Scientia Sinica Chimica, Journal Year: 2024, Volume and Issue: 54(8), P. 1194 - 1211
Published: July 12, 2024
Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 13, 2025
Low-dimensional organic-inorganic hybrid metal halide materials have attracted widespread attention due to their excellent and tunable photoelectric properties. However, the low intrinsic photoluminescence quantum yields (PLQYs) limit further applications in optoelectronic devices. Here, we report synthesis of lead-free zero-dimensional indium chloride crystals, (FA)3InCl6: xSb3+, with strong red-light emission through controlled Sb3+ doping. The optimal composition, 20.16% Sb3+, exhibits PLQY up 30% emits red broadband light centered at 690 nm. enhancement doped samples was investigated by combining temperature-dependent wavelength-dependent spectra, revealing self-trapped exciton (STE) recombination process. clear elucidation complexation process has provided a solid theoretical basis for optimization material properties, which is great significance development new light-emitting materials. Far-red phosphor-converted LED devices been constructed these demonstrate stable efficient various voltages, exhibiting superior stability. This study highlights potential Sb3+-doped halides achieve demonstrates single crystals indoor plant lighting, infrared imaging, photodynamic therapy wound healing.
Language: Английский
Citations
0
Laser & Photonics Review, Journal Year: 2025, Volume and Issue: unknown
Published: March 12, 2025
Abstract 0D indium‐based all‐inorganic metal halide perovskites offer great potential for multifunctional applications but face the challenges of poor structural adjustability and an incomplete dynamic picture self‐trapped exciton (STE) emissions. Here, a novel Cs 4 InCl 7 single crystal is developed as solvation bridge phase transformations to either 2 5 ·H O via water or into 3 6 by methanol. The diversified structures not only enrich emission colors also difference in coordination number symmetry + , laying foundations comprehending influence A‐site on STE Steady‐state transient spectroscopy together with density functional theory simulations, reveal that low geometry charge octahedron facilitate excited state distortions, leading strong second‐order Jahn‐Teller (SOJT) effect large Stokes shift Multicolor tuning Sb 3+ ‐doped under solvent heat stimuli enables extended optical anti‐counterfeiting, temperature sensing, sensors. work offers improved understanding SOJT manipulation atomic engineering lead‐free sheds light their broad practical applications.
Language: Английский
Citations
0
Small, Journal Year: 2025, Volume and Issue: unknown
Published: April 7, 2025
Abstract The development of single‐component white‐light emissive phosphors has become a key research area in white light‐emitting diode (WLED) technology. However, achieving real color reproduction with an ultrahigh rendering index (CRI) remains challenging. Herein, series 0D hybrid copper halides (TEA) 2 Cu Br 4‐ x Cl (TEA = tetraethylammonium, 0–4) crystals are designed and prepared by facile solvothermal method. By controlling the composition ratio − , emission spectra tunable visible light region from blue to yellow, crystal broadband CRI is obtained. Detailed studies on photophysical mechanism demonstrate that unique structure can produce effective self‐trapped excitons (STEs), its dual‐band phenomenon stems two STE states [Cu ] 2− dimer. Moreover, CIE coordinates (0.32, 0.33) approximated pure (0.33, 0.33), making it ideal choice for natural WLED applications. A device fabricated coating this emitter 310 nm UV chip, Ra 95 R9 90. This work provides new design principles developing eco‐friendly white‐emission solid‐state WLEDs.
Language: Английский
Citations
0
Accounts of Materials Research, Journal Year: 2025, Volume and Issue: unknown
Published: May 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
Advanced Optical Materials, Journal Year: 2024, Volume and Issue: unknown
Published: July 11, 2024
Abstract Chiral lead halide perovskites have captivated considerable attentions due to their distinctive attributes, such as ferroelectricity, spin‐dependent transport, and chiroptical activity. However, toxicity weak circularly polarized luminescence (CPL) cast a pall over practical applications. Here, series of 0D lead‐free chiral enantiomorphic hybrids, ( R ‐/ S ‐MBA) 3 In 1‐ x Sb Cl 6 (x = 0–1) is successfully developed. By optimizing the 3+ doping concentration 0.55%, resultant 99.45% 0.55% not only shows near‐unity quantum yield but also emanates potent CPL, boasting dissymmetry factor g lum ) 6.3 × 10 –3 . These efficient CPL activities are intricately tied presence twisted luminescent cluster [SbCl ] 3– induced by structural chirality. The comprehensive results reveal that emission perovskite originated from self‐trapped excitons (STEs) 5s 2 ions. Moreover, (MBA) single crystals exhibit bright orange UV detector signals. findings will pave way for further investigation in detectors based on optoelectronic materials.
Language: Английский
Citations
3
Laser & Photonics Review, Journal Year: 2024, Volume and Issue: unknown
Published: Aug. 17, 2024
Abstract Stimulus‐responsive materials that exhibit efficient circularly polarized luminescence (CPL) have gained much interest for application in advanced smart photonics. Herein, the CPL‐active enantiomorphic 0D Sb 3+ ‐doped (R/S) 2 InCl 7 (R/S = R/S‐2‐methylpiperazine) are synthesized via a solution method. They show broadband yellow emission with near‐unity photoluminescence quantum yield and CPL asymmetry factor of 1.7 × 10 −3 . Their fascinating chiroptical activity should be attributed to chirality transfer self‐trapped exciton caused by strong electron–phonon interaction. Particularly, H O‐induced structural transformation is demonstrated obtain non‐emission ·H O after exposure humid environment. Importantly, exhibits unique nonlinear optical responses, rotation angle between quarter‐wave plate linearly can regulate reversible switching negligible luminescence. Moreover, white light‐emitting diode fabricated combining blue phosphors BaMgAl 17 :Eu 2+ , device tunable control positive warm light regulating linear polarizer plate. Based on responses programmable multi‐mode fluorescence encoding system constructed, four‐level information encryption three‐level encrypted 3D color codes also realized further proof‐of‐concept experiment.
Language: Английский
Citations
3
Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(38), P. 17891 - 17900
Published: Sept. 10, 2024
The outstanding optical properties empower Sb
Language: Английский
Citations
1
Inorganic Chemistry, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 18, 2024
With suitable electron-phonon coupling strength, a near-unity broadband photoluminescence quantum yield (PLQY) can be achieved in organic-inorganic hybrid metal halides (OIHMHs) via self-trapped exciton (STE) emission. However, it is still challenging to obtain high-quality red emission from OIHMHs with desirable wavelength and high chemical stability, which hinders their practical application high-performance displays, plant-growth lighting, biomedical imaging. Herein, series of hafnium-based zero-dimensional (TPP)
Language: Английский
Citations
1
Scientia Sinica Chimica, Journal Year: 2024, Volume and Issue: 54(8), P. 1194 - 1211
Published: July 12, 2024
Citations
0