Hole-Effective Masses in the Transport Calculation of Si Nanowire pMOSFETs

If fermions interact with a scalar field, and there are many fermions present the scalar field may develop an expectation value and generate an effective mass for the fermions. This can lead to the formation of fermion clusters, which could be relevant for neutrino astrophysics and for dark matter astrophysics. Because this system may exhibit negative pressure, it also leads to a model of dark energy.

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Multiple Andreev reflections and Shapiro steps in a Ge-Si nanowire Josephson junction

Physical Review Materials ◽

10.1103/physrevmaterials.3.084803 ◽

2019 ◽

Vol 3 (8) ◽

Cited By ~ 6

Author(s):

Joost Ridderbos ◽

Matthias Brauns ◽

Ang Li ◽

Erik P. A. M. Bakkers ◽

Alexander Brinkman ◽

...

Keyword(s):

Josephson Junction ◽

Shapiro Steps ◽

Si Nanowire ◽

Multiple Andreev Reflections

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An efficient hybrid multi-level CMFD in space and energy for accelerating the high-fidelity neutron transport calculation

Annals of Nuclear Energy ◽

10.1016/j.anucene.2021.108446 ◽

2021 ◽

Vol 161 ◽

pp. 108446

Author(s):

Chen Hao ◽

Lixun Liu ◽

Le Kang ◽

Yunlin Xu

Keyword(s):

Neutron Transport ◽

High Fidelity ◽

Transport Calculation ◽

Multi Level

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Ag-Functionalized Si Nanowire Arrays Aligned Vertically for SERS Detection of Captured Heavy Metal Ions by BSA

Coatings ◽

10.3390/coatings11060685 ◽

2021 ◽

Vol 11 (6) ◽

pp. 685

Author(s):

Ai-Huei Chiou ◽

Jun-Luo Wei ◽

Ssu-Han Chen

Keyword(s):

Heavy Metal ◽

Raman Scattering ◽

Metal Ions ◽

Metal Ion ◽

Heavy Metal Ions ◽

Great Promise ◽

Ag Nps ◽

Water Contact ◽

Oh Groups ◽

Si Nanowire

A novel surface-enhanced Raman scattering (SERS)-based probe to capture heavy metal ion (Zn2+) by bovine serum albumin (BSA) using Si-nanowire (SiNW) arrays with silver nanoparticles (AgNPs) was developed. A layer with AgNPs was deposited on the SiNW surface by RF magnetron sputtering for enhancement of SERS signals. Using a high-resolution transmission electron microscope (HRTEM), the observation reveals that the AgNP layer with depths of 30–75 nm was successfully deposited on SiNW arrays. The Ag peaks in EDS and XRD spectra of SiNW arrays confirmed the presence of Ag particles on SiNW arrays. The WCA observations showed a high affinity of the Ag–SiNW arrays immobilized with BSA (water contact angle (WCA) = 87.1°) and ZnSO4 (WCA = 8.8°). The results of FTIR analysis illustrate that the conjugate bonds exist between zinc sulfate (ZnSO4) and –OH groups/–NH groups of BSA. The resulting SiNWs/Ag NPs composite interfaces showed large Raman scattering enhancement for the capture of heavy metal ions by BSA with a detection of 0.1 μM. BSA and ZnSO4 conjugations, illustrating specific SERS spectra with high sensitivity, which suggests great promise in developing label-free biosensors.

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