scholarly journals Hydrothermal Synthesis of PZT Crystalline Powder and Piezoelectric Property of Ceramics

1990 ◽  
Vol 98 (1134) ◽  
pp. 150-155 ◽  
Author(s):  
Takashi ICHIHARA ◽  
Takaaki TSURUMI ◽  
Kiyoshi ASAGA ◽  
Kyung Hee Lee ◽  
Masaki DAIMON
Keyword(s):  
Hydrothermal Synthesis ◽  
Piezoelectric Property ◽  
Crystalline Powder

Hydrothermal synthesis of MoS 2 nanoflowers and their capacitive property

2019 ◽  
Vol 14 (5) ◽  
pp. 493-495 ◽  
Author(s):  
Qinghua Yang ◽  
Chunni Xiao ◽  
Bingbing Chen ◽  
Lin Ma ◽  
Limei Xu
Keyword(s):  
Hydrothermal Synthesis ◽  
Capacitive Property

Hydrothermal Synthesis and Solid-State Laser Refrigeration of Ytterbium-Doped Potassium Lutetium Fluoride (KLF) Microcrystals

2020 ◽  
Author(s):  
Xiaojing Xia ◽  
Anupum Pant ◽  
Xuezhe Zhou ◽  
Elena Dobretsova ◽  
Alex Bard ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Solid State ◽  
Information Science ◽  
Point Group ◽  
Solid State Laser ◽  
Lanthanide Ions ◽  
Group Symmetry ◽  
Luminescence Spectra ◽  
Crystalline Phases ◽  
State Laser

Fluoride crystals, due to their low phonon energies, are attractive hosts of trivalent lanthanide ions for applications in upconverting phosphors, quantum information science, and solid-state laser refrigeration. In this article, we report the rapid, low-cost hydrothermal synthesis of potassium lutetium fluoride (KLF) microcrystals for applications in solid-state laser refrigeration. Four crystalline phases were synthesized, namely orthorhombic K<sub>2</sub>LuF<sub>5</sub> (Pnma), trigonal KLuF<sub>4</sub> (P3<sub>1</sub>21), orthorhombic KLu<sub>2</sub>F<sub>7</sub> (Pna2<sub>1</sub>), and cubic KLu<sub>3</sub>F<sub>10</sub> (Fm3m), with each phase exhibiting unique microcrystalline morphologies. Luminescence spectra and emission lifetimes of the four crystalline phases were characterized based on the point-group symmetry of trivalent cations. Laser refrigeration was measured by observing both the optomechanical eigenfrequencies of microcrystals on cantilevers in vacuum, and also the Brownian dynamics of optically trapped microcrystals in water. Among all four crystalline phases, the most significant cooling was observed for 10%Yb:KLuF<sub>4</sub> with cooling of 8.6 $\pm$ 2.1 K below room temperature. Reduced heating was observed with 10%Yb:K<sub>2</sub>LuF<sub>5</sub>

Exploring the characterization of Ni doped MgO nanoparticles using co-precipitation method

2020 ◽  
Vol 3 (1) ◽  
pp. 30-33
Author(s):  
Muthulakshmi M ◽  
Madhumitha G
Keyword(s):  
Magnesium Oxide ◽  
Analytical Techniques ◽  
Nickel Chloride ◽  
Precipitation Method ◽  
Crystalline Powder ◽  
High Melting Point ◽  
Design Synthesis ◽  
Mgo Nanoparticles ◽  
Co Precipitation

Nanotechnology is a field of applied science focused on design, synthesis and characterization of nanomaterials. The nickel and magnesium have improved their applications in transparent electrodes and nano electronics. In addition, magnesium oxide has moisture resistance and high melting point properties. In the present work has been carried out in the development of green crystalline powder of nickel doped magnesium oxide nanoparticles by Co-precipitation method, from the mixture of nickel chloride and magnesium chloride with KOH as solvent. From the XRD results, crystalline size of the particle can be observed. Spherical structure of Ni doped MgO nanoparticles were indicated by SEM results and powdered composition of samples were obtained from FTIR. EDAX represents the peak composition of the nanoparticle. The above analytical techniques have confirmed that the Ni doped MgO nanoparticles obtained from the mixture of NiCl2 and MgCl2.

Hydrothermal Synthesis and Photocatalytic Properties of Cu-doped BiVO4 Microsheets

2013 ◽  
Vol 28 (3) ◽  
pp. 287-294 ◽  
Author(s):  
Guo-Cong LIU ◽  
Zhen JING ◽  
Xi-Bing ZHANG ◽  
Xian-Feng LI ◽  
Hong LIU
Keyword(s):  
Hydrothermal Synthesis ◽  
Photocatalytic Properties

Study on Sol-hydrothermal Synthesis of TiO2 Nanoparticles and their Photoelectric Properties Sensitized by Dye

2009 ◽  
Vol 24 (6) ◽  
pp. 1110-1114 ◽  
Author(s):  
Ji-Yuan ZHANG ◽  
Han-Min TIAN ◽  
Zhi-Peng TIAN ◽  
Xiang-Yan WANG ◽  
Tao YU ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Photoelectric Properties
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