Results 81 to 90 of about 55,131 (281)

Impact of Rapid Thermal Annealing Under Various Temperatures on the Yttrium Oxide Nanoparticles

Annals of West University of Timisoara: Physics
In the present paper, the research was focused on the synthesis of Y2O3 nanoparticles (NPs) by a chemical method using yttrium nitrate hexahydrate, urea and ammonium hydroxide, deposition of the oxide precursors as thin films on silicon substrate, and ...
Matei Alina, Brîncoveanu Oana, Romanițan Cosmin, Pachiu Cristina, Țucureanu Vasilica   +4 more
doaj   +1 more source

Yttrium oxide as a Q-switcher for the near-infrared erbium-doped fiber laser

Nanophotonics, 2020
Yttrium oxide (Y2O3) has been widely used in metal-reinforced composites, microelectronics, waveguide lasers, and high-temperature protective coatings because of its good physical and photoelectric properties.
Liu Mengli, Liu Wenjun, Liu Ximei, Ouyang Yuyi, Hou Huanran, Lei Ming, Wei Zhiyi   +6 more
doaj   +1 more source

Laser operation of a Tm:Y₂O₃ planar waveguide

, 2013
We demonstrate the first Tm-doped yttria planar waveguide laser to our knowledge, grown by pulsed laser deposition. A maximum output power of 35 mW at 1.95 µm with 9% slope efficiency was achieved from a 12 µm-thick film grown on a Y3Al5O12 ...
Eason, Robert W., Mackenzie, Jacob I., Parsonage, Tina L., Sloyan, Katherine, Szela, Jakub   +4 more
core   +1 more source

Revisiting the synthesis of dimethyl carbonate from methanol and carbon dioxide

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The process for producing dimethyl carbonate (DMC) from carbon dioxide (CO2) and methanol is explored in this article. It provides an overview of the thermodynamics involved in DMC synthesis, discussing the challenges and potential solutions. The article highlights the reported use of catalysts and dehydrating agents to improve DMC yield and ...
Diego Alexander Santos Araque, Niloofar Mozaffari, Louis Fradette, Serge Kaliaguine   +3 more
wiley   +1 more source

Preparation, Characterization, and Activity of Y2O3-ZnO Complex Oxides for the Photodegradation of 2,4-Dinitrophenol

International Journal of Photoenergy, 2014
With strong adsorption selectivity and thermal stability, Y2O3 was added to ZnO to obtain Y2O3-ZnO complex oxides by a precipitation method. The Y2O3-ZnO complex oxides were characterized by X-ray diffraction, Raman spectroscopy, X-ray photoelectron ...
Tong-ming Su, Zu-zeng Qin, Hong-bing Ji, Yue-xiu Jiang   +3 more
doaj   +1 more source

Local Field effects on the radiative lifetime of emitters in surrounding media: virtual- or real-cavity model?

, 2005
For emitters embedded in media of various refractive indices, different macroscopic or microscopic theoretical models predict different dependencies of the spontaneous emission lifetime on refractive index.
Berman, Bloembergen, Born, Chang-Kui Duan, Crenshaw, de Vries, Kumar, Lamouche, Lavallard, Luks, Meltzer, Michael F. Reid, Rikken, Toptygin, Ushida, Wuister, Zhongqing Wang   +16 more
core   +1 more source

Challenges and Advancements in High‐Nickel Layered Oxides Cathode Material for Lithium‐Ion Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
As a representative high‐energy‐density cathode material for lithium‐ion batteries, NCM811 still encounters critical challenges. This review provides a comprehensive analysis of its failure mechanisms, summarizes recent modification strategies, and highlights the contributions of advanced characterization and simulation techniques to performance ...
Yunshan Zheng, Junfeng Li, Yijing Liu, Lanlan Feng, Wen Liu, LiLi Lin, Yiming Wang, Haoyang Peng, Jian Lu, Dong Zhou, Baohua Li   +10 more
wiley   +1 more source

Simple (YGa)2O3/F‐SnO2 Heterojunction‐Based Solar‐Blind Ultraviolet Photodetector Operable in Two Modes With Superb Performance

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Yttrium doping was proposed to expand the bandgap and inhibit the oxygen vacancies of Ga2O3 to form (YGa)2O3 alloy with reduced background carriers and trap centers. Beneficially, simple vertical‐structured (YGa)2O3/FTO heterojunction photodetectors exhibit superb performance with particularly low dark current and fast photoresponse in both self‐driven
Zebin Zhou, Xiang Chen, Hongyi Zhu, Jiaxing Mao, Fan Jiang, Yanhui Dong, Jian Chen, Yinmei Lu, Yunbin He   +8 more
wiley   +1 more source

The Microstructure and Electronic Properties of Yttrium Oxide Doped With Cerium: A Theoretical Insight

Frontiers in Chemistry, 2020
Trivalent Cerium (Ce3+) doped Yttrium Oxide (Y2O3) host crystal has drawn considerable interest due to its popular optical 5d-4f transition. The outstanding optical properties of Y2O3:Ce system have been demonstrated by previous studies but the ...
Meng Ju, Meng Ju, Jingjing Wang, Jing Huang, Chuanzhao Zhang, Yuanyuan Jin, Weiguo Sun, Shichang Li, Yunhong Chen   +8 more
doaj   +1 more source

Strong Pinning in High Temperature Superconductors

, 2002
Detailed measurements of the critical current density jc of YBa2Cu3O7 films grown by pulsed laser deposition reveal the increase of jc as function of the filmthickness.
A. Abal’oshev, A. Catana, A. I. Larkin, A. Schönenberger, A. Wahl, B. Dam, B. Dam, B. Dam, B. Roas, C. J. Liu, C. J. van der Beek, C. J. van der Beek, Ch. Gerber, Ch. Jooss, D. R. Nelson, D. R. Nelson, E. H. Brandt, E. Sheriff, F. C. Klaassen, F. C. Klaassen, G. Blatter, G. Kästner, I. Abalosheva, I. Abal’osheva, J. Gilchrist, J. Pearl, K. Verbist, L. A. Dorosinskiĭ, M. Hawley, M. Konczykowski, M. Konczykowski, M. V. Feigel’man, M. V. Feigel’man, M. V. Indenbom, P. Gierlowski, P. H. Kes, P. H. Kes, R. Griessen, R. Prozorov, S. Barbanera, S. J. Lewandowski, S. Kokkaliaris, T. I. Selinder, V. Hardy, V. M. Vinokur, Yu. N. Ovchinnikov   +45 more
core   +1 more source