Journal of Solid State Chemistry, Journal Year: 2024, Volume and Issue: unknown, P. 125127 - 125127
Published: Dec. 1, 2024
Language: Английский
ACS Nano, Journal Year: 2025, Volume and Issue: unknown
Published: March 7, 2025
Light-emitting colloidal lead halide perovskite nanocrystals (PeNCs) are considered promising candidates for next-generation vivid displays. However, the operational stability of light-emitting diodes (LEDs) based on PeNCs is still lower than those polycrystalline films, which requires an understanding defect formation in PeNCs, both inside crystal lattice ("bulk") and at surface. Meanwhile, uncontrollable ion redistribution electrochemical reactions under LED operation can be severe, also related to bulk surface quality a well-designed device architecture boost carrier injection balance radiative recombination. In this review, we consider reconstruction by enhancing rigidity rationally selecting ligands. Degradation pathways applied voltage discussed, strategies avoid undesirable migration PeNC films. Subsequently, other critical issues hindering commercial application LEDs including toxicity Pb perovskites, scale-up deposition design active-matrix prototypes high-resolution modules.
Language: Английский
Citations
1
Chinese Journal of Structural Chemistry, Journal Year: 2024, Volume and Issue: 43(11), P. 100416 - 100416
Published: Aug. 14, 2024
Language: Английский
Citations
7
Small, Journal Year: 2024, Volume and Issue: unknown
Published: May 15, 2024
Abstract In the field of photocatalytic CO 2 reduction, quantum dot (QD) assemblies have emerged as promising candidate photocatalysts due to their superior light absorption and better substrate adsorption. However, poor contacts within QD lead low interfacial charge transfer efficiency, making suffer from unsatisfactory performance. Herein, a novel approach is presented involving construction strongly fused CdS (CdS gel) for reduction. The gel demonstrates outstanding performance methanation, achieving CH 4 generation rate ≈296 µmol g −1 h , with selectivity surpassing 76% an apparent yield (AQY) 1.4%. Further investigations reveal that robust fusion in these QDs not only boosts ability absorb visible but also significantly promotes separation. present work paves way utilizing realizing efficient reduction highlights critical role engineering photocatalysts.
Language: Английский
Citations
6
ACS Nano, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 23, 2024
The growing demands for X-ray imaging applications impose diverse and stringent requirements on advanced detectors. Among these, flexibility stands out as the most expected characteristic next-generation Flexible detectors can spatially conform to nonflat surfaces, substantially improving resolution, reducing exposure dosage, enabling extended application opportunities that are hardly achievable by conventional rigid flat-panel Over past years, indirect- direct-conversion flexible have made marvelous achievements. In particular, microscale nanoscale engineering technologies play a pivotal role in defining optical, electrical, mechanical properties of this Perspective, we spotlight recent landmark advancements from aspects micro/nano strategies, which broadly categorized into two prevailing modalities: materials-in-substrate materials-on-substrate. We also discuss existing challenges hindering development detectors, well prospective research mitigate these issues.
Language: Английский
Citations
5
Journal of the Taiwan Institute of Chemical Engineers, Journal Year: 2024, Volume and Issue: 165, P. 105717 - 105717
Published: Aug. 20, 2024
Language: Английский
Citations
4
Advanced Optical Materials, Journal Year: 2025, Volume and Issue: unknown
Published: April 7, 2025
Abstract Perovskite nanocrystals have positioned themselves at the forefront of next‐generation emitter applications due to their extraordinary optoelectronic properties, which include widely tunable narrow emission spectra and low‐cost syntheses. However, stability issues halide ion exchange inhibit realization heterostructures, severely limiting applicability decelerating commercialization. Here, a block copolymer templated perovskite nanocrystal synthesis with post‐synthetic treatment is combined UV‐C light obtain ultra‐stable thin film emitters. The UV induces cross‐linking between polymer strands, thereby rendering them insoluble organic solvent nearly impervious diffusion while retaining nanocrystals’ optical properties. This method enabled fabrication an all‐perovskite white light‐emitting film. resulting films feature linewidths ( < 95 meV) for each RGB peak. Additionally, color temperature ’white’ can be tuned gamut approximating Rec. 2020 standard. These RGB‐emissive phosphor commercial or blue LED backlights create high‐efficiency, high‐quality phosphor‐converted LEDs displays.
Language: Английский
Citations
0
ACS Nano, Journal Year: 2025, Volume and Issue: unknown
Published: April 14, 2025
Lead halide perovskite nanocrystal (PNC) scintillators featuring a fast decay and high radiation hardness have garnered significant attention. A PNC loading is essential to ensure strong X-ray absorption for scintillator applications, but concentrated PNCs tend aggregate in the solid state, resulting emission quenching. Employing dispersion medium offers promising strategy produce high-loading solids without agglomeration. Herein, we synthesize CsPbBr3 PNC/metal-organic framework (MOF) nanostructures achieve within MOF hosts. The macroporous cavities of hierarchically porous (HP) MOFs can host more than confined nanometer-scale spaces microporous MOFs. Additionally, surface-rich structure aids dispersing PNCs, effectively reducing aggregation-induced We find that HP-MOFs ratio 75%, as well less-aggregated PNCs. As result, PNC/HP-MOF exhibits 2.3 times higher light yield scintillator, primarily from enhanced luminance efficiency well-dispersed bright features nanostructure enable static dynamic imaging industrial inspection applications. These findings highlight constructing crucial advancing applications scintillators.
Language: Английский
Citations
0
Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 111084 - 111084
Published: April 1, 2025
Language: Английский
Citations
0
Advanced Materials, Journal Year: 2025, Volume and Issue: unknown
Published: May 9, 2025
Abstract Metal halide perovskites have gained worldwide attention as excellent optoelectronic materials. Over the past decade, perovskite‐based color conversion technology has shown significant promise for commercialization, particularly in display applications. Prototypes of displays utilizing this made remarkable achievements. As slightly more than a decade elapsed since discovery metal perovskite light‐emitting diodes, comprehensive review, and outlook is crucial to advance explore its full potential next‐generation displays. To end, paper systematically outlined strategies enhancing material performance patterning fabrication techniques converters. Building on current technological advancements, review also summarizes new chances emerging morphologies. Furthermore, key challenges hindering commercialization converters are pointed out guide future research development. This aims offer valuable insights into advanced
Language: Английский
Citations
0
Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: unknown, P. 177135 - 177135
Published: Oct. 1, 2024
Language: Английский
Citations
2