Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Synthesis of silver nanowires through polyol process
Date
2012
Author
Coşkun, Şahin
Metadata
Show full item record
Item Usage Stats
380
views
0
downloads
Cite This
Nanotechnology enabled synthesis of various shapes and morphologies of conventional materials. Nanotubes, nanoparticles, quantum dots and nanowires are the new form of materials. Especially nanowires have gotten great attention due to their unique physical, chemical and optical properties. Superior properties of nanowires are based on their high surface area and two quantum confinement directions. Silver is one of the most conductive metals and it has the highest thermal conductivity. Due to excellent properties of bulk silver its nanostructures especially silver nanowires have been widely studied. Silver nanowires have been demonstrated to be used in optical polarizers, photonic crystals, surface enhanced Raman spectroscopy and recently transparent and conducting electodes. Hence, production of silver nanowires through a cost-effective and well controlled method could make important contributions to these and other unprecedented. So far, many different methods have been explored for the synthesis of silver nanowires. Vapor-liquid-solid (VLS) technique, hard template techniques such as porous anodic alumina synthesis and soft template techniques such as DNA based synthesis and polyol process are some silver nanowire synthesis methods. Among these methods, solution based polyol process is the most feasible one in terms of cost, yield and simplicity. In this thesis, polyol process, which is a novel and solution based method enabling the synthesis of silver nanowires with precise length and diameter control, is investigated. A detailed parametric study resulting in a full control over the resultant nanowire morphology is provided. The parameters affecting the structure have been determined as temperature, injection rate, poly(vinylpyrrolidone):silver nitrate (PVP:AgNO3) molar ratio, sodium chloride (NaCl) amount and stirring rate. The results show that polyol process method could replace the conventional silver nanowire fabrication methods. It was shown that specific nanowire lengths and diameters for any application can be obtained simply by adjusting the parameters of the process.
Subject Keywords
Nanowires.
,
Polyols.
URI
http://etd.lib.metu.edu.tr/upload/12614158/index.pdf
https://hdl.handle.net/11511/21314
Collections
Graduate School of Natural and Applied Sciences, Thesis
Suggestions
OpenMETU
Core
Synthesis of gold nanowires with high aspect ratio and morphological purity
Dertli, Elçin; Nalbant Esentürk, Emren; Ünalan, Hüsnü Emrah; Department of Micro and Nanotechnology (2012)
Metal nanoparticles have unique optical, electrical, catalytic and mechanical properties, which lead them to various applications in nanotechnology. In particular, noble metal nanowires are attracting growing attention due to their potential applications such as in opto-electronic devices and transparent conductive contacts (TCCs). There are two general approaches to synthesize nanowires: template-assisted and solution phase methods. However, these synthesis approaches have various disadvantages. For exampl...
A NONIONIC SURFACTANT VESICLE-IN-WATER-IN-OIL (V/W/O) SYSTEM - POTENTIAL USES IN DRUG AND VACCINE DELIVERY
YOSHIOKA, T; SKALKO, N; Gürsel, Mayda; GREGORIADIS, G; FLORENCE, AT (Informa UK Limited, 1995-01-01)
An aqueous dispersion of niosomes (non-ionic surfactant vesicles) emulsified in an external oil phase forms the vesicle-in-water-in-oil (v/w/o) system described in this paper. The properties of the surfactant used to form the vesicles, the surfactant or surfactant mixture used to stabilize the emulsion and the nature of the oil phase can be changed to provide systems of different capacities for drug or antigen and different release characteristics. The same nonionic surfactant is used as the principle amphi...
A novel method to measure the glass and melting transitions of pharmaceutical powders
Abiad, Mohamad G.; Gonzalez, David C.; Mert, Behiç; Campanella, Osvaldo H.; Carvajal, M. Teresa (Elsevier BV, 2010-08-30)
A method to measure thermo-mechanical properties of pharmaceutical and polymeric powders was developed The measurements are conducted by characterizing the material's response to applied acoustic waves Measurements were performed using griseofulvin, felodipine and indomethacin as model drugs and polyethylene oxide (MW 200,000, 900,000, 2,000,000 Da) as model polymers. The method employed measures the mechanical Impedance enabled the calculation of the powder theological and thermo-mechanical properties. Mea...
Synthesis of hierarchical calcium carbonate particles
Oral, Cağatay Mert; Kapusuz, Derya; Ercan, Batur (null; 2018-11-01)
Recently, synthesis of hierarchically structured porous materials gained particular interest for various industrial applications. As a biocompatible and chemically stable material, hierarchical CaCO3 structures formed by ordered aggregation and growth of nanocrystals offer significant advantages for structural and biomedical use compared to their currently-used alternatives. During solution processing, incorporating doping agents to calcium positions or altering CaCO3 supersaturation, new crystals can heter...
Synthesis of uniformly distributed single- and double-sided zinc oxide (ZnO) nanocombs
Yıldırım, Özlem Altıntaş; Liu, Yuzi; Petford-Long, Amanda K. (Elsevier BV, 2015-11-15)
Uniformly distributed single- and double-sided zinc oxide (ZnO) nanocomb structures have been prepared by a vapor-liquid-solid technique from a mixture of ZnO nanoparticles and graphene nanoplatelets. The ZnO seed nanoparticles were synthesized via a simple precipitation method. The structure of the ZnO nanocombs could easily be controlled by tuning the carrier-gas flow rate during growth. Higher flow rate resulted in the formation of uniformly-distributed single-sided comb structures with nanonail-shaped t...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
Ş. Coşkun, “Synthesis of silver nanowires through polyol process,” M.S. - Master of Science, Middle East Technical University, 2012.