Constructing Dual-Emitting via Energy Transfer in SrScOF:Mn,Nd Phosphors For High-Performance Temperature Sensing.

The development of high-sensitivity thermometers has become increasingly important in recent years as the demand for noncontact optical temperature measurement has grown. Herein, we report a series of SrScOF:Mn,Nd (SSOF:Mn,Nd) phosphors synthesized by the traditional high-temperature solid-state method for high-performance temperature sensing. SrScOF possesses a [ScO6F] octahedron and [SrO9F] tridecahedron, doped Mn ions occupy the octahedral sites and emit deep red light at 650-750 nm, and doped Nd ions occupy the tridecahedral sites and emit near-infrared light.

Fenton-Inactive Cd Enables Highly Selective O-Derived Domino Reaction.

Advancing and deploying Fenton-inactive Cd that combines excellent catalytic activity, selectivity, and stability remains a serious challenge, predominantly owing to the difficulty in regulating the intrinsic electronic states and local geometric structures of such fully occupied ds configuration. In this work, a combination of experiments and theoretical calculations reveals that the incorporation of boron (B) enables the tuning of the average oxidation state of Cd to Cd, facilitating electron localization and implementing a different electrocatalytic preference compared to conventional d-electron configurations. The resulting Cd(B) catalyst demonstrates high selectivity (>90% on average) in the O-to-HO conversion, negligible activity loss over 100 h, and a superior HO production rate (15.

Tunable Broadband NIR-II Emission via Cr-Er Energy Transfer in CaMgGeO:Cr,Er Phosphors for Nondestructive Analysis.

Although there have been numerous reports on broadband near-infrared (NIR) emitting phosphors, their emissions are mainly concentrated in the range of 700-1000 nm (NIR-I). Herein, we successfully synthesized a broadband near-infrared phosphor CaMgGeO:Cr(CMG:Cr) with an emission in the range of 1000-1600 nm (NIR-II). The introduction of Er ions into CMG:Cr resulted in a wider near-infrared emission phosphor CaMgGeO:Cr,Er (fwhm = 361 nm), compensating for the luminescence of 1500-1600 nm.

Customized Cyan Phosphors for Efficient Full-Spectrum Illumination and Fingerprint Detection.

Traditional lighting methods have environmental and efficiency drawbacks. These methods are gradually being overshadowed by light-emitting diodes (LEDs) because of their superior color rendering and energy efficiency. In this study, color-tunable NaBa(Ba/Sr/Ca)SiOF:Eu phosphors are successfully designed by modulating the local crystal field environment through homodominant-group cation substitution, thereby allowing for a spectral shift from blue to bright cyan.

Bioimaging and prospects of night pearls-based persistence phosphors in cancer diagnostics.

Inorganic persistent phosphors feature great potential for cancer diagnosis due to the long luminescence lifetime, low background scattering, and minimal autofluorescence. With the prominent advantages of near-infrared light, such as deep penetration, high resolution, low autofluorescence, and tissue absorption, persistent phosphors can be used for deep bioimaging. We focus on highlighting inorganic persistent phosphors, emphasizing the synthesis methods and applications in cancer diagnostics.

Efficient Energy Transfer for Near-Perfect Quantum Efficiency and Thermal Stability.

The pursuit of high-quality phosphors exhibiting swift response to near-ultraviolet (n-UV) excitation, elevated quantum efficiency (QE), superior thermal stability, and impeccable light quality has been a focal point of investigation. In this research, we synthesized a novel KLaBO:Ce,Tb (KLBO:Ce,Tb) color-tunable phosphor that meets these requirements. KLBO:Ce can be stimulated efficiently by the n-UV light and shows an intense blue emission centered at 437 nm.

Novel Spatially Asymmetric Copper Bismuthate-Mediated Augmentation of Energy Conversion to Realize "Three-Step" Tumor Suppression.

The generally undesirable bandgap and electron-hole complexation of inorganic sonosensitizers limit the efficiency of reactive oxygen species (ROS) generation, affecting the effectiveness of sonodynamic therapy (SDT). Comparatively, the novel polyvinylpyrrolidone-modified copper bismuthate (PCBO) sonosensitizers are manufactured for a "three-step" SDT promotion. In brief, first, the strong hybridization between Bi 6s and O 2p orbitals in PCBO narrows the bandgap (1.

Bright white light emission from lanthanide oxide LaGdO for LED lighting by Bi to Eu energy transfer.

Phosphors with intrinsic white light emission are of great potential in constructing high-quality white LEDs (WLEDs). In this work, we propose the use of energy transfer from Bi to Eu ions for white light emission. A unique Bi-activated phosphor LaGdO (LGO):Bi was generated using the conventional high-temperature solid-state process.

