Toward Optimized Radial Modulation of the Space-Charge Region in One-Dimensional SnO2–NiO Core–Shell Nanowires for Hydrogen Sensing

2020 ◽  
Vol 12 (4) ◽  
pp. 4594-4606 ◽  
Author(s):  
Muhammad Hamid Raza ◽  
Navpreet Kaur ◽  
Elisabetta Comini ◽  
Nicola Pinna
Keyword(s):  
Space Charge ◽  
Space Charge Region ◽  
Core Shell ◽  
One Dimensional ◽  
Hydrogen Sensing ◽  
Shell Nanowires

On the Luminescence of VLS-grown GaAs-AlGaAs Core-Shell Nanowires and its Dependence on MOVPE Growth Conditions

2009 ◽  
Vol 1206 ◽  
Author(s):  
Paola Prete ◽  
Nico Lovergine ◽  
Ilio Miccoli ◽  
Fabio Marzo ◽  
Joan S. Burger ◽  
...  
Keyword(s):  
Space Charge ◽  
Space Charge Region ◽  
Growth Conditions ◽  
Molar Ratio ◽  
Core Shell ◽  
The Core ◽  
Movpe Growth ◽  
Gaas Nanowire ◽  
Pl Emission ◽  
Shell Nanowires

AbstractWe report on the photoluminescence (PL) of GaAs-Al0.32Ga0.68As core-shell nanowires grown by MOVPE, and their dependence on the precursors V:III molar ratio utilised in the vapor during growth. It is shown that the PL emission of the GaAs nanowire core red-shifts with decreasing the V:III ratio from 30:1 to 4:1, an effect tentatively ascribed to the build-up of a space-charge region at the core-shell hetero-interface, the latter associated to the unintentional incorporation of impurities, namely C in GaAs and Si in AlGaAs.

Hydrogen generation enhanced by nano-forest structures

RSC Advances ◽  
2016 ◽  
Vol 6 (16) ◽  
pp. 12953-12958 ◽  
Author(s):  
Keumyoung Seo ◽  
Taekyung Lim ◽  
Edmund M. Mills ◽  
Sangtae Kim ◽  
Sanghyun Ju
Keyword(s):  
Surface Area ◽  
Hierarchical Structure ◽  
Hydrogen Generation ◽  
Three Dimensional ◽  
Core Shell ◽  
Porous Disk ◽  
One Dimensional ◽  
Reaction Surface ◽  
Shell Nanowires

A hierarchical structure of one-dimensional CeO2/SnO2 core–shell nanowires on a three-dimensional porous disk (namely the “nanowire forest”) could maximize the reaction surface area and avoid coarsening during hydrogen generation.

FACILE FABRICATION OF ONE-DIMENSIONAL MULTI-COMPONENT NANOSTRUCTURES USING POROUS ANODIZED ALUMINA MEMBRANE

COSMOS ◽  
2010 ◽  
Vol 06 (02) ◽  
pp. 221-234
Author(s):  
LOH PUI YEE ◽  
LIU CHENMIN ◽  
PUA WEICHENG ◽  
KAM FONG YU ◽  
CHIN WEE SHONG
Keyword(s):  
Good Control ◽  
Short Review ◽  
Core Shell ◽  
Alumina Membrane ◽  
One Dimensional ◽  
Metal Metal ◽  
Polymer Metal ◽  
Facile Fabrication ◽  
Multiwall Nanotubes ◽  
Shell Nanowires

In this short review, we report the facile fabrication of various interesting multi-component nanostructures including arrays of core-shell nanowires, multiwall nanotubes, segmented nanowires and multilayer stacked nanodisks, using anodized alumina membrane (AAM). We demonstrate that metallic (Cu, Ni and Au) and polymeric (PPV and PPy) one-dimensional (1D) arrays can be readily prepared by electrochemical deposition into the AAM. By optimizing the experimental design and conditions, we developed techniques to produce various multi-component nanostructures such as polymer/metal or metal/metal core-shell nanowires as well as nanotubes, with reasonably good control over both the length and the shell thickness of the nanostructures. Furthermore, we extend this method to make segmented nanowires as well as multilayer stacked nanodisks. Selective functionalization of the segmented nanowires resulted in end-on or side-on adhesion of nanowires during assembly. We illustrate the possibility of utilizing these 1D arrays to present patterns with luminescent and/or magnetic properties at this length scale.

