Magnetic resonance on core-shell nanowires with notches

2011 ◽  
Vol 99 (10) ◽  
pp. 101907 ◽  
Author(s):  
Lina Xu ◽  
Zhi-Jian Zhang ◽  
Bong Jae Lee
Keyword(s):  
Magnetic Resonance ◽  
Core Shell ◽  
Shell Nanowires

The synthesis of core–shell nanowires with intense dielectric and magnetic resonance properties at microwave frequency

2019 ◽  
Vol 7 (12) ◽  
pp. 3590-3597 ◽  
Author(s):  
Kun Zhang ◽  
Fan Wu ◽  
Yingzhi Jiao ◽  
Mengxiao Sun ◽  
Yilu Xia ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Microwave Frequency ◽  
Core Shell ◽  
Resonance Properties ◽  
Shell Nanowires

Highly intense narrowband dielectric and magnetic resonance at microwave frequency.

One-Dimensional TiO2@GaON Core-Shell Nanowires with Controlled Shell Thickness from Atomic Layer Deposition for Stable and Efficient Photoelectrochemical Water Splitting

2019 ◽  
Author(s):  
Jiajia Tao ◽  
Hong-Ping Ma ◽  
Kaiping Yuan ◽  
Yang Gu ◽  
Jianwei Lian ◽  
...  
Keyword(s):  
Atomic Layer Deposition ◽  
Band Gap ◽  
Water Splitting ◽  
Atomic Layer ◽  
Photoelectrochemical Water Splitting ◽  
Core Shell ◽  
Photoelectrochemical Performance ◽  
Highly Efficient ◽  
Layer Deposition ◽  
Shell Nanowires

<div>As a promising oxygen evolution reaction semiconductor, TiO2 has been extensively investigated for solar photoelectrochemical water splitting. Here, a highly efficient and stable strategy for rationally preparing GaON cocatalysts on TiO2 by atomic layer deposition is demonstrated, which we show significantly enhances the</div><div>photoelectrochemical performance compared to TiO2-based photoanodes. For TiO2@20 nm-GaON core-shell nanowires a photocurrent density up to 1.10 mA cm-2 (1.23 V vs RHE) under AM 1.5 G irradiation (100 mW cm-2) has been achieved, which is 14 times higher than that of TiO2 NWs. Furthermore, the oxygen vacancy formation on GaON as well as the band gap matching with TiO2 not only provides more active sites for water oxidation but also enhances light absorption to promote interfacial charge separation and migration. Density functional theory studies of model systems of GaON-modified TiO2 confirm the band gap reduction, high reducibility and ability to activate water. The highly efficient and stable systems of TiO2@GaON core-shell nanowires provide a deeper understanding and universal strategy for enhancing photoelectrochemical performance of photoanodes now available. </div>

scholarly journals Silica-Coated Fe3O4 Nanoparticles as a Bifunctional Agent for Magnetic Resonance Imaging and ZnII Fluorescent Sensing

2021 ◽  
Vol 20 ◽  
pp. 153303382110365
Author(s):  
Lin Qiu ◽  
Shuwen Zhou ◽  
Ying Li ◽  
Wen Rui ◽  
Pengfei Cui ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Contrast Agent ◽  
Quantum Interference ◽  
Inductively Coupled Plasma ◽  
Fluorescence Emission ◽  
Mri Contrast Agent ◽  
Core Shell ◽  
Resonance Imaging

Bifunctional magnetic/fluorescent core-shell silica nanospheres (MNPs) encapsulated with the magnetic Fe3O4 core and a derivate of 8-amimoquinoline (N-(quinolin-8-yl)-2-(3-(triethoxysilyl) propylamino) acetamide) (QTEPA) into the shell were synthesized. These functional MNPs were prepared with a modified stöber method and the formed Fe3O4@SiO2-QTEPA core-shell nanocomposites are biocompatible, water-dispersible, and stable. These prepared nanoparticles were characterized by X-ray power diffraction (XRD), transmission electron microscopy (TEM), thermoelectric plasma Quad II inductively coupled plasma mass spectrometry (ICP-MS), superconducting quantum interference device (SQUID), TG/DTA thermal analyzer (TGA) and Fourier transform infrared spectroscopy (FTIR). Further application of the nanoparticles in detecting Zn2+ was confirmed by the fluorescence experiment: the nanosensor shows high selectivity and sensitivity to Zn2+ with a 22-fold fluorescence emission enhancement in the presence of 10 μM Zn2+. Moreover, the transverse relaxivity measurements show that the core-shell MNPs have T2 relaxivity (r2) of 155.05 mM−1 S−1 based on Fe concentration on the 3.0 T scanner, suggesting that the compound can be used as a negative contrast agent for MRI. Further in vivo experiments showed that these MNPs could be used as MRI contrast agent. Therefore, the new nanosensor provides the dual modality of magnetic resonance imaging and optical imaging.

scholarly journals Broadband Meta‐Absorber with Au/Ni Core–Shell Nanowires for Solar Vapor Generator

2021 ◽  
Vol 5 (7) ◽  
pp. 2100185
Author(s):  
Soomin Son ◽  
Jaemin Park ◽  
Sucheol Ju ◽  
Daihong Huh ◽  
Junho Jun ◽  
...  
Keyword(s):  
Core Shell ◽  
Vapor Generator ◽  
Shell Nanowires

scholarly journals Correlated optical and structural analyses of individual GaAsP/GaP core–shell nanowires

2019 ◽  
Vol 30 (30) ◽  
pp. 304001 ◽  
Author(s):  
C Himwas ◽  
S Collin ◽  
H-L Chen ◽  
G Patriarche ◽  
F Oehler ◽  
...  
Keyword(s):  
Core Shell ◽  
Shell Nanowires

scholarly journals Gate length dependent transport properties of in-plane core-shell nanowires with raised contacts

Nano Research ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 61-66
Author(s):  
Alexandre Bucamp ◽  
Christophe Coinon ◽  
David Troadec ◽  
Sylvie Lepilliet ◽  
Gilles Patriarche ◽  
...  
Keyword(s):  
Transport Properties ◽  
Core Shell ◽  
Gate Length ◽  
Dependent Transport ◽  
Shell Nanowires

scholarly journals Micro-Raman investigations of InN-GaN core-shell nanowires on Si (111) substrate

AIP Advances ◽  
2013 ◽  
Vol 3 (6) ◽  
pp. 062114 ◽  
Author(s):  
P. Sangeetha ◽  
K. Jeganathan ◽  
V. Ramakrishnan
Keyword(s):  
Core Shell ◽  
Shell Nanowires
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