Related references
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Article
Chemistry, Multidisciplinary
Kai Li et al.
Summary: In this study, inorganic lead-free cesium manganese halide nanocrystals embedded glasses were synthesized for the first time. These glasses exhibited red photoluminescence with broad PL band, tunable photoluminescence from red to green, and outstanding long-term stabilities. Moreover, they also showed highly efficient radioluminescence and stability against high energy irradiation, making them promising for applications in light-emitting diodes and scintillators.
Article
Chemistry, Inorganic & Nuclear
Yi-Shin Chen et al.
Summary: Organic-inorganic hybrid metal halides have gained attention for their bright light emission, tunable photoluminescence wavelength, and convenient synthesis method. This study focuses on (C10H16N)(2)MnBr4, which emits bright green light with a high photoluminescence quantum yield. The phase transition and the relationship between structural and optical properties in (C10H16N)(2)MnBr4 at different temperatures and pressures are investigated.
INORGANIC CHEMISTRY
(2022)
Review
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Mu-Huai Fang et al.
Summary: This paper provides a comprehensive review of the development of phosphor materials in different generations, highlighting the key design mechanisms to meet the requirements of high-level LED applications. The demands for high brightness, high thermal stability, narrowband emission for high color gamut, and broadband emission for near-infrared are discussed. Future prospects for micro-LED applications and nanoluminescent materials are also provided.
Article
Chemistry, Inorganic & Nuclear
Deep Kumar Das et al.
Summary: Zero-dimensional metal halide hybrids with high exciton binding energy are excellent materials for lighting applications. This study demonstrates a rational synthetic strategy to modulate the structure and luminescence properties of 0D Mn(II) halide hybrids utilizing structure-directing d10 metal ions (Cd2+/Zn2+). The structural flexibility of the host d10 metal ions allows for the transformation to tunable luminescence of the Mn halide hybrids.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Yue Su et al.
Summary: This work presents the synthesis of lead-free all-inorganic Mn2+-based perovskite-like single crystals using a designed nonstoichiometric precursor ratio. The special crystal structure enables efficient blue light excitation and red emission from Mn2+, allowing for a good match with commercial blue LED chips and efficient sensitization for Ln3+ emitters. Additionally, the incorporation of Yb3+, Er3+, and Ho3+ enables multiple NIR emissions in CsMnCl3 single crystals. Notably, the Ln3+ NIR emissions exhibit robust thermal-quenching resistance above room temperature, showing (near-) zero thermal-quenching and even anti-thermal quenching.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
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Xuerong Hao et al.
Summary: In this study, non-lead perovskite nanocrystals were successfully synthesized, and the energy transfer was effectively suppressed by ion substitution, resulting in better confinement of excitons. The prepared non-lead perovskite nanocrystals exhibited red emission and higher photoluminescence quantum yield, and a tunable white LED was achieved.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Optics
Tae Wook Kang et al.
Summary: We have demonstrated the crystal phase-selective synthesis of lead-free cesium manganese bromine perovskite nanocrystals by changing the solvent concentration. The structure phase of the nanocrystals was determined by the solvent concentration, and the emission peaks varied accordingly. After a durability test, the lead-free perovskite nanocrystals maintained their initial emission intensity, while the metal halide nanocrystals showed an increase in red emission due to the post-synthesis of another type of nanocrystals.
Article
Chemistry, Multidisciplinary
Wenya Chen et al.
Summary: In recent years, all-inorganic metal lead halide cesium perovskites have shown excellent luminescence performance in wide color gamut backlight displays. However, the leakage of Pb2+ due to the unstable structure of cesium perovskites poses a serious threat to human health. This study successfully prepared Zn-doped Cs3MnBr5 metal halides, which demonstrated highly efficient green emission and excellent stability. Encapsulating the metal halides in a polymer further improved their water, acid, daylight, and blue light stabilities. The designed backlight display device based on these metal halides achieved a color gamut that surpassed the NTSC 1953 standard, showing great potential for non-toxic, low-cost, and high-performance liquid crystal displays.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Physical
Houman Bahmani Jalali et al.
