Results 81 to 90 of about 112,673 (326)

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Pengaruh elemen gamifikasi terhadap motivasi pelajar menggunakan aplikasi quizizz [PDF]

, 2019
Pelajar generasi abad ke 21 sekarang lebih berminat belajar menggunakan gadjet atau alat-alat komunikasi canggih tanpa wayar yang berasaskan teknologi.
Abd Nasir, Nurathirah
core  

X-ray Anomalous Scattering of Diluted Magnetic Oxide Semiconductors: Possible Evidence of Lattice Deformation for High Temperature Ferromagnetism

, 2007
We have examined whether the Co ions crystallographically substitute on the Ti sites in rutile and anatase Ti_{1-x}$Co$_{x}$O$_{2-delta}$ thin films that exhibit room-temperature ferromagnetism.
Daisuke Okuyama, Hideaki Ishida, Hidemi Toyosaki, Masashi Kawasaki, Shinya Niioka, Tadashi Satoh, Takeshi Matsumura, Tomoteru Fukumura, Y. Waseda, Yasuhiro Yamada, Youichi Murakami   +10 more
core   +1 more source

Stable hydrosols for TiO2 coatings [PDF]

, 2010
The optimum processing parameters required to synthesize, by hydrolysis of titanium isopropoxide (TIP), highly stable hydrosols composed of nanoparticles of the smallest possible size, are deduced both from data available in literature and from our own ...
Alphonse, Pierre, Tendero, Claire, Varghese, Aneesha Mary   +2 more
core   +2 more sources

Porous Iridium Oxide Inverse Opal Catalysts Enable Efficient PEM Water Electrolysis

Advanced Materials, EarlyView.
Porous iridium‐based inverse opal (IrOx‐IO) structures are introduced as high‐performance, unsupported PEM‐WE anode catalysts. Their electrochemical behavior is analyzed through porosity/surface area tuning, voltage breakdown, and circuit modeling.
Sebastian Möhle, Kerolus Nasser Nagi Nasralla, Jakub Drnec, William Chèvremont, Peter Strasser   +4 more
wiley   +1 more source

Phonon quarticity induced by changes in phonon-tracked hybridization during lattice expansion and its stabilization of rutile TiO$_2$ [PDF]

, 2015
Although the rutile structure of TiO$_2$ is stable at high temperatures, the conventional quasiharmonic approximation predicts that several acoustic phonons decrease anomalously to zero frequency with thermal expansion, incorrectly predicting a ...
Abernathy, D. L., Fultz, B., Hellman, O., Kim, D., Lan, Tian, Li, C. W., Muñoz, J. A., Smith, H.   +7 more
core   +3 more sources

Hydrogen motion in rutile TiO2 [PDF]

Scientific Reports, 2017
AbstractUniaxial-stress experiments have been performed for the 3287- and 2445-cm−1 local vibrational modes assigned to the positive charge state of interstitial hydrogen $$({{\rm{H}}}_{i}^{+})$$ ( H
Hupfer, A. J., Monakhov, E. V., Svensson, B. G., Chaplygin, I., Lavrov, E. V.   +4 more
openaire   +2 more sources

Analysis of Photocatalytic Nitrogen Fixation on Rutile TiO$_2$(110) [PDF]

, 2017
Photocatalytic nitrogen fixation provides a promising route to produce reactive nitrogen compounds at benign conditions. Titania has been reported as an active photocatalyst for reduction of dinitrogen to ammonia; however there is little fundamental ...
Benjamin M. Comer, A. Medford
semanticscholar   +1 more source

Influence of Metal Oxide Interface Layers on the Thermochromic Properties of VO2 Thin Films Deposited by Magnetron Sputtering

Advanced Materials Interfaces, EarlyView.
This study investigates the thermochromic properties of VO2 deposited on aluminum doped zinc oxide precoated fused silica with Al2O3, TiO2, and WO3 as interface layers. The results indicate that the metal‐to‐insulator transition is highly influenced by the grains formed at the interface.
Eduard Llorens Balada, Eugen Stamate
wiley   +1 more source

Theoretical study on copper's energetics and magnetism in TiO2 polymorphs

, 2013
We carried out density functional theory calculations to model the electronic structure and the magnetic interactions in copper doped anatase and rutile titanium dioxide in order to shed light on the potential of these systems as magnetic oxides using ...
Assadi, M. Hussein. N., Hanaor, Dorian A. H.   +1 more
core   +1 more source