Synthesis of ZnO nanotubes and nanotube-nanorod hybrid hexagonal networks using a hexagonally close-packed colloidal monolayer template

2010 ◽  
Vol 20 (24) ◽  
pp. 5136 ◽  
Author(s):  
Yong Bum Pyun ◽  
Jaeseok Yi ◽  
Dong Hyun Lee ◽  
Kwang Soo Son ◽  
Guanchen Liu ◽  
...  
Keyword(s):  
Colloidal Monolayer ◽  
Zno Nanotubes ◽  
Colloidal Monolayer Template

Fabrication of tunable pore size of nickel membranes by electrodeposition on colloidal monolayer template

2011 ◽  
Vol 509 (23) ◽  
pp. 6528-6531 ◽  
Author(s):  
Jian-Hong Lee ◽  
Yi-Wen Chung ◽  
Min-Hsiung Hon ◽  
Ing-Chi Leu
Keyword(s):  
Pore Size ◽  
Colloidal Monolayer ◽  
Colloidal Monolayer Template

Fabrication and optical properties of the Si honeycomb structure via colloidal monolayer template

2017 ◽  
Vol 25 (1) ◽  
pp. 23-28 ◽  
Author(s):  
Ying Wu ◽  
Peiyu Wang ◽  
Congmian Zhen ◽  
Kaiqi Zhang ◽  
Wenzhe Guo ◽  
...  
Keyword(s):  
Optical Properties ◽  
Honeycomb Structure ◽  
Colloidal Monolayer ◽  
Colloidal Monolayer Template

scholarly journals Synthesis and photoluminescence properties of ZnS nanobowl arrays via colloidal monolayer template

2014 ◽  
Vol 9 (1) ◽  
Author(s):  
Yanping Liu ◽  
Zhigang Li ◽  
Wenwu Zhong ◽  
Li Zhang ◽  
Weiping Chen ◽  
...  
Keyword(s):  
Photoluminescence Properties ◽  
Colloidal Monolayer ◽  
Colloidal Monolayer Template

scholarly journals Vertical monolithic integration of wide- and narrow-bandgap semiconductor nanostructures on graphene films

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Youngbin Tchoe ◽  
Janghyun Jo ◽  
HoSung Kim ◽  
Heehun Kim ◽  
Hyeonjun Baek ◽  
...  
Keyword(s):  
Graphene Film ◽  
Monolithic Integration ◽  
Hybrid Nanostructures ◽  
Dual Wavelength ◽  
Multilayer Graphene ◽  
Graphene Films ◽  
Transmission Electron ◽  
Zno Nanotubes ◽  
Metal Organic ◽  
Hybrid Configuration

AbstractWe report monolithic integration of indium arsenide (InAs) nanorods and zinc oxide (ZnO) nanotubes using a multilayer graphene film as a suspended substrate, and the fabrication of dual-wavelength photodetectors with the hybrid configuration of these materials. For the hybrid nanostructures, ZnO nanotubes and InAs nanorods were grown vertically on the top and bottom surfaces of the graphene films by metal-organic vapor-phase epitaxy and molecular beam epitaxy, respectively. The structural, optical, and electrical characteristics of the hybrid nanostructures were investigated using transmission electron microscopy, spectral photoresponse analysis, and current–voltage measurements. Furthermore, the hybrid nanostructures were used to fabricate dual-wavelength photodetectors sensitive to both ultraviolet and mid-infrared wavelengths.

scholarly journals Plasma Fabrication and SERS Functionality of Gold Crowned Silicon Submicrometer Pillars

Materials ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1244 ◽  
Author(s):  
Paola Pellacani ◽  
Carlo Morasso ◽  
Silvia Picciolini ◽  
Dario Gallach ◽  
Lucia Fornasari ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Post Processing ◽  
Advanced Material ◽  
X Ray ◽  
Colloidal Monolayer ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Lift Off ◽  
X Ray Absorption

Sequential plasma processes combined with specific lithographic methods allow for the fabrication of advanced material structures. In the present work, we used self-assembled colloidal monolayers as lithographic structures for the conformation of ordered Si submicrometer pillars by reactive ion etching. We explored different discharge conditions to optimize the Si pillar geometry. Selected structures were further decorated with gold by conventional sputtering, prior to colloidal monolayer lift-off. The resulting structures consist of a gold crown, that is, a cylindrical coating on the edge of the Si pillar and a cavity on top. We analysed the Au structures in terms of electronic properties by using X-ray absorption spectroscopy (XAS) prior to and after post-processing with thermal annealing at 300 °C and/or interaction with a gold etchant solution (KI). The angular dependent analysis of the plasmonic properties was studied with Fourier transformed UV-vis measurements. Certain conditions were selected to perform a surface enhanced Raman spectroscopy (SERS) evaluation of these platforms with two model dyes, prior to confirming the potential interest for a well-resolved analysis of filtered blood plasma.

Growth of Single Crystalline ZnO Nanotubes and Nanosquids

2007 ◽  
Vol 1057 ◽  
Author(s):  
Abhishek Prasad ◽  
Samuel Mensah ◽  
Jiesheng Wang ◽  
Archana Pandey ◽  
Yoke Khin Yap
Keyword(s):  
Vapor Deposition ◽  
Self Assembly ◽  
Chemical Vapor ◽  
Zno Nanostructures ◽  
X Ray ◽  
Thermal Chemical Vapor Deposition ◽  
Crystal Growth Mechanism ◽  
Zno Nanotubes ◽  
Solid Crystal

ABSTRACTThe growth of ZnO nanotubes and nanosquids is obtained by conventional thermal chemical vapor deposition (CVD) without the use of catalysts or templates. Characterization of these ZnO nanostructures was conducted by X-ray powder diffraction (XRD), Field-emission scanning electron microscopy (FESEM), Raman spectroscopy, and photoluminescence (PL). Results indicate that these ZnO nanostructures maintain the crystalline structures of the bulk wurtzite ZnO crystals. Our results show that rapid cooling can be used to induce the formation of ZnO nanotubes and ZnO nanosquids. The self-assembly of these novel ZnO nanostructures are guided by the theory of nucleation and the vapor-solid crystal growth mechanism.

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