Summary: This study presents a downshifting configuration based on lead-free cesium manganese bromide nanocrystals, which act as broad visible absorbers coupled to sharp emission in the near-infrared (NIR) regions. The correlation between lanthanide emission and the nanocrystal's visible absorption was confirmed, and the mechanism of downconversion was understood through density functional theory calculations.
ACS ENERGY LETTERS
(2022)
Article
Multidisciplinary Sciences
Joo Sung Kim et al.
Summary: This study reports the development of ultra-bright, efficient, and stable light-emitting diodes (PeLEDs) made of core/shell perovskite nanocrystals. The nanocrystals, obtained through in situ reaction of benzylphosphonic acid with polycrystalline perovskite films, demonstrate strong carrier confinement and maintain good charge-transport properties.
Article
Chemistry, Physical
Kai Li et al.
Summary: This study reports the precipitation of lead-free Mn:Cs2ZnX4 nanocrystals in glasses, which exhibit efficient green and red photoluminescence. The coordination environment of Mn2+ ions can be tuned by adjusting the size and halide component of the nanocrystals, resulting in tunable photoluminescence with improved quantum efficiency. The in-situ precipitation of these nanocrystals in glasses significantly enhances their thermal, chemical, and photo-stabilities, making them promising for light-emitting diodes with stable chromaticity coordinates.
Editorial Material
Nanoscience & Nanotechnology
Jiawei Chen et al.
Summary: Thanks to the advancements in WLEDs and their design principles, modular crystalline hybrids are providing energy-efficient alternatives for lighting.
NATURE REVIEWS MATERIALS
(2022)
Article
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Tao Huang et al.
Summary: In this paper, a new zero-dimensional organic-inorganic hybrid manganese bromide single crystal with high efficiency yellow-green emission has been synthesized. The relationship between the emission wavelength and relaxation process under CW laser excitation was investigated. The results showed different emission colors under continuous-wave laser excitation of different wavelengths. The study also discussed the photophysical properties of multiple emission bands and the microscopic interactions of the spin, carrier, and phonon inside the lattice.
MATERIALS TODAY PHYSICS
(2022)
Article
Chemistry, Inorganic & Nuclear
Zhi-Cheng Zhang et al.
Summary: This study reports a new Mn-based hybrid material with adjustable green-orange-green thermochromic luminescence. By controlling the temperature, thermochromic luminescence can be achieved in different temperature ranges, providing new insights into the synthesis and application of thermochromic materials.
INORGANIC CHEMISTRY
(2022)
Article
Optics
Chen Li et al.
Summary: Metal halide with high luminescence property has potential application in X-ray detection and imaging. However, the toxicity of some metal cations restricts their widespread use. In this study, a lead-free pyridine manganese halide was synthesized and found to exhibit superior performance.
JOURNAL OF LUMINESCENCE
(2022)
Article
Materials Science, Multidisciplinary
Qingkun Kong et al.
Summary: In this study, a pure Mn-based metal halide with excellent optical properties and recyclability is reported. The material can quickly recover from aqueous solution under mild heat stress and demonstrates a sensitive X-ray response, making it suitable for X-ray imaging.
ACS MATERIALS LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Xusheng Zhang et al.
Summary: In this study, a low-dimensional organic-inorganic metal halide material with high fluorescence efficiency and good thermal stability was successfully synthesized. The doping of Mn2+ was found to change the emitted fluorescence color and exhibited temperature-responsive properties at different temperatures.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Engineering, Electrical & Electronic
Na Wang et al.
