Matteo Meneghini

Nov 4, 2024 | pubs.aip.org | Grzegorz Greczynski |Matteo Meneghini

Topics Crystallographic defects, Electronic band structure, PIN diode, Electrical properties and parameters, Schottky diodes, Current-voltage characteristic, Quantum wells, Potential energy barrier 4H-SiC power devices are a promising candidate to achieve low-loss and small power electronics systems because of the material properties of SiC, namely, its wide bandgap, high critical electric field, and high thermal conductivity.1–4 The performance of SiC power devices has been considerably...

Nov 4, 2024 | pubs.aip.org | Grzegorz Greczynski |Matteo Meneghini

An equivalent circuit model is a parametric representation that provides a clear and intuitive understanding of the electrical characteristics and behavior of APPJs.46 It can effectively elucidate energy transfer and conversion and can be used to quickly and easily evaluate devices through a simple functional relationship. We propose using a circuit model known as “multi-channel discharge” to investigate the electrical behavior of the APPJ for the specific discharge surface proposed in this work.

Oct 25, 2024 | pubs.aip.org | C. Le Bras |Grzegorz Greczynski |Matteo Meneghini

In a semiconductor or an insulator, as an electron is excited from the valence band to a state in the conduction band, the absence of the valence electron can be regarded as a hole with a positive charge so that an exciton forms from the electron–hole interaction.1 For a confined system with symmetric configuration, there are usually no intrinsic dipoles in excitons.

Oct 25, 2024 | pubs.aip.org | Biomedical Engineering |C. Le Bras |Grzegorz Greczynski |Matteo Meneghini

Hydrogen has been recognized as a carbon-free and clean energy with a wide range of sources and application scenarios, which can help in promoting the clean and efficient utilization of oil and natural gas, and achieving large-scale deep decarbonization of transportation and industrial sectors.1–5 For instance, blending hydrogen into natural gas has been proposed as a promising and cost-effective approach to reduce the emissions from natural gas service.

Oct 23, 2024 | pubs.aip.org | C. Le Bras |Grzegorz Greczynski |Matteo Meneghini

Organic–inorganic hybrid perovskite semiconductors have attracted extensive attention in recent decades owing to their excellent properties such as high absorption coefficient, a tunable bandgap, long carrier diffusion length, and small Urbach energies.1–5 The power conversion efficiency (PCE) of perovskite solar cells (PSCs) increased from the initial 3.8% to 26.1% only in the past ten years.6,7 Although the PCE of PSCs is very close to that of silicon-based cells, abnormal current...