Results 71 to 80 of about 53,277 (339)

State-of-the-art Nanofabrication in Catalysis

CHIMIA, 2017
We present recent developments in top–down nanofabrication that have found application in catalysis research. To unravel the complexity of catalytic systems, the design and use of models with control of size, morphology, shape and inter-particle
Waiz Karim, Simon A. Tschupp, Juan Herranz, Thomas J. Schmidt, Yasin Ekinci, Jeroen A. van Bokhoven   +5 more
doaj   +1 more source

High efficiency and low absorption Fresnel compound zone plates for hard X-ray focusing

, 2005
Circular and linear zone plates have been fabricated on the surface of silicon crystals for the energy of 8 keV by electron beam lithography and deep ion plasma etching methods.
Aristov, V., Ishikawa, T., Isoyan, A., Kondratenkov, M., Kuyumchyan, A., Shulakov, E., Snigirev, A., Snigireva, I., Souvorov, A., Tamasaku, K., Trouni, K., Yabashi, M.   +11 more
core   +1 more source

Exploiting Two‐Photon Lithography, Deposition, and Processing to Realize Complex 3D Magnetic Nanostructures

Advanced Functional Materials, EarlyView.
Two‐photon lithography (TPL) enables 3D magnetic nanostructures with unmatched freedom in geometry and material choice. Advances in voxel control, deposition, and functionalization open pathways to artificial spin ices, racetracks, microrobots, and a number of additional technological applications.
Joseph Askey, Arjen van den Berg, Sandra Ruiz Gomez, Claire Donnelly, Dirk Grundler, Sam Ladak   +5 more
wiley   +1 more source

Two-photon diffraction and quantum lithography [PDF]

, 2001
We report a proof-of-principle experimental demonstration of quantum lithography. Utilizing the entangled nature of a two-photon state, the experimental results have bettered the classical diffraction limit by a factor of two.
A. Einstein, A. N. Boto, A. V. Burlakov, A. Yariv, C. Fischer, D. N. Klyshko, D. V. Strekalov, E. Hecht, M. O. Scully, Maria V. Chekhova, Milena D'Angelo, T. B. Pittman, T. E. Keller, U. Rathe, Y.-H. Kim, Yanhua Shih   +15 more
core   +2 more sources

Spatially Resolved Click Patterning of Dyes on Graphene for 2D Hybrids with Regiotunable Fluorescence

Advanced Functional Materials, EarlyView.
Well‐structured graphene hybrid architectures featuring spatially resolved fluorescent properties represent a promising but so‐far elusive synthetic target. A robust and straightforward method for fabricating well‐organized graphene‐dye hybrid nanoassemblies through a combination of reductive patterning and conventional click chemistry is presented ...
Sabrin Al‐Fogra, Bowen Yang, Boris Morozov, Filip Božinović, Elena A. Mack, Sijia Feng, Evgeny A. Kataev, Norbert Jux, Dirk M. Guldi, Heiko Weber, Frank Hauke, Andreas Hirsch, Tao Wei   +12 more
wiley   +1 more source

Estimation of the Number of Quantum Dots Immobilized on an Ultra-flat Au Surface

Nanoscale Research Letters, 2017
Quantum dots (QDs) were immobilized on an ultra-flat Au surface by using amide binding between the carboxyl groups on the QDs and the amino groups of the self-assembled monolayer on the surface.
Hiroki Ito, Atsushi Iio, Katsutoshi Tokuhara, Hiroyuki Sakaue, Yutaka Kadoya, Hitoshi Suzuki   +5 more
doaj   +1 more source

Controlled synthesis of periodic arrays of ZnO nanostructures combining e-beam lithography and solution-based processes leveraged by micro X-ray fluorescence spectroscopy

Micro and Nano Engineering, 2020
In this work, a comprehensive study on how to combine purely chemical, bottom-up solution-based synthesis with advanced e-beam lithography for the controllable production of ZnO-nanostructure periodic arrays on Si and SiO2 substrates is presented.
G.P. Papageorgiou, A.G. Karydas, G. Papageorgiou, V. Kantarelou, E. Makarona   +4 more
doaj   +1 more source

An electron Talbot interferometer

, 2008
The Talbot effect, in which a wave imprinted with transverse periodicity reconstructs itself at regular intervals, is a diffraction phenomenon that occurs in many physical systems.
Alexander D Cronin, Bates W J, Benjamin J McMorran, Bhattacharya J C, Goldstein J I, Gronniger G, Patorski K, Spence J C H, Talbot H F   +8 more
core   +1 more source

A Scalable, Durable, Fire‐Safe All‐Day Passive Radiative Cooling Coating for Sustainable Buildings

Advanced Functional Materials, EarlyView.
This study reports a scalable, durable coating that combines a fire‑retardant copolymer adhesive, hollow glass microspheres, and boron oxide to achieve passive radiative cooling with over 94% solar reflectance and >95% mid‑infrared emissivity. The coating maintains performance after UV and rain exposure and exhibits UL‑94 V‑0 fire resistance, enabling ...
Zhewen Ma, Yuanhao Feng, Alex Y. Song, Toan Dinh, Min Hong, John Bell, Boyou Hou, Pingan Song, Wei Zheng   +8 more
wiley   +1 more source

High aspect ratio silicon structures by Displacement Talbot lithography and Bosch etching

, 2017
Despite the fact that the resolution of conventional contact/proximity lithography can reach feature sizes down to ~0.5-0.6 micrometers, the accurate control of the linewidth and uniformity becomes already very challenging for gratings with periods in ...
Dais, Christian, Jefimovs, Konstantins, Kagias, Matias, Romano, Lucia, Solak, Harun, Stampanoni, Marco, Vila-Comamala, Joan, Wang, Li, Wang, Zhentian   +8 more
core   +1 more source