Results 21 to 30 of about 23,831 (231)

TIME-RESOLVED LUMINESCENCE EXCITED WITH N2 LASER OF YAG:CE CERAMICS FORMED BY ELECTRON BEAM ASSISTED SYNTHESIS

Eurasian Physical Technical Journal, 2020
In this paper, an attempt to synthesize the phosphor using powerful hard radiation fluxes. White light-emitting diodes (LEDs) are considered a good lighting devices due to their unsurpassed qualities, such as energy saving and long service life.
Zh. Karipbayev, G. Alpyssova, D. Mussakhanov, V. Lisitsyn, A. Kukenova, A. Tulegenova   +5 more
doaj   +1 more source

Dissimilarity measure of local structure in inorganic crystals using Wasserstein distance to search for novel phosphors

Science and Technology of Advanced Materials, 2021
To efficiently search for novel phosphors, we propose a dissimilarity measure of local structure using the Wasserstein distance. This simple and versatile method provides the quantitative dissimilarity of a local structure around a center ion.
Shota Takemura, Takashi Takeda, Takayuki Nakanishi, Yukinori Koyama, Hidekazu Ikeno, Naoto Hirosaki   +5 more
doaj   +1 more source

Blue emission stimulated by Dy3+ transitions in KCaF3: A fluoride-based phosphor

Materials Letters: X
In this work, the luminescence characteristics of KCaF3:xDy3+ phosphors are examined. A solid-state method was used to synthesize the phosphors. KCaF3:xDy3+ phosphors with orthorhombic structure were confirmed by X-ray diffraction (XRD).
Vanthini Nelson Adoons, Thandeka Molefe, Nkosinathi Sangweni, Delicacy NtshaliNtshali, Sipho Nyawo   +4 more
doaj   +1 more source

The High-Temperature Synthesis of the Nanoscaled White-Light Phosphors Applied in the White-Light LEDs

Advances in Materials Science and Engineering, 2015
The white-light phosphors consisting of Dy3+ doped YPO4 and Dy3+ doped YP1-XVXO4 were prepared by the chemical coprecipitation method. After the 1200°C thermal treatment in the air atmosphere, the white-light phosphors with particle sizes around 90 nm ...
Hao-Ying Lu, Meng-Han Tsai
doaj   +1 more source

Enhanced Photocatalytic Degradation of Organic Pollutants in Wastewater Using Photocatalysts Coupled with Luminescent Materials

Chemical Engineering Transactions, 2017
The aim of this work was to study the effect of different luminescent materials (phosphors) as supports for visible light active N-doped TiO2 (N-TiO2) photocatalyst to enhanced photocatalytic activity.
V. Vaiano, O. Sacco, D. Sannino
doaj   +1 more source

Long Afterglow Green Phosphors Functionalized with Fe-N Doped TiO₂ for the Photocatalytic Removal of Emerging Contaminants

Chemical Engineering Transactions, 2015
The aim of this work was to remove oxytetracycline and atrazine using novel catalytic composites consisting of a visible light-active photocatalyst (Fe-N doped TiO2) supported on visible excited long afterglow aluminate-based phosphors (green phosphors ...
O. Sacco, V. Vaiano, C. Han, D. Sannino, D. Dionysiou, P. Ciambelli   +5 more
doaj   +1 more source

Co-Doping Effect of Mn²⁺ and Eu³⁺ on Luminescence in Strontiowhitlockite Phosphors

Molecules, 2023
A new series of Sr-based phosphates, Sr9−xMnxEu(PO4)7, were synthesized using the high-temperature solid-state method in air. It was found that these compounds have the same structure as strontiowhitlockite, which is a β-Ca3(PO4)2 (or β-TCP) structure ...
Ivan V. Nikiforov, Dmitry A. Spassky, Nataliya R. Krutyak, Roman Yu. Shendrik, Evgenia S. Zhukovskaya, Sergey M. Aksenov, Dina V. Deyneko   +6 more
doaj   +1 more source

Chrysoritis phosphor subsp. phosphor

, 2023
C. phosphor phosphor (Trimen 1864). Holotype: Iziko Museum. Type locality: “ Bashee River, Kaffraria ” (Eastern Cape Province). Conservation status: LC.
openaire   +2 more sources

A novel Sm3+-activated Li3BaSrLn3(MO4)8 [Ln = La, Gd, and Y; M = Mo and W] deep red-emitting phosphors for plant cultivation and white LEDs

Journal of Information Display, 2021
Deep red phosphor-based LEDs play a crucial role in plant growth applications, where the LED emission covers the phytochrome (Pr) absorption. In this context, a series of Sm3+-activated Li3BaSrLn3(MO4)8:Sm3+ [Ln = La Gd and Y; M = Mo and W] deep red ...
Marikumar Rajendran, Kasturi Singh, Sivakumar Vaidyanathan   +2 more
doaj   +1 more source

Synthesis and Optical Properties of Ce3+ Doped Gadolinium Silicate Phosphors [PDF]

, 2023
The present paper reports the optical properties of rare-earth-doped Gadolinium Silicate Phosphors. The Cerium Oxide (Ce3+) was used as rare-earth-doped.
Rao, Ch. Atchyutha, N. Bujji Babu, Ch. Atchyutha Rao, Babu, N. Bujji, K.V.R. Murthy, Murthy, K.V.R.   +5 more
core   +1 more source