed using DFT modeling saturate of effectively prevent crystalline growth. Consequently, smaller with ultrahigh react more energetically facilitate rapid conversion desired phase. It found that resultant shows improved crystallinity morphology, as demonstrated suppressed non‐radiative recombination prolonged carrier lifetimes. As result, optimized solar cells (PSCs) achieve power efficiency (PCE) over 20%, along significantly light thermal stability. This work provides way regulate crystallization dynamics advanced quality perovskites.
Язык: Английский
Процитировано
3
Advanced Materials, Год журнала: 2025, Номер unknown
Опубликована: Фев. 19, 2025
Abstract Nanocrystalline perovskites have driven significant progress in metal halide perovskite light‐emitting diodes (PeLEDs) over the past decade by enabling spatial confinement of excitons. Consequently, three primary categories nanocrystalline emerged: nanoscale polycrystalline perovskites, quasi‐2D and nanocrystals. Each type has been developed to address specific challenges enhance efficiency stability PeLEDs. This review explores representative material design strategies for these correlating them with exciton recombination dynamics optical/electrical properties. Additionally, it summarizes trends decade, outlining four distinct phases development. Lastly, this addresses remaining proposes a potential further advance PeLED technology toward commercialization.
Язык: Английский
Процитировано
1
Nature Communications, Год журнала: 2024, Номер 15(1)
Опубликована: Дек. 30, 2024
Abstract Metal halide perovskites show promise for next-generation light-emitting diodes, particularly in the near-infrared range, where they outperform organic and quantum-dot counterparts. However, still fall short of costly III-V semiconductor devices, which achieve external quantum efficiencies above 30% with high brightness. Among several factors, controlling grain growth nanoscale morphology is crucial further enhancing device performance. This study presents a engineering methodology that combines solvent heterostructure construction to improve light outcoupling efficiency defect passivation. Solvent enables precise control over size distribution, increasing ~40%. Constructing 2D/3D heterostructures conjugated cation reduces densities accelerates radiative recombination. The resulting perovskite diodes peak 31.4% demonstrate maximum brightness 929 W sr −1 m −2 . These findings indicate have potential as cost-effective, high-performance sources practical applications.
Язык: Английский
Процитировано
3
ACS Applied Nano Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 14, 2025
Achieving pure blue emission of perovskite light-emitting diodes (PeLEDs) is great importance for fulfilling full-color display and lighting applications. However, achieving high-performance PeLEDs in bromide quasi-2D (Q2D) perovskites has always been a formidable challenge. Here, an interface engineering strategy proposed to regulate the light color device photoelectric performance simultaneously by employing (2-aminoethyl)phosphonic acid (AEP)-modified poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS). The AEP-PEDOT:PSS not only enhances wettability toward precursor but also coordinates with unsaturated Pb atoms, facilitating growth nanocrystals fewer defects. Thereby, shifted from sky-blue region higher PLQY was achieved. Additionally, incorporation AEP reduces conductivity PEDOT:PSS film, enabling more balanced charge transport device. Consequently, modification achieve external quantum efficiency (EQE) 5.2%, approximately 1.9 times that control Our findings may provide valuable insights helpful guidance development Q2D LEDs.
Язык: Английский
Процитировано
0
ACS Applied Electronic Materials, Год журнала: 2025, Номер unknown
Опубликована: Фев. 14, 2025
Tin (Sn)-based perovskite light-emitting diodes (PeLEDs) have garnered significant attention owing to their superior optoelectronic properties, affordable solution processing, and environmental friendliness. However, the properties of Sn-PeLEDs trail those lead (Pb) counterparts. The main obstacle is easy oxidation Sn2+ Sn4+ as well fast crystallization, leading poor film quality with many defects. Herein, a convenient effective interface engineering strategy reported fabricate (2-thiopheneethylamine)2SnI4 (TEA2SnI4) PeLEDs by introducing different peptides into PEDOT:PSS hole-transport layer (HTL). Benefiting from interaction between peptide molecules Sn-perovskite nuclei, crystallization dynamics are effectively adjusted, an improved morphology. At same time, multiple functional groups can suppress passivate Therefore, films luminescence efficiency obtained. further used for fabrication pure red enhanced performance. In particular, optimized devices based on Leu-Gly-Gly (LGG) achieve peak external quantum 0.5% brightness 136 cd m–2, which about 2 3 times larger, respectively, than reference device. This research offers general improve performance via engineering.
Язык: Английский
Процитировано
0
Chinese Journal of Lasers, Год журнала: 2025, Номер 52(5), С. 0501010 - 0501010
Опубликована: Янв. 1, 2025
Процитировано
0
Nano Letters, Год журнала: 2025, Номер unknown
Опубликована: Март 23, 2025
Halide perovskite light-emitting diodes (PeLEDs), considered as potential candidates for future displays, face significant limitations in their external quantum efficiency (EQE) due to an uncontrollable nucleation and crystallization process. Herein, a close-space inverted annealing (CSIA) strategy is developed achieve fast obtain more uniform film with larger crystal domains much lower defect centers. The increased surficial temperature quick solvent evaporation the CSIA method result formation of numerous large nuclei solvate intermediates at initial stage, which effectively guide growth into domains, facilitated by residual solvent. CSIA-processed PeLED achieves peak EQE 25.8%, among best values near-infrared devices. Moreover, it applicable perovskite-emitting layers different passivation agents. This straightforward approach highlights great opportunity boost performance commercialization optoelectronic
Язык: Английский
Процитировано
0
ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown
Опубликована: Май 29, 2025
Although perovskite emitters exhibit high electroluminescence quantum efficiency, the external efficiency (EQE) of light-emitting diodes (PeLEDs) remains constrained by refractive index contrast. This limitation is particularly pronounced in TE-PeLEDs, where severe optical losses arise from surface plasmon polarization (SPP) at interfaces two metal electrodes. Here, we introduce a plasmonic scheme that leverages bimetallic bottom electrode with superlattice pattern to simultaneously enhance SPP outcoupling and plasmon-enhanced fluorescence. The interplay reduced loss boosted spontaneous emission yields an EQE 14.7%, which highest reported value for blue top-emitting PeLED. Furthermore, reduction energy leads decrease device working temperature, thereby producing 0.57-fold enhancement operational lifetime. approach represents significant step toward bridging gap between research innovations industrial applications display technology.
Язык: Английский
Процитировано
0
Advanced Optical Materials, Год журнала: 2024, Номер unknown
Опубликована: Окт. 25, 2024
Abstract Among the most auspicious and efficient surface ligand candidates or additives to raise efficiency of perovskite light‐emitting diodes (PeLEDs) are amino acids (AAs), possessing a combination group carboxylic group. The AA molecules exhibit significant promise for coherent tailoring their molecular conformations yield remarkable advantages multi‐functional properties. This raises question that how PeLED devices can benefit greatly from small amount integrated in films. In order set up structure–property relationship, mysteries extraordinary improvement performance PeLEDs through AAs modification disclosed. Furthermore, there is critical discussion workable guidelines exploring with optimal conformations. Moreover, recent developments blue, green, red incorporating also highlighted detail. Lastly, suggestions future directions research as well logical construction functional potent more stable presented.
Язык: Английский
Процитировано
2