Well-Performed Green Phosphor BaYSiO:Ce,Tb with High Quantum Efficiency and Thermal Stability.

For Tb-doped green phosphors, the energy transfer from Ce to Tb can largely enhance the absorption of excitation; however, obtaining phosphors that exhibit both high quantum efficiency and thermal stability continues to pose a significant challenge. Herein, we established a paradigm to achieve novel silicate BaYSiO (BYSO):Ce,Tb. The near-ultraviolet light efficiently excites the BYSO:Ce material, causing it to emit light at a wavelength of 408 nm.

Hydrothermal synthesis of ZnGaO nanophosphors with high internal quantum efficiency for near-infrared pc-LEDs.

NIR luminescent materials have garnered widespread attention because of their exceptional properties, with high tissue penetration, low absorption and high signal-to-noise ratio in the field of optical imaging. However, producing nanophosphors with high quantum yields of emitting infrared light with wavelengths above 1000 nm remains a significant challenge. Here, we prepared a nanoscale ZnGaO:Cr,Ni phosphor with good luminescence performance in near-infrared emission, which was synthesized a hydrothermal method and subsequent calcination process.

An efficient blue-violet phosphor: an advanced material designed for high-quality full-spectrum lighting.

A highly efficient phosphor with exceptional luminescence properties is crucial for achieving high-quality solid-state white-light illumination. Here, this paper presents a groundbreaking discovery, an innovative blue-violet emitting BaSr(BO)Cl:Ce (BSBCl:Ce) phosphor designed with remarkable thermal stability and quantum efficiency for full spectrum white light-emitting diodes (WLEDs). By employing a high-temperature solid-phase method, we synthesized various BSBCl:Ce phosphors with different Ce doping concentrations.

Remote Control and Noninvasive Detection Enabled by a High-performance NIR pc-LED.

In an increasing manner, near-infrared phosphor-converted light-emitting diodes (NIR pc-LEDs) are considered to be exemplary light sources owing to their notable attributes of elevated output power, economical nature, and exceptional portability. NIR phosphors are critical components of NIR pc-LEDs. Herein, we report a novel blue light excitable NIR phosphor CaLuZrScAlO:Cr (CLZSA:Cr) as a crucial and efficient broadband NIR emitter.

Energy transfer and tunable emission in BaSrGdO:Bi,Eu phosphors for warm WLED.

In this work, a series of BaSrGdO:Bi blue phosphors was synthesized employing the high-temperature solid-state method. Phase purity of the samples was verified by X-ray diffraction and Rietveld refinement. Time-resolved photoluminescence spectra revealed the existence of two distinct Bi sites.

Crystal Field Engineering Yields New 3D Layered Solid Solution Phosphors (Ca/Sr)MgAlSiO:Eu for White-Light-Emitting Diode Full-Spectrum Lighting.

The cation-equivalent substitution strategy has the ability to manipulate the luminescence color of phosphors and enhance their overall luminescence performance. A series of novel yellow feldspar-type 3D layered phosphors (CaSr)MgAlSiO:Eu were synthesized using a high-temperature solid-state reaction. The solid solution phosphors belong to a tetragonal crystal system with a space group of 4̅2 and cell parameters of = = 7.

High Output Power and High Quantum Efficiency in Novel NIR Phosphor MgAlGa B O :Cr with Profound FWHM Variation.

There is strong demand for ultraefficient near-infrared (NIR) phosphors with adjustable emission properties for next-generation intelligent NIR light sources. Designing phosphors with large full-width at half-maximum (FWHM) variations is challenging. In this study, novel near-ultraviolet light-emitting diode (LED)-excited NIR phosphors, MgAlGa B O :Cr (MAGBO:Cr ), with three emission centers achieve ultra-narrowband (FWHM = 29 nm) to ultra-broadband (FWHM = 260 nm) emission with increasing Cr concentration.

An efficient blue-excitable broadband YScAlO:Ce garnet phosphor for WLEDs.

Most commercial phosphor-converted white light-emitting diodes (pc-WLEDs) are manufactured with blue LED chips and yellow-emitting YAlO:Ce (YAG:Ce) garnet phosphor, but the lack of blue-green light in the spectrum results in a low color rendering index (CRI). In this paper, we synthesized YScAlO:Ce (YSAG:Ce) by replacing Al in YAG:Ce with Sc. The introduction of Sc with a larger ionic radius through a cation substitution strategy causes lattice expansion, elongation of the Y-O bond, and ultimately a decrease in Ce 5d level crystal field splitting.

Efficient and zero thermal quenching Sm-activated LiLaTiTaO phosphor for white LEDs.

