Ag nanoparticles significantly improve the slow decay brightness of SrAl₂O₄:Eu²⁺,Dy³⁺ by the surface plasmon effect

Abstract

Long afterglow luminescence material is an important energy storage material. For large-scale applications, the low afterglow brightness specially in slow decay process is a weak point. At present, the methods...

Smart Mechanoluminescent Phosphors: A Review of Strontium‐Aluminate‐Based Materials, Properties, and Their Advanced Application Technologies

“…In addition, this method requires a 15% SiO 2 surface coating in order to protect the AgNP on the SAOED surface. [ 80 ] Yu et al. codoped SAO with Eu 2+ , Dy 3+ , and Er 3+ to achieve a continuous afterglow in the NIR band (peak at 1530 nm) for more than 10 min ( Figure 22 a,b ).…”

“…In addition, this method requires a 15% SiO 2 surface coating in order to protect the AgNP on the SAOED surface. [80] Yu et al codoped SAO with Eu 2+ , Dy 3+ , and Er 3+ to achieve a continuous afterglow in the NIR band (peak at 1530 nm) for more than 10 min (Figure 22a,b). [77] Zhang and co-workers extended the fluorescence band of SAOED to 550-700 nm band (peak at 600 nm) by encapsulating rhodamine B in mesoporous silica nanoparticles (MCM-R) as a color conversion agent (Figure 22c,d).…”

“…The Ag-NPs are uniformly distributed on the surface of SAOED to form an electrostatic field, which can assist in the formation of more photogenerated electrons captured by traps at different depths under illumination, resulting in a longer afterglow after the illumination stops. Reproduced with permission [80]. Copyright 2022, The Royal Society of Chemistry.…”

Efficient monodisperse upconversion composite prepared using high-density local field and its dual-mode temperature sensing

“…[18][19][20][21] These mechanisms can be simply described as enhanced excitation intensity or accelerated radiation attenuation rates via band matching. 22,23 However, the loss problem associated with reflection or scattering is serious in plasmonics/UCNPs hybrid systems, e.g., some systems even experience a loss of up to 60%. 24 Therefore, there is an urgent requirement for efficient plasmonic structures with high absorption rates to reduce losses.…”

5d → 4f transition of a lanthanide-activated MGa2S4 (M = Ca, Sr) semiconductor for mechanical-to-light energy conversion mediated by structural distortion

“…11,12 In general, ML materials are composed of ML host materials with noncentrosymmetric crystal structures and activators such as ZnS and transition metals, SrAl 2 O 4 and MZnOS (M = Ca, Sr, Ba) with lanthanides. 13,14 ZnS, in particular, has been widely applied in optomechanical displays, 15 dynamic structures, pressure mapping, 5,8 and structural health monitoring by embedding it in composites without any power supply at the target location because of its sustainable and renewable ML when activated by Mn 2+ /Cu 2+ . Thus, the development of ML materials with durable, recoverable and high luminance properties, such as ZnS: Mn/Cu, has become one of the primary research topics.…”