alexa Synthesis And Properties Of Metal Doped ZnO Nanostructures For Devices Applications
ISSN: 2169-0022

Journal of Material Sciences & Engineering
Open Access

OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations

700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Share This Page

Additional Info

Loading
Loading Please wait..
 

8th International Conference and Exhibition on Materials Science and Engineering
May 29-31, 2017 Osaka, Japan

Sirikanjana Thongmee
Kasetsart University, Thailand
Keynote: J Material Sci Eng
DOI: 10.4172/2169-0022-C1-063
Abstract
The effects of substituting Ag3+ into Ag-doped ZnO NR’s, Zn1-xAgxO (x=0.0, 0.1, 0.2, 0.3, 0.4 and 0.5) are investigated. X-Ray Diffraction (XRD) patterns do not indