Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(18), P. 17343 - 17354
Published: Sept. 9, 2024
Language: Английский
Light Science & Applications, Journal Year: 2025, Volume and Issue: 14(1)
Published: Jan. 2, 2025
Abstract Low-dimensional lead-free metal halide perovskites are highly attractive for cutting-edge optoelectronic applications. Herein, we report a class of scandium-based double perovskite crystals comprising antimony dopants that can generate multiexcitonic emissions in the ultraviolet, blue, and yellow spectral regions. Owing to zero-dimensional nature crystal lattice minimizes energy crosstalk, different excitonic states be selectively excited by ultraviolet light, X-ray irradiation, mechanical action, enabling dynamic control steady/transient-state features modulating excitation modes. Remarkably, transparent exhibits efficient white photoluminescence (quantum yield >97%), blue emission with long afterglow (duration >9 h), high-brightness self-reproducible violet-blue mechanoluminescence. These findings reveal exceptional capability low-dimensional integrating various luminescence, offering exciting opportunities multi-level data encryption all-in-one authentication technologies.
Language: Английский
Citations
2
ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(4), P. 1587 - 1603
Published: March 19, 2024
Metal halide perovskites (MHPs) have demonstrated remarkable performance with efficient luminescence and color tunability, which potentially replace traditional luminescent materials in up-to-date display technology. However, MHPs still face serious challenges stability efficiency for applications. The ligand strategy is currently one of the most effective approaches comprehensive improvement perovskite displays (Pe-displays). This paper reviews recent progress Pe-displays from perspective years, has never been emphasized before. First, defect types are summarized to boost further understanding MHPs. detailed strategies different site defects then reviewed purpose work. Finally, outlooks raised promote study commercialization next-generation Pe-displays. review comprehensively focuses on that can be widely extended applications emerging displays.
Language: Английский
Citations
12
Advanced Optical Materials, Journal Year: 2024, Volume and Issue: 12(13)
Published: Jan. 31, 2024
Abstract Lead halide perovskites are widely used and intensively studied in optoelectronic devices due to their superior properties. However, the toxicity of Pb hinders industrialization perovskite devices. Sn has a similar electronic structure Pb, thus been as an alternative Pb‐based optoelectronics recent years. In this review, research progress luminescent properties synthesis methods 2D tin summarized. It is also highlight unique dual emission phenomenon summarize several types possible luminous mechanisms. At last, development based light‐emitting diodes overviewed, challenges oxidative inhibition efficiency improvement discussed. This review expected provide comprehensive perspective on diode applications perovskites.
Language: Английский
Citations
11
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: March 16, 2025
Abstract While the emergence of copper(I)‐iodide cluster hybrid materials as potential substitutes for toxic lead halides in electroluminescence applications represents a major advancement, efficiency still needs improvement and fact circularly polarized (CPEL) remains largely unexplored. In this work, design chiral phosphine ligands is dedicated to attaining strongly luminescent materials, thus achieving high‐efficiency CPEL through host‐guest doping strategy. The hybrids exhibit intense yellow emission peaked at 567 nm with notable luminescence (CPL). Doping films comprising 30% 1,3‐bis(N‐carbazolyl)benzene (mCP), 2,6‐bis(3‐(9H‐carbazol‐9‐yl)phenyl)pyridine (2,6‐DCZPPY), 40% Cu 2 I demonstrated excellent CPL quantum yield (PLQY) exceeding 80% low surface roughness 0.358 nm. Based on this, electrically driven light‐emitting diodes (LEDs) dissymmetry factor ( g EL ) 1.36×10 −3 peak external (EQE) 20.5% are successfully developed. Notably, work not only first demonstration Cu(I) halide clusters but also provides one top device efficiencies non‐lead metal materials.
Language: Английский
Citations
1
ChemPlusChem, Journal Year: 2024, Volume and Issue: 89(5)
Published: Jan. 5, 2024
Zero-dimensional lead halide perovskite nanocrystals (NCs) exhibit size-dependent bandgap and carrier confinement compared to bulk counterparts due the quantum effect, making them essential for achieving wide-color-gamut displays, studying excitonic spin relaxation, constructing superlattices. Despite their promising potential, they face a variety of technical bottlenecks, such as insufficient color reproducibility, limited large-scale production, low stability, toxicity. An outline research roadmap is provided in review, which highlights key challenges developing NCs commercial applications.
Language: Английский
Citations
6
Advanced Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 23, 2024
Abstract Perovskite light‐emitting diodes (Pero‐LEDs) have garnered significant attention due to their exceptional emission characteristics, including narrow full width at half maximum, high color purity, and tunable colors. Recent efficiency operational stability advancements positioned Pero‐LEDs as a promising next‐generation display technology. Extensive research review articles on the compositional engineering defect passivation of perovskite layers substantially contributed development multi‐color high‐efficiency Pero‐LEDs. However, crucial aspect charge transport layer (CTL) modulation in remains relatively underexplored. CTL not only impacts carrier injection balance but also plays critical role passivating surface, blocking ion migration, enhancing crystallinity, improving light extraction efficiency. Therefore, optimizing CTLs is pivotal for further Pero‐LED performance. Herein, this discusses roles categorizes both reported potential materials. Then, various optimization strategies are presented, alongside an analysis selection criteria high‐performance Finally, summary outlook advance performances provided.
Language: Английский
Citations
5
Ceramics International, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 1, 2025
Language: Английский
Citations
0
Laser & Photonics Review, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 16, 2025
Abstract Tin (Sn)‐based perovskites have made notable advances with external quantum efficiency of over 20%, but still exhibit low electroluminescence brightness insufficient for outdoor displays. Here, it is demonstrated that compact phenethylammonium tin iodide (PEA 2 SnI 4 ) films an intact crystal structure can offer high luminance by optimizing the perovskite crystallization rate simultaneously engineering grain surface. Ammonium thiocyanate added to precursor solution generate film PEA x SCN 4‐ and NH I after spin‐coating. Sn 2+ − a strong interaction slows improve quality. During subsequent annealing, from replaces in forming thiourea, which escape leave crystals. It found optimized emitting layers provide outstanding coverage, crystallinity, trap state density, superior photophysical performance. Consequently, impressive 8285 cd m −2 pure red achieved, first report Sn‐based light‐emitting diodes meet display requirements.
Language: Английский
Citations
0
The Journal of Physical Chemistry Letters, Journal Year: 2025, Volume and Issue: unknown, P. 932 - 938
Published: Jan. 20, 2025
Intentional doping plays a pivotal role in customizing metal halides' electronic and optical features. This work manipulates the incorporation distribution of Mn2+ Cu(I) halide by controlling elemental steps involved growth-doping kinetics as well investigates localized lattice structures different configurations. Complementary experimental theoretical results demonstrate that uniform relatively high level can be achieved step-tailored strategy encompasses reducing growth rate matrix, enhancing surface adsorption Mn2+, facilitating dopants. The optimized configuration mitigates severe distortion decreases non-radiative transition rate, resulting explicit dual-band emission an enhanced photoluminescence quantum yield. underscores effective synthesis to harness full potential Mn2+-doped halides beyond Cu(I)-based ones also showcases new working paradigm separately procedures for obtaining with customized optical/optoelectronic properties.
Language: Английский
Citations
0
Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)
Published: Feb. 10, 2025
Language: Английский
Citations
0