Summary: In this work, four zero-dimensional Mn2+-based organic-inorganic metal halides (OIMHs) were synthesized, which exhibited bright narrow-band green luminescence under blue-light excitation. Two of the materials showed small full width at half-maximum (FWHM) values and high photoluminescence quantum yields (PLQYs) at room temperature. Additionally, these materials demonstrated high thermal quenching temperatures. Finally, one of the materials was combined with commercial phosphors to fabricate light-emitting diodes (LEDs) with a wide color gamut.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
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Xuerong Hao et al.
Summary: In this study, all-inorganic Zn2+-doped lead-free perovskite nanocrystals were successfully synthesized, with increased photoluminescence quantum yield and application in white light-emitting diodes.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
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Chemistry, Multidisciplinary
Hui Xiao et al.
Summary: The study introduces a novel one-dimensional lead-free CsMnCl3(H2O)2 single crystal with solvatochromic photoluminescence properties, showing crystal structure transformations and luminescence color changes upon contact with specific solvents. A test paper containing CsMnCl3(H2O)2 can quickly detect DMAC and DMF, indicating potential applications for low-dimensional lead-free perovskites.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Ruosheng Zeng et al.
Summary: The study investigates the effect of Te4+ doping on the optical properties of lead-free Cs2SnCl6 perovskite variants, revealing the luminescence mechanism and processes induced by Te4+ doping through calculations and spectral analysis. The results show that the emission in Te4+:Cs2SnCl6 originates from STE recombination and is influenced by temperature-induced lattice distortion.
Article
Chemistry, Multidisciplinary
Tingming Jiang et al.
Summary: Environmentally friendly metal halides, such as tetramethylammonium manganese chloride and tetraethylammonium bromide, have been synthesized and shown to have high photoluminescence quantum yields and good environmental stability. When blended in white light-emitting diodes, they display outstanding luminous efficacy. Under X-ray excitation, these materials demonstrate steady-state X-ray light yields and radiation hardness.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Siyu Yan et al.
Summary: Lead-based perovskite light-emitting diodes (PeLEDs) exhibit excellent performance, while in order to develop more environmentally friendly perovskite materials, researchers have developed a novel manganese-based organic-inorganic hybrid perovskite with superior performance and stability compared to other lead-free PeLEDs.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Long Shao et al.
Summary: The lead-free Ce3+ doped Cs3MnBr5 metal halide nanocrystals exhibit a broadband UV response and efficient blue photoluminescence, with significantly improved photoluminescence quantum yield and longtime stability. These nanocrystals were used to fabricate a highly desirable broadband UV photodetector with a responsivity of 1.1 A/W and millisecond response time, demonstrating a strategy for novel UV optoelectronic systems.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Binbin Su et al.
Summary: The study presents a novel method to achieve high-efficiency broadband NIR emission in metal halide systems by incorporating Sb3+ into the Cs2ZnCl4 matrix. It successfully demonstrates the development of a lead-free metal halide Cs2ZnCl4:Sb3+ as a NIR light source, with the potential for red-shifting emission peaks through halide substitution.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Qingkun Kong et al.
Summary: The study introduced a unique phase transition strategy to engineer the emission color of lead-free cesium manganese bromides nanocrystals, achieving tunable red/green/blue emission with high color purity. Under humid conditions, both 1D and 0D nanocrystals can transform into 0D Cs2MnBr4.2 H2O nanocrystals, which can inversely transform back into a mixture of phases. This work highlights the tunable optical properties in single component nanocrystals through phase engineering, providing a new direction for future light-emitting devices.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Hui Peng et al.
Summary: The report presents a new zero-dimensional Mn-based hybrid metal halide of C4H14N2MnBr4 single crystals with bright orange emission due to the incorporation of bi-amine group organic ions. It exhibits unique dual-emission bands related to polaronic exciton or selftrapped exciton (STE1) and bipolaronic exciton (STE2) attributed to enhanced charged electron-phonon coupling, combined with d-d transition. The temperature-dependent photoluminescence spectra demonstrate reversible thermo-induced PL characteristics and different phase transitions in the crystals.
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