New facile synthesis of one-dimensional Ag@TiO2 anatase core–shell nanowires for enhanced photocatalytic properties

RSC Advances ◽  
2014 ◽  
Vol 4 (103) ◽  
pp. 59114-59117 ◽  
Author(s):  
Qingsong Dong ◽  
Hongchao Yu ◽  
Zhengbo Jiao ◽  
Gongxuan Lu ◽  
Yingpu Bi
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Organic Contaminants ◽  
High Photocatalytic Activity ◽  
Core Shell ◽  
Facile Synthesis ◽  
One Dimensional ◽  
Tio2 Anatase ◽  
Shell Nanowires

One-dimensional Ag@TiO2 anatase core–shell nanowires are fabricated and exhibit high photocatalytic activity for degrading organic contaminants under visible-light irradiation.

Room-temperature magnetoresistance of one-dimensional magnetite (Fe3O4) nanostructures

2004 ◽  
Vol 853 ◽  
Author(s):  
Zuqin Liu ◽  
Daihua Zhang ◽  
Chongwu Zhou
Keyword(s):  
Magnetic Field ◽  
Wall Thickness ◽  
Room Temperature ◽  
Core Shell ◽  
Single Crystalline ◽  
One Dimensional ◽  
Magnetite Fe3o4 ◽  
Prepared Material ◽  
Different Temperatures ◽  
Shell Nanowires

ABSTRACTIn this paper, we present our recent studies on the synthesis and magnetoresistance of single crystalline Fe3O4 core-shell nanowires and nanotubes. Homogeneous Fe3O4 nanowires/tubes with controllable length, diameter and wall thickness were synthesized. The as-prepared material composition and stoichoimetry have been carefully examined and confirmed with a variety of characterization techniques including XRD, EDS, XPS, and TEM. Magnetoresistance under different temperatures was systemically studied. Up to 1.2% room temperature magnetoresistance was observed in the as synthesized nanowires/tubes under a magnetic field of B = 1.8 T.

Template-free electrochemical synthesis of Cd/CdTe core/shell nanowires and CdTe nanotubes

CrystEngComm ◽  
2020 ◽  
Vol 22 (25) ◽  
pp. 4301-4305
Author(s):  
Guangwei She ◽  
Tong Cai ◽  
Lixuan Mu ◽  
Wensheng Shi
Keyword(s):  
Crystal Structure ◽  
Electrochemical Synthesis ◽  
Kirkendall Effect ◽  
Core Shell ◽  
Anisotropic Crystal ◽  
One Dimensional ◽  
Template Free ◽  
First Time ◽  
Shell Nanowires ◽  
Cdte Core

Template-free electrodeposition was utilized to prepare Cd/CdTe nanowires and CdTe nanotubes for the first time, where the formation of one-dimensional structures was due to the highly anisotropic crystal structure and the Kirkendall effect.

Improved light emission of MoS2 monolayers by constructing AlN/MoS2 core–shell nanowires

2017 ◽  
Vol 5 (39) ◽  
pp. 10225-10230 ◽  
Author(s):  
Fei Chen ◽  
Ting Wang ◽  
Lei Wang ◽  
Xiaohong Ji ◽  
Qinyuan Zhang
Keyword(s):  
Charge Transfer ◽  
Light Emission ◽  
Hybrid Structure ◽  
Core Shell ◽  
One Dimensional ◽  
Pl Emission ◽  
Mos2 Monolayers ◽  
Shell Nanowires

Hybrid structure of one-dimensional AlN/1L-MoS2 core–shell nanowires exhibited enhanced PL emission due to the charge transfer across the interface of the heterostructure.

scholarly journals SnO 2 ‐SiO 2 1D Core‐Shell Nanowires Heterostructures for Selective Hydrogen Sensing

2021 ◽  
pp. 2100939
Author(s):  
Muhammad Hamid Raza ◽  
Navpreet Kaur ◽  
Elisabetta Comini ◽  
Nicola Pinna
Keyword(s):  
Core Shell ◽  
Hydrogen Sensing ◽  
Shell Nanowires
Sign in / Sign up

Export Citation Format

Share Document