Results 11 to 20 of about 93,390 (283)

Narrow UVB-Emitted YBO3 Phosphor Activated by Bi3+ and Gd3+ Co-Doping

open access: yesNanomaterials, 2023
Y0.9(GdxBi1−x)0.1BO3 phosphors (x = 0, 0.2, 0.4, 0.6, 0.8, and 1.0, YGB) were obtained via high-temperature solid-state synthesis. Differentiated phases and micro-morphologies were determined by adjusting the synthesis temperature and the activator ...
Zhimin Yu, Yang Yang, Jiaming Sun
doaj   +1 more source

Crystal structure, morphology and enhancement of luminescence properties of Cr3+-doped KZnF3 phosphor by using a HF-free hydrothermal method with different chromium sources

open access: yesMaterials Research Express, 2023
In this study, a series of near-infrared (NIR) KZnF _3 :Cr ^3+ phosphors was prepared by different chromium sources using a HF-free hydrothermal method.
Yifan Yang   +7 more
doaj   +1 more source

Facile Synthesis of Highly Emissive All-Inorganic Manganese Bromide Compounds with Perovskite-Related Structures for White LEDs

open access: yesMolecules, 2022
Lead-free all-inorganic halide materials with different Mn2+-based crystal structures (Cs3MnBr5 and CsMnBr3) were obtained using a convenient synthetic method. Cs3MnBr5 had a bright green emission (522 nm), with a unique single-exponential lifetime (τavg
Ping Gao   +7 more
doaj   +1 more source

ADVANCED TECHNOLOGY OF LUMINOPHOR SCREENS FOR SOLID RADIOLUMINESCENT LIGHT SOURCES

open access: yesDoklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, 2019
The article observes different methods of coating the phosphor screens on the tritiated titanium matrices for creating the solid-state radioluminescent light sources (SRLS).
E. V. Zelenina   +3 more
doaj   +1 more source

The preparation of luminescent and reversible thermochromic Mn-doped Ca-Zn-Al-O inorganic materials

open access: yesJournal of Asian Ceramic Societies, 2022
In this research, we reported the thermochromic and luminescent behaviors of Ca14Zn6Al10-xMnxO35 (x = 0,0.5,1.0,1.5,2) garnet materials prepared by a high-temperature solid-state reaction method. Thermochromism of all samples showed gradual tunability of
Vorrada Loryuenyong   +4 more
doaj   +1 more source

The Effects of TiO2 Diffuser-Loaded Encapsulation on Corrected Color Temperature Uniformity of Remote Phosphor White LEDs

open access: yesApplied Sciences, 2019
With the development of high-efficiency and high-power LEDs, they have become the most energy-efficient and environmentally friendly artificial light source. Phosphor-converted white LEDs are currently mainstream in the market.
Yung-Fang Chou   +3 more
doaj   +1 more source

Structural metamorphosis and photophysical properties of thermostable nano- and microcrystalline lanthanide polymer with flexible coordination chains

open access: yesScience and Technology of Advanced Materials, 2023
Luminescent lanthanide coordination polymer crystals (LCPCs) represent an area of growing interest in materials chemistry owing to their unique and tailorable functional properties. The LCPCs provide a high level of structural tunability, including size-
Takayuki Nakanishi   +8 more
doaj   +1 more source

Europium doped di-calcium magnesium di-silicate orange–red emitting phosphor by solid state reaction method

open access: yesJournal of Radiation Research and Applied Sciences, 2015
A new orange–red europium doped di-calcium magnesium di-silicate (Ca2MgSi2O7:Eu3+) phosphor was prepared by the traditional high temperature solid state reaction method. The prepared Ca2MgSi2O7:Eu3+ phosphor was characterized by X-ray diffractometer (XRD)
Ishwar Prasad Sahu   +2 more
doaj   +1 more source

Optical Model of Laminated Remote Phosphor Films and Its Application in White LED

open access: yesAdvances in Condensed Matter Physics, 2019
Based on Mie scattering and Monte Carlo ray tracing method, the transmission process of light in the remote phosphor film is described and the optical model of red and green laminated phosphor films is constructed.
Yong-Hao Chen   +5 more
doaj   +1 more source

Development of Red Exciplex for Efficient OLEDs by Employing a Phosphor as a Component

open access: yesFrontiers in Chemistry, 2019
Exciplexes are ideal candidates as effective thermally activated delayed fluorescence (TADF) emitters. However, efficient orange and red TADF exciplexes have been reported seldomly, because their significant non-radiative (NR) decay of excited states ...
Ming Zhang   +9 more
doaj   +1 more source

Home - About - Disclaimer - Privacy