scholarly journals General Synthesis of Ordered Mesoporous Rare-Earth Orthovanadate Thin Films and Their Use as Photocatalysts and Phosphors for Lighting Applications

2019 ◽  
Vol 2 (2) ◽  
pp. 1063-1071 ◽  
Author(s):  
Christian Reitz ◽  
Bernd Smarsly ◽  
Torsten Brezesinski
Keyword(s):  
Thin Films ◽  
Rare Earth ◽  
Ordered Mesoporous ◽  
General Synthesis

Easy and General Synthesis of Large-Sized Mesoporous Rare-Earth Oxide Thin Films by ′Micelle Assembly′

2015 ◽  
Vol 10 (12) ◽  
pp. 2590-2593 ◽  
Author(s):  
Yunqi Li ◽  
Bishnu Prasad Bastakoti ◽  
Masataka Imura ◽  
Pengcheng Dai ◽  
Yusuke Yamauchi
Keyword(s):  
Thin Films ◽  
Rare Earth ◽  
Rare Earth Oxide ◽  
Oxide Thin Films ◽  
General Synthesis

scholarly journals Room Temperature Magnetic Rare-Earth Iron Garnet Thin Films with Ordered Mesoporous Structure

2013 ◽  
Vol 25 (12) ◽  
pp. 2527-2537 ◽  
Author(s):  
Christian Suchomski ◽  
Christian Reitz ◽  
Celia T. Sousa ◽  
Joao P. Araujo ◽  
Torsten Brezesinski
Keyword(s):  
Thin Films ◽  
Rare Earth ◽  
Room Temperature ◽  
Mesoporous Structure ◽  
Ordered Mesoporous ◽  
Iron Garnet ◽  
Magnetic Rare Earth

ChemInform Abstract: Room Temperature Magnetic Rare-Earth Iron Garnet Thin Films with Ordered Mesoporous Structure.

ChemInform ◽  
2013 ◽  
Vol 44 (35) ◽  
pp. no-no
Author(s):  
Christian Suchomski ◽  
Christian Reitz ◽  
Celia T. Sousa ◽  
Joao P. Araujo ◽  
Torsten Brezesinski
Keyword(s):  
Thin Films ◽  
Rare Earth ◽  
Room Temperature ◽  
Mesoporous Structure ◽  
Ordered Mesoporous ◽  
Iron Garnet ◽  
Magnetic Rare Earth

Preferential Orientation of Photochromic Gadolinium Oxyhydrides

2020 ◽  
Author(s):  
Elbruz Murat Baba ◽  
Jose Montero ◽  
Dmitrii Moldarev ◽  
Marcos V. Moro ◽  
Max Wolff ◽  
...  
Keyword(s):  
Thin Films ◽  
Grain Size ◽  
Rare Earth ◽  
Preferential Orientation ◽  
Reactive Magnetron ◽  
Flow Ratio ◽  
Deposition Pressure ◽  
Step Process ◽  
Oxidation In Air ◽  
Key Parameter

<p>We report preferential orientation control in photochromic gadolinium oxyhydride (GdHO) thin films deposited by a two-step process. Gadolinium hydride (GdH<sub>2-x</sub>) films were grown by reactive magnetron sputtering, followed by oxidation in air. The preferential orientation, grain size, anion concentrations, and photochromic response of the films are strongly dependent on the deposition pressure. GdHO films show preferential orientation along the [100] direction and exhibit photochromism when synthesized at deposition pressures up to 5.8 Pa and. The photochromic contrast is larger than 20 % when the films are deposited below 2.8 Pa with 0.22 H<sub>2</sub>/Ar flow ratio. We argue that the degree of preferential orientation defines the oxygen concentration which is known to be a key parameter for photochromism in rare-earth oxyhydride thin films. The experimental observations described above are explained by the oxidation-induced decrease of the grain size as a result of the increase of the deposition pressure of the sputtering gas. </p>

Interdiffusion Induced High Coercivity of Rare-Earth Free Alnico Thin Films

2019 ◽  
Author(s):  
Xiao Han ◽  
Hoyun Won ◽  
Minyeong Choi ◽  
Liping Guo ◽  
Zhongqi Liu ◽  
...  
Keyword(s):  
Thin Films ◽  
Rare Earth ◽  
High Coercivity

scholarly journals High Pressure X-ray Diffraction as a Tool for Designing Doped Ceria Thin Films Electrolytes

Coatings ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 724
Author(s):  
Sara Massardo ◽  
Alessandro Cingolani ◽  
Cristina Artini
Keyword(s):  
Thin Films ◽  
High Pressure ◽  
Rare Earth ◽  
Ionic Conductivity ◽  
Bulk Material ◽  
Threshold Temperature ◽  
Doped Ceria ◽  
X Ray Diffraction ◽  
X Ray ◽  
Rare Earth Doped

Rare earth-doped ceria thin films are currently thoroughly studied to be used in miniaturized solid oxide cells, memristive devices and gas sensors. The employment in such different application fields derives from the most remarkable property of this material, namely ionic conductivity, occurring through the mobility of oxygen ions above a certain threshold temperature. This feature is in turn limited by the association of defects, which hinders the movement of ions through the lattice. In addition to these issues, ionic conductivity in thin films is dominated by the presence of the film/substrate interface, where a strain can arise as a consequence of lattice mismatch. A tensile strain, in particular, when not released through the occurrence of dislocations, enhances ionic conduction through the reduction of activation energy. Within this complex framework, high pressure X-ray diffraction investigations performed on the bulk material are of great help in estimating the bulk modulus of the material, and hence its compressibility, namely its tolerance toward the application of a compressive/tensile stress. In this review, an overview is given about the correlation between structure and transport properties in rare earth-doped ceria films, and the role of high pressure X-ray diffraction studies in the selection of the most proper compositions for the design of thin films.

General Synthesis of Ordered Mesoporous Carbonaceous Hybrid Nanostructures with Molecularly Dispersed Polyoxometallates

2021 ◽  
Author(s):  
Chaoliang Tan ◽  
Chunhong Chen ◽  
Shanjun Mao ◽  
Zhe Wang ◽  
Yiyao Ge ◽  
...  
Keyword(s):  
Hybrid Nanostructures ◽  
Ordered Mesoporous ◽  
General Synthesis
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