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10th Anniversary of LSA: Collection on Luminescence
2022 marks the 10th anniversary of Light: Science & Applications (LSA). In the past decade, LSA has published hundreds of outstanding researches covering the fundamentals and applications in all areas of optics and photonics. From those published papers, we have picked some on Luminescence to share with you, our readers. We hope this collection can stimulate more researches and practices in related fields, and promote further progress in optics and photonics research.
Confined-domain crosslink-enhanced emission effect was first studied to reveal the photoluminescence mechanism of carbonized polymer dots (CPDs). A general strategy was exploited to synthesize CPDs exhibiting tunable photoluminescence properties.
Long persistent luminescence of Gd3+ is reported and a possible mechanism of the trivalent lanthanides’ persistent luminescence in wide bandgap hosts is proposed.
Lanthanide-doped heterostructured nanocomposites were developed by using cation exchange method and successfully applied toward advanced optical anti-counterfeiting and information storage
Highly efficient Fe3+-activated Sr2-yCay(InSb)1-zSn2zO6 near-infrared-emitting phosphors exhibit tunable emission from 885 to 1005 nm with cation substitution of Ca2+ for Sr2+ and further cosubstitution of [Sn4+–Sn4+] for [In3+–Sb5+].
This work successfully achieves a strain-free AlN film with low dislocation density for DUV-LED through graphene-driving strain-pre-store engineering and present the unique mechanism of strain-relaxation in QvdW epitaxy.
The first observation of hyperfine and isotope structures, deformation splitting, and level anticrossing in luminescence spectra of crystals is reported, on the example of LiYF4:Ho. All-optical magnetic field sensor is proposed.
In this work, the pure green-emitting InP/ZnSexS1−x/ZnS quantum dots and their light-emitting diodes with high efficiency were successfully obtained by regulating the components of inner alloyed shell ZnSexS1−x layer.
Ultraviolet high-energy photons of phosphorescent carbon dots for antibacterial applications. Herein, the UV phosphorescent CNDs were achieved by decreasing conjugation size and spatial confinement. As a demonstration, the CNDs are used to inactivate gram-negative/positive bacteria.
The Ca6Ba(PO4)4O:Mn5+ provides ultranarrow near-infrared emission at 1140 nm that can be excited over 500–1000 nm spectral range, which makes this material an excellent near-infrared phosphor and blue/turquoise pigment.
An ideal model containing eight phenothiazine 5,5-dioxide derivatives was established to clearly prove the formation of triplet excimer. Competition between monomer (T1) and excimer (T1*) based on π-π stacking is the origin for their changed RTP properties.
Highly efficient quasi-2D perovskite light-emitting diodes with suppressed thermal quenching by avoiding defect-promoted exciton-phonon coupling were prepared via a phosphate fluorene passivation agent.
A highly efficient red-emitting Cs3EuGe3O9 phosphor for high-performance pc-WLEDs is discovered with non-concentration quenching, favourable thermal stability, high colour purity and negative thermal expansion.
Core-shelled nanoparticles NaYF4:Ln3+@NaYF4 with multicolor narrow-band persistent luminescence enable a new multidimensional optical information-storage technology.
Exponential relationship between upconversion luminescence intensity and internal OH- content obtained through the combination of quantitative control of the defect, advanced spectroscopy and theoretical model simulation.
This paper review recent advances in ultraviolet LEDs and summarize that multiple physical fields could built a toolkit for effectively controlling and tailoring crucial properties of nitride quantum structures.
This study provides a new way to naturally eliminate the SERS fluorescence background by doping with Nd ions. These fundamental discussions here provide a path to enhance Raman scattering and reduce the SERS background and a guideline for the investigation of CT and a new method for exploring fluorescence quenching.