Results 61 to 70 of about 6,652 (220)

High Quality Antimony‐Doped n‐Type Silicon Wafers for Solar Cell Applications

open access: yesSolar RRL, Volume 9, Issue 17, September 2025.
This study investigates industrial antimony‐doped silicon wafers grown by the recharged Czochralski method. The wafers show high and uniform quality, with bulk lifetimes near theoretical Auger limits at injection levels close to maximum power point. Phosphorus gettering improves the lower‐quality regions.
Afsaneh Kashizadeh   +8 more
wiley   +1 more source

Gettering of Pd to implantation-induced nanocavities in Si

open access: yes, 2015
The gettering of Pd to nanocavities in Si for implantation doses ranging from 5×10¹³ to 1×10¹⁵ cm¯² and annealing temperatures ranging from 750 to 1050 °C was investigated using Rutherford backscattering and cross-sectional transmission electron ...
Brett, D. A.   +3 more
core   +1 more source

Spheromak Experiment Using Separate Guns For Formation And Sustainment [PDF]

open access: yes, 1996
An experiment is described that incorporates the use of separate magnetized plasma guns for formation and sustainment of a spheromak. It is shown that energy coupling efficiency approaches unity if the gun and spheromak are of comparable size.
Brown, Michael R., Martin, A.
core   +2 more sources

Novel Production Concept of CH2F-Molecular-Ion Implanted Si Epitaxial Wafer for Highly Sensitive 3-D-Stacked CMOS Image Sensors

open access: yesIEEE Journal of the Electron Devices Society
We have developed a novel molecular-ion implantation technique and a molecular-ion-implanted silicon epitaxial wafer for highly sensitive CMOS image sensors.
Ryo Hirose   +4 more
doaj   +1 more source

Effects of packing powder on densification and properties of pressureless sintered silicon nitride ceramics

open access: yesInternational Journal of Applied Ceramic Technology, Volume 22, Issue 5, September/October 2025.
Abstract Pressureless sintering of Si3N4 doped with 2 mol% Y2O3 and 5 mol% MgO was carried out at temperatures ranging from 1700°C to 1770°C in three kinds of packing powders consisting of Si3N4 and BN coupled with or without addition of Y2O3, MgO, and SiO2.
You Zhou   +3 more
wiley   +1 more source

TOPCon Solar Cells Made of n‐Type and p‐Type Epitaxially Grown Silicon Wafers

open access: yesSolar RRL, Volume 9, Issue 16, August 2025.
This study investigates the suitability of epitaxially grown silicon wafers for tunnel oxide passivating contact (TOPCon) solar cells in particular the high temperature stability required for boron emitter diffusion. Efficiencies up to 24.4% and 24.7% for n‐type and p‐type wafers were achieved, respectively, which demonstrate the suitability of ...
Armin Richter   +8 more
wiley   +1 more source

Impact of Iron Contamination on Liquid Properties and Microstructural Evolution in AlSi20

open access: yesAdvanced Engineering Materials, Volume 27, Issue 14, July 2025.
Recycled aluminum is much more energy conservative and sustainable than primary aluminum. However, the iron contamination in secondary aluminum is vastly responsible for the degradation of the material properties. Herein, it is aimed to evaluate the influence of iron contamination in hypereutectic Al–Si alloy through thermodynamic as well as ...
Layla Shams Tisha   +2 more
wiley   +1 more source

An Atomic‐Scale View at γ’‐Fe4N as Hydrogen Barrier Material

open access: yesAdvanced Materials Interfaces, Volume 12, Issue 13, July 14, 2025.
This study demonstrates the efficacy of γ’‐Fe4N nitride layers, formed via gas nitriding, as hydrogen permeation barriers. Advanced characterization, hydrogen permeation analysis, and DFT calculations reveal a 20 fold reduction in hydrogen diffusion at room temperature.
Aleksander Albrecht   +11 more
wiley   +1 more source

Influence of laser radiation on optical properties of high resistivity crystals CdTe and solid solutions Cd1-xZnxTe

open access: yesФізика і хімія твердого тіла, 2020
In this paper, the transmission and reflection spectra of single crystals р-CdTe(111) are measured; solid solutions of Cd1-хZnхTe (х=0.1) in the range (0.2 – 1.7)·10-6 m before and after laser irradiation at the wavelength λ = 532 nm in the energy range ...
P. O. Gentsar, S. M. Levytskyi
doaj   +1 more source

Separating the Role of Mixing‐Entropy on the Dynamics of Glass‐Forming Liquids

open access: yesAdvanced Science, Volume 12, Issue 26, July 10, 2025.
This research innovates by distinguishing entropy’s impact from enthalpy in materials through micro‐alloying. It finds liquid fragility decreases with minimal alloying content or increased element diversity. This clarifies entropy’s role and supports the entropy‐driven glass transition, guiding new material design.
Qing‐Zhou Bu   +7 more
wiley   +1 more source

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