In this work, we prepared a new orange-red phosphor LiLaTiTaO:Sm (abbreviated as LLTT:Sm) for white light-emitting diodes (w-LEDs). Its crystal structure, microstructure, photoluminescence characteristics, luminescence lifetime and thermal quenching properties were studied in depth. The LLTT:Sm phosphor shows four intense emission peaks at 563, 597, 643, and 706 nm when excited at 407 nm.

Lanthanide-doped NaMgScF exhibiting downshifting and upconversion emissions for multicolor anti-counterfeiting.

NaMgScF (NMSF) was experimentally obtained for the first time by combining hydrothermal and high-temperature solid-state reactions. X-ray powder diffraction (XRD) combined with Rietveld refinement confirms that NMSF is crystallized in the space group with the cell parameters = 10.40860(18), = 7.

Achieving High Quantum Efficiency Broadband NIR Mg Ta O :Cr Phosphor Through Lithium-Ion Compensation.

Ultra-efficient broadband near-infrared (NIR) phosphor-converted light-emitting diodes (pc-LEDs) are urgently needed to improve the detection sensitivity and spatial resolution of current smart NIR spectroscopy-based techniques. Nonetheless, the performance of NIR pc-LED has severely limited owing to the external quantum efficiency (EQE) bottleneck of NIR light-emitting materials. Herein, a blue LED excitable Cr -doped tetramagnesium ditantalate (Mg Ta O , MT) phosphor is advantageously modified through lithium ion as a key efficient broadband NIR emitter to achieve high optical output power of the NIR light source.

Double Perovskite Mn-Doped LaCaSnO/LaMgSnO Phosphor for Near-Ultraviolet Light Excited W-LEDs and Plant Growth.

Non-rare earth doped oxide phosphors with far-red emission have become one of the hot spots of current research due to their low price and excellent physicochemical stability as the red component in white light-emitting diodes (W-LEDs) and plant growth. Herein, we report novel Mn-doped LaCaSnO and LaMgSnO phosphors by high-temperature solid-phase synthesis and analyzed their crystal structures by XRD and Rietveld refinement. Their excitation spectra consist of two distinct excitation bands with the dominant excitation range from 250 to 450 nm, indicating that they possess strong absorption of near-ultraviolet light.

A Color-tunable Nitride Phosphor for Near-Ultraviolet Excitation of White Light-emitting Diodes.

Due to the diversity of structure and composition and the unique coordination environment, nitride materials enable the doped activator ions to possess compelling luminescence characteristics, such as rich emission colors, favorable stability and tunable emission spectra. Here, novel SrLuSi N :Ce ,Tb nitride phosphors were successfully synthesized by a modified carbothermal reduction and nitridation method at atmospheric pressure. SrLuSi N (SLSN) belongs to hexagonal symmetry, with space group P6 mc, and its crystal structure is composed of the basic building block with corner-sharing [SiN ] tetrahedron.

Broadband Near-Infrared-Emitting Phosphors with Suppressed Concentration Quenching in a Two-Dimensional Structure.

For inorganic luminescent materials with activators, the energy yield is usually observed to decrease with an increase in activator concentration, which is known as the concentration quenching effect. To inhibit this phenomenon, a common strategy is to increase the distance between activators. Most previous reports have focused on the three-dimensional crystal lattice, and there have been few reports about two-dimensional layered structure.

Highly thermally stable Cr and Yb codoped GdGaSbO phosphors for broadband near-infrared applications.

GdGaSbO:Cr,Yb phosphors with efficient broadband NIR emission were prepared by a solid-state reaction. Under the excitation of 448 nm, the GdGaSbO:Cr (GGS:Cr) phosphor exhibits a broadband NIR emission band centered at approximately 770 nm with a full width at half maximum (FWHM) of 160 nm. In addition, Yb codoping can distinctly improve the photoluminescence properties of the GGS:Cr phosphor, leading to broadening of the FWHM and greatly enhancing the thermal stability of the phosphor.

Synthesis, Characterization, and Catalytic Study of Amine-Bridged Bis(phenolato) Co(II) and Co(II/III)-M(I) Complexes (M = K or Na).

Co(II) complexes bearing amine-bridged bis(phenolato) complexes have been synthesized through reactions of bis(phenols) with CoCl or Co(OAc). Oxidation of the Co(II) complex with air resulted in partial oxidation, generating mixed valence Co(II/III) complexes and . In addition, due to the presence of alkali compounds (KOAc and NaOMe), and formed as Co-alkali metal heterometallic complexes, which are the first example of mixed valence Co(II/III)-M(I) (M = K or Na) complexes.

Novel SrGdAlO:Mn, Nd, and Yb phosphors for c-Si solar cells.

Novel single-doped and codoped SrGdAlO-based (SGA) phosphors with tunable emission were synthesized via the solid-state reaction approach. The optimal SGA:0.0008Mn phosphor presents an emission band peaking at 709 nm and shows great red luminescence properties.