Results 71 to 80 of about 96,119 (281)

Effect of the nature of dispersion medium on the CdTe/TGA nanocrystal formation in colloidal solutions and polymeric membranes

Semiconductor Physics, Quantum Electronics & Optoelectronics, 2020
In this work, physical and chemical properties of CdTe low-dimensional crystallites obtained by grinding or colloidal synthesis have been investigated. In particular, we have analyzed the photoluminescent characteristics of CdTe nanocrystals stabilized ...
O.A. Kapush, S.D. Boruk, O.S. Boruk, S.I. Budzulyak, B.N. Kulchytsky, O.G. Kosinov, L.I. Trishchuk, I.O. Mazarchuk, V.J. Morozovska, V.M. Dzhagan, S.E. Hatilov, D.V. Korbutiak   +11 more
doaj   +1 more source

Light emission from silicon with tin-containing nanocrystals

, 2015
Tin-containing nanocrystals, embedded in silicon, have been fabricated by growing an epitaxial layer of Si_{1-x-y}Sn_{x}C_{y}, where x = 1.6 % and y = 0.04 %, followed by annealing at various temperatures ranging from 650 to 900 degrees C.
Balling, Peter, Chevallier, Jacques, Gaiduk, Peter I., Hansen, John Lundsgaard, Jensen, Pia Bomholt, Julsgaard, Brian, Larsen, Arne Nylandsted, Roesgaard, Søren, Svane, Axel   +8 more
core   +2 more sources

Toughening β‐Ga2O3 via Mechanically Seeded Dislocations

Advanced Functional Materials, EarlyView.
β‐Ga2O3 is promising for next‐generation semiconductors but its brittleness limits flexible and high‐precision applications. Here, mechanically seeded dislocations introduced by surface deformation improved damage tolerance in (001) β‐Ga2O3. Nanoindentation and characterization show dislocations suppress cleavage cracks by enabling stable plastic ...
Zanlin Cheng, Jiawen Zhang, Peng Gao, Guosong Zeng, Xufei Fang, Wenjun Lu   +5 more
wiley   +1 more source

Simulation of copper nanocrystal plastic deformation at uniaxial tension [PDF]

Компьютерные исследования и моделирование, 2013
Computer simulation of plastic deformation of FCC copper nanocrystal in the process of uniaxial tension in a direction [001] is performed by methods of molecular dynamics and a static relaxation.
Timofey Anatolievich Zolotyh, Aleksandr Timofeevich Kosilov, Victor Vadimovich Ozherelyev   +2 more
doaj   +1 more source

Cassava Starch Films Containing Quinoa Starch Nanocrystals: Physical and Surface Properties

Foods, 2023
Quinoa starch nanocrystals (QSNCs), obtained by acid hydrolysis, were used as a reinforcing filler in cassava starch films. The influence of QSNC concentrations (0, 2.5, 5.0, 7.5 and 10%, w/w) on the film’s physical and surface properties was ...
Lía Ethel Velásquez-Castillo, Mariani Agostinetto Leite, Victor Jesús Aredo Tisnado, Cynthia Ditchfield, Paulo José do Amaral Sobral, Izabel Cristina Freitas Moraes   +5 more
doaj   +1 more source

Anomalous Suppression of Valley Splittings in Lead Salt Nanocrystals without Inversion Center

, 2011
Atomistic sp3d5s* tight-binding theory of PbSe and PbS nanocrystals is developed. It is demonstrated, that the valley splittings of confined electrons and holes strongly and peculiarly depend on the geometry of a nanocrystal. When the nanocrystal lacks a
A. N. Poddubny, B. Volkov, C. Delerue, F. Herman, G. Bir, H. Bilz, M. O. Nestoklon, S. V. Goupalov, W. Harrison   +8 more
core   +1 more source

Size-dependent bandgap and particle size distribution of colloidal semiconductor nanocrystals [PDF]

, 2017
A new analytical expression for the size-dependent bandgap of colloidal semiconductor nanocrystals is proposed within the framework of the finite-depth square-well effective mass approximation in order to provide a quantitative description of the quantum
A. G. Silva, A. V. N. C. Teixeira, Adachi S., Bányai L., D. L. Ferreira, Ekimov A. I., Ekimov A. I., Golubkov V. V., Golubkov V. V., Gross E. K. U., J. Bettini, J. C. L. Sousa, M. A. Schiavon, R. N. Maronesi, Éfros Al. L., Éfros Al. L.   +15 more
core   +2 more sources

Gram‐Scale Production of Iron Oxide Rubik‐Cube Nanoparticles: New Tools for the Clinical Translation of Magnetic Hyperthermia and Magnetic Particle Imaging

Advanced Functional Materials, EarlyView.
This work reports the first gram‐scale solvothermal synthesis of ‘Rubik's cube’ nanoparticles—cubic, dendritic multicore structures with tuneable sizes and exceptional magnetic heating performance. Featuring iron oxide single‐domain character, with low coercivity fields, high magnetization, and strong MPI signals, they enable viscosity‐independent ...
Giusy M. R. Rizzo, Niccolò Silvestri, Nabila Jarmouni, Helena Gavilán, Hamza Yakubu, Daniel Arenas‐Esteban, Sara Bals, Paola Parlanti, Mauro Gemmi, Ross Clark Prado, Anna Cristina S. Samia, Verónica Salgueiriño, Teresa Pellegrino   +12 more
wiley   +1 more source

Crystal Structure and Optical Properties of ZnO:Ce Nano Film

Molecules, 2022
ZnO and cerium-doped ZnO on a glass substrate have been prepared by the sol–gel method using the spin coating technique and water bath growth process. Ce-doping concentration on film structure, morphology, and optical properties is investigated.
Mei Xin
doaj   +1 more source

Carbon Supported CdSe Nanocrystals [PDF]

Journal of the American Chemical Society, 2008
Insights to the mechanism of CdSe nanoparticle attachment to carbon nanotubes following the hot injection method are discussed. It was observed that the presence of water improves the nanotube coverage while Cl containing media are responsible for the shape transformation of the nanoparticles and further attachment to the carbon lattice.
Juárez B.H., Meyns M., Chanaewa A., Cai Y., Klinke C., Weller H.   +5 more
openaire   +6 more sources