Showing papers in "Journal of Luminescence in 2017"

TL;DR: In this article, the effect of size reduction on light emission and efficiency on InGaN/GaN LED devices ranging from 10*10 to 500*500µm² was investigated.

TL;DR: In this paper, the physical, thermal, structural and optical properties of Dy 3+ doped lithium alumino-borate glasses (LABD glasses) have been studied for white LED (W-LED) application.

TL;DR: In this paper, a simple route to prepare graphene quantum dots (GQDs) using glucose carbonization was used to obtain a nonenzymatic glucose sensor with linear response to glucose over a concentration range of 4-40mM with a correlation coefficient of 0.97 and a low detection limit of approximately 3.0mM.

TL;DR: In this paper, the photophysical properties and particularities of chemical structures or compositions of four different families of probes: (i) organic fluorophores, (ii) fluorescent proteins (FPs), (iii) semi-conductor nanocrystals (quantum dots) and (iv) lanthanide(III)-based complexes and nanomaterials are presented.

TL;DR: In this article, double perovskite Li 2 MgZrO 4 (LMZ:Mn 4+ ) phosphor is prepared by high-temperature solid-state reaction method in air.

TL;DR: In this article, the authors provided an overview and interpretation of the spectroscopic data of the Bi3+ activator ion in 117 different inorganic compounds. And they used these energies, in combination with the electron binding energies in the host conduction and valence band, to determine the binding energies of the 6s ground state and 6p excited state relative to the vacuum level.

TL;DR: In this article, Dy3+-doped borate glasses with the chemical composition (60-x) B2O3-10 WO 3-10 ZnO-10 Li2O10 Na2O-x Dy3O3 (x=0.1, 0.25, 0., 0.75, 1.0, and 1.5 ǫ) have been synthesized by melt quenching technique and were characterized by X-ray diffraction (XRD), Scanning Electron Microscopy and Energy Dispersive

TL;DR: In this paper, the effect of co-doping with Yb3+ and non-lanthanide ions (Li+ and Ba2+) on the upconversion (UC) emission intensity has been investigated.

TL;DR: In this article, LiPbAlB glasses with Dy 3+ ions with varying concentration were synthesized by using the melt quenching technique to understand their feasibility in solid state lighting and laser devices.

TL;DR: In this article, a green-photoluminescent single layer graphene quantum dots (SLGQDs) were synthesized with only DI water and glucose as precursor using a hydrothermal method.

TL;DR: In this article, the direct chemiluminescence (CL) of sulfur and nitrogen co-doped carbon quantum dots (S,N-CQDs) induced by some common oxidants was investigated.

TL;DR: Tm 3+ /Yb 3+ co-doped transparent glass ceramics (GC) containing Sr 2 YF 7 nanocrystals were successfully manufactured by traditional melt-quenching technique as discussed by the authors.

TL;DR: In this article, the properties of glass were investigated for density, optical, photoluminescence and x-ray scintillation properties of calcium gadolinium silicoborate glass.

TL;DR: In this article, the first study on synthesis of water-soluble reduced fluorescent carbon dots (r-FCDs) by using lignosulfonate lignin as carbon source was presented.

TL;DR: In this article, a green-yellow single crystal Lu 3 Al 5 O 12 :Ce 3+ (LuAG:Ce) was grown through a floating zone method by an image furnace, which showed an excellent thermal stability, a lower quantum efficiency, and a broader photoluminescence excitation (PLE) spectrum compared with the polycrystalline powder phosphor.

TL;DR: In this article, a broad band near infrared (NIR) source was synthesized and investigated in view of their potential application as luminescent converters for high power broad band NIR sources.

TL;DR: In this article, the luminous efficacy and color rendering values of simulated warm white emitting PCLEDs comprising a dichromatic phosphor blend employing K2NbF7:Mn4+ or K2TaF7 :Mn 4+ as the red emitting component are calculated and compared to the performance of warm white emission PC LEDs comprising different commercial phosphors as red emitting components.

TL;DR: Li et al. as discussed by the authors proposed a garnet-type tellurate red-emitting phosphors Li 3 Gd 3(1- x ) Te 2 O 12 : x Eu 3+ ( x = 0.01-0.30) for near-UV chip-based white light-EMitting diode and display devices.

TL;DR: The role of surface modification and functionalization for improving the luminescence intensity, stability, aqueous dispersity/dispersibility and biocompatibility of rare earth-doped nanofluorides is discussed in this article.

TL;DR: In this paper, the formation of Co doped Nickel oxide nanoparticles in single phase without any impurity has been reported by microwave gel combustion method using citric acid as a chelating agent.

TL;DR: In this article, a multicolor luminescence investigation of potassium-zinc phosphate glasses activated with Eu 3+, Dy 3+, and Dy 3+ /Eu 3+, was performed by analyzing their Raman and photoluminescence spectra, and decay times.

TL;DR: In this article, a succession of thulium-doped zinc oxide (ZnO) nanostructures samples were prepared by sol-gel method using zinc acetate dihydrate, zinc nitrate pentahydrate and sodium hydroxide species with absolute ethanol as solvent.

TL;DR: In this paper, double perovskite Ca2MgWO6:Bi3+ (CMW:Bi 3+) yellow-emitting phosphor is synthesized by solid-state reaction method in air.

TL;DR: In this paper, the authors show that Nd 3+ -doped YVO 4 NPs can act as nanothermometers in the second biological window upon 808nm excitation.

TL;DR: In this article, the authors investigated the compared excited-state intramolecular proton transfer (ESIPT) mechanism of 2-acetylindan-1,3-dione (AID) in both non-polar (hexane) and polar (acetonitrile) solvents theoretically.

TL;DR: In this paper, a long lasting (afterglowing) luminescent material SrAl2O4: Eu2+, Dy3+ was prepared by high temperature solid-state reaction method.

TL;DR: The results gained from current inspection give an explicit visualization of the effects of captopril with ctDNA interaction, with UV–vis absorption, emission and time-resolved fluorescence spectroscopy suggest the non-covalent binding interaction between Captopril and ct DNA with binding constant value 5.47 × 103 M−1.

TL;DR: The results showed that delayed fluorescence is a tool that can bring completely new opportunities for detecting stress in plants caused by salt, and various limitation patterns in the photosynthetic efficiency of perennial ryegrass lawn varieties grown under salt stress conditions.

TL;DR: In this paper, blue photoluminescent WS2 quantum dots were synthesized using a simple top-down method from natural raw mineral tungsten disulfide via tip ultrasonication followed by centrifugation in a water-ethanol (0.7/0.3 ratio) as eco-friendly solvent.

TL;DR: In this article, a new optically stimulated luminescence (OSL) material was developed for dosimetry applications that is tissue equivalent and has high sensitivity to ionizing radiation, fast luminecence lifetime, and intrinsic neutron sensitivity.