Results 71 to 80 of about 18,610,504 (202)

Fabrication of gallium nitride waveguide resonators by high-power impulse magnetron sputtering at room temperature

open access: yesAPL Photonics
In this work, we demonstrate gallium nitride (GaN) waveguide resonators by sputtering amorphous GaN films on the silicon-based substrate. With the aid of high-power impulse magnetron sputtering (HiPIMS), high-quality, high-deposition-rate, and high ...
Shih-Hsin Wu   +4 more
doaj   +1 more source

Formation and Microwave Losses of Hydrides in Superconducting Niobium Thin Films Resulting from Fluoride Chemical Processing

open access: yesAdvanced Functional Materials, Volume 34, Issue 36, September 4, 2024.
This study provides comprehensive materials characterization of niobium (Nb) hydrides formed in Nb thin films as a function of fluoride chemical treatments that are commonly employed in the fabrication of superconducting qubits. This work provides insight into the formation of Nb hydrides and their role in microwave loss, thus guiding ongoing efforts ...
Carlos G. Torres‐Castanedo   +20 more
wiley   +1 more source

High power impulse magnetron sputtering using a rotating cylindrical magnetron

open access: yes, 2010
Both the industrially favorable deposition technique, high power impulse magnetron sputtering (HIPIMS), and the industrially popular rotating cylindrical magnetron have been successfully combined.
S. Mahieu   +11 more
core   +1 more source

Large Mid‐Infrared Magneto‐Optic Response from Doped Cadmium Oxide at Its Epsilon‐Near‐Zero Frequency

open access: yesAdvanced Optical Materials, Volume 12, Issue 25, September 3, 2024.
The high plasmonic quality of doped CdO is shown to enhance its magneto‐optic response near the epsilon‐near‐zero frequency, leading to a large peak in the Verdet constant that can be tuned throughout the mid‐infrared. The ability to deposit CdO on Si with no loss in performance makes this material a promising platform for integrated mid‐infrared ...
Jonathon R. Schrecengost   +10 more
wiley   +1 more source

The influence of superimposed DC current on electrical and spectroscopic characteristics of HiPIMS discharge

open access: yesAIP Advances, 2018
The electrical characteristics and spectroscopic properties have been comprehensively investigated in a DC superimposed high power impulse magnetron sputtering (DC-HiPIMS) deposition system in this paper.
Xiao Zuo   +4 more
doaj   +1 more source

Reactive DC Sputtered TiO2 Electron Transport Layers for Cadmium‐Free Sb2Se3 Solar Cells

open access: yesAdvanced Energy Materials, Volume 14, Issue 34, September 13, 2024.
Evolution of Sb2Se3 heterojunction devices away from CdS electron transport layers to wide bandgap metal oxide alternatives is a critical target in the development of this emerging photovoltaic material. The dependence of TiO2 processing conditions on the series resistance of complete Sb2Se3 devices is demonstrated.
Christopher H. Don   +11 more
wiley   +1 more source

Optimizing SiGe–SiO2 Visible–Short‐Wave Infrared Photoresponse by Modulating Interplay Between Strain and Defects Through Annealing

open access: yesAdvanced Photonics Research, Volume 5, Issue 8, August 2024.
The beneficial effect of rapid‐like furnace annealing (FA) on photoconductive response of SiGe nanocrystals (NCs)‐based structures is revealed by comparison to rapid thermal annealing. FA structures present photocurrent spectra with enhanced intensity of peaks due to strain, explained by the short annealing time for NC formation without reaching ...
Muhammad Taha Sultan   +7 more
wiley   +1 more source

Discharge Physics of High Power Impulse Magnetron Sputtering [PDF]

open access: yes, 2010
High power impulse magnetron sputtering (HIPIMS) is pulsed sputtering where the peak power exceeds the time-averaged power by typically two orders of magnitude.
Anders, Andre, André Anders
core   +1 more source

High‐Performance Thermochromic VO2‐Based Coatings Deposited by Roll‐to‐Roll High‐Power Impulse Magnetron Sputtering

open access: yesEnergy Technology, Volume 12, Issue 6, June 2024.
Thermochromic windows have potential for energy savings in buildings. Herein, VO2‐based coatings on ultrathin flexible glass deposited using a reactive high‐power impulse magnetron sputtering with an oxygen flow control in a pilot‐scale roll‐to‐roll deposition device are demonstrated.
Jolanta Szelwicka   +6 more
wiley   +1 more source

Integration fabrication of polyimide composite films for aerospace applications

open access: yesSmartMat, Volume 5, Issue 3, June 2024.
ZnO/CuNi‐polyimide composite films show remarkable AO and irradiation durability, sufficient electrostatic dissipation capacity, and mechanical robustness. The unique interfacial architecture regulation by multi‐technology integration shows potential for aerospace applications and deployment.
Yifan Zhang   +12 more
wiley   +1 more source

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