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.

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.

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.

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.

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.

Facile modulation the sensitivity of Eu/Eu-coactivated LiCaSiO phosphors through adjusting spatial mode and doping concentration.

Series of Eu/Eu-coactivated LiCaSiO phosphors were prepared by solid-state reaction technique. All the samples emitted the unique emissions of Eu and Eu ions when excited by 395 nm, while the strongest emission intensity was received when x = 0.03.