Results 61 to 70 of about 6,652 (220)
High Quality Antimony‐Doped n‐Type Silicon Wafers for Solar Cell Applications
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
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]
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
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
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
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
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
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
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
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

