Results 81 to 90 of about 11,181,629 (286)

High‐Temperature Persistent Luminescence and Anti‐Thermal Quenching in LiGa5O8 by Trap Engineering

Advanced Science, EarlyView.
Cu/Zn co‐doping creates deep and thermally stable traps in LiGa5O8, enabling enhanced high‐temperature persistent luminescence, anti‐thermal‐quenching emission, and dynamic blue‐to‐red color evolution. ABSTRACT High‐temperature luminescent materials are essential for applications in displays, information storage, anti‐counterfeiting, and extreme ...
Yuchen Wang, Yilong Fan, Jianhua Liu, Jin Zhang, Dingling Xiong, Tengxiang Long, Lina Su, Chao Sun, Hao Song, Pengpeng Dai, Jingui Duan, Ling Huang   +11 more
wiley   +1 more source

Sol-Gel Synthesis, X-Ray Diffraction Studies, and Electric Conductivity of Sodium Europium Silicate

Journal of Chemistry, 2013
Sodium europium silicate, NaEu9(SiO4)6O2, with apatite structure has been obtained and studied using X-ray diffraction and SEM. It has been shown that sodium sublimation does not take place upon synthesis by the sol-gel method.
Ekaterina V. Borisova, Alexey V. Ignatov, Eugeni I. Get'man, Stanislav N. Loboda, Lyudmyla I. Ardanova, Lyudmila V. Pasechnik, Vitaly S. Ponurovsky   +6 more
doaj   +1 more source

Rietveld Schröderhuis

, 1924
North facade on Prins Hendriklaan street; with horizontal and vertical accents in primary colors, front door; In 1924, having reconstructed four buildings, Rietveld obtained his first comprehensive architectural commission.
Rietveld, Gerrit Thomas
core  

Relaxor Ferroelectricity Enables Enhanced Thermoelectric Performance in In2Se3‐Alloyed GeTe

Advanced Science, EarlyView.
A non‐equimolar In3+/Se2− alloying strategy creates Ge vacancies in GeTe, inducing relaxor ferroelectricity that broadens the low thermal conductivity window. Simultaneously, cubic phase stabilization broadens optimal electrical transport, achieving an average zT > 1.0 over 330–625 K.
Yuting Zhang, Yang Li, Jianguo Chen, Kai Guo, Jun Luo, Jiye Zhang   +5 more
wiley   +1 more source

Rietveld refinement using Debye-Scherrer film techniques

, 1996
The advent of modern diffractometers has overcome the old film techniques that were used during the past years. One reason is that computer-controlled diffractometers made available data in a formal ready for the analyses, and the intensities obtained do
Aldrighetti S., Gualtieri A., Lutterotti L.   +2 more
core   +1 more source

Solvent Oxidation‐Directed Synthesis of Highly Crystalline Iron Oxide Nanoparticles With Near‐Bulk Magnetization

Advanced Science, EarlyView.
Controlled oxidation of benzyl ether is established as a key synthetic parameter in the thermal decomposition of iron(III) acetylacetonate. Oxygenated solvent species alter precursor coordination and nucleation–growth kinetics, producing highly crystalline, magnetite‐rich nanoparticles with tunable size, controlled morphology, and near‐bulk ...
Lukas Hertle, Valentin Gantenbein, Joaquim Llacer‐Wintle, Mingchen Ma, Ziyu Li, Pu Luo, Zhengwei Tan, Fei Chen, Chen Chen, Chuanyi Wu, Chenxin Gao, Chenyi Zhou, Carlos Franco, Pere Bruna, Josep Puigmartí‐Luis, Xiang‐Zhong Chen, Bradley J. Nelson, Salvador Pané   +17 more
wiley   +1 more source

Green synthesis of ultrafine zinc oxide nanoparticles for photocatalytic degradation of methylene blue dye: Optimization and kinetic studies

Results in Engineering
Zinc oxide nanoparticles (ZnO NPs) were synthesized using Phyllanthus acidus leaf extract by means of its reduction and stabilization tendency. The prepared ZnO NPs were systematically characterized by X-ray diffraction, Rietveld refinement, Brunauer ...
Muthusamy Kandasamy, Santhanakrishnan Suresh, Perumal Rameshkumar, Rajendran Jayasree, Panneerselvam Sathishkumar, Prem Gunnasegaran, Niraj S Topare, Sekar Thambidurai, Jemini Arumugam, Rajendran Jothilakshmi, Nalandhiran Pugazhenthiran   +10 more
doaj   +1 more source

Stabilized Cubic GeTe With Matched Grain‐Boundary Networks and Band Convergence for High‐Performance Dual‐Mode Thermoelectric Devices

Advanced Science, EarlyView.
I‐doping stabilizes the cubic phase of GeTe and generates “electron‐transparent, phonon‐blocking” grain boundary networks while inducing valence‐band convergence. This synergistic structural‐electronic design enables effective electron‐phonon decoupling, achieving an exceptional average zTave of ∼1.62, a peak zT of ∼2.2, and enhanced mechanical ...
Xiaobo Tan, Xuri Rao, Huangshui Ma, Jiaxing Luo, Fan Feng, Zijian Lin, Ruiheng Li, Maoji Tian, Siqi Huo, Min Hong, Ran Ang   +10 more
wiley   +1 more source

Measurements of Residual Stresses in Cold-Rolled 304 Stainless Steel Plates Using X-Ray Diffraction with Rietveld Refinement Method

Atom Indonesia, 2015
The determination of the residual stresses using X-ray powder diffraction in a series of cold-rolled 304 stainless steel plates, deforming 0, 34, 84, 152, 158, 175 and 196 % reduction in thickness has been carried out.
Parikin , P. Killen , A. Rafterry
doaj   +1 more source

Phase Transition and Phase Fraction Analysis Using Rietveld Refinement

Rietveld refinement has become an essential tool for the quantitative analysis of crystal structures in polycrystalline systems using X-ray diffraction data.
Muhammad Sheeraz, Chang Won Ahn, Gwangbo Sim, Sung-lae Cho, Hwan Min Kim   +4 more
core   +1 more source