Fabrication and photoluminescence characteristics of novel red-emitting Ba2LuNbO6:Eu3+ double-perovskite phosphors on near UV WLEDs

A bright orange-red emitting phosphor Ba9La2W4O24:Eu3+ with double perovskite structure and abnormal thermal quenching behavior

“…It has higher internal quantum efficiency compared to those of recently reported Eu 3+ -doped double perovskite phosphors. 43–46 This result provides strong evidence for the potential of BLWO:0.8Eu 3+ in the application of WLED red phosphors.…”

“…However, surprisingly, at the LED operating temperature (145 1C), the emission intensity is still controlled at 97.16% compared to room temperature. This result is better than for the Eu 3+ -doped double perovskite phosphors that were recently reported, [43][44][45][46][47] indicating their wonderful thermal stability and outstanding potential for applications in the WLED field. This abnormal thermal quenching behavior has been reported in other work.…”

Controlled mechano-luminescence properties of SrGa2O4:Tb3+ co-doping with Dy3+ and Eu3+ ions

“…Mechano-luminescence (ML) is a light-emitting phenomenon when the corresponding ML materials are stimulated by various mechanics, such as compressing, stretching, bending and rubbing, as well as in response to tides and wind. [1][2][3][4] The explored ML composites are generally composed of organic polymers and inorganic phosphors, which are potentially employed for constructing optoelectrical devices that are free from optical or electrical sources for operation. 5,6 Herein, structural damage diagnosis platforms, E-signature systems, articial skins, and smart wearable devices based on the fascinating ML behavior have been developed.…”

Enhanced Luminescence of Long-Wavelength Broadband Near-Infrared Germanate Phosphors

“…As one of the most special sensitizers, the luminescence of Eu 3+ originates from the f–f forbidden transition and is less sensitive to the surrounding environment. It offers strong red emission under efficient blue excitation, which has great potential in optimizing the luminescence performance of activated Cr 4+ ions. − In this paper, we study the olivine structure, photoluminescence characteristics, and energy-transfer mechanism of CGO: x Eu 3+ , y Cr 4+ phosphors. The luminescence intensity of Cr 4+ is enhanced by energy transfer from Eu 3+ to Cr 4+ , and the mechanism is elucidated based on photoluminescence excitation spectra (PLE), photoluminescence spectra (PL), and decay lifetime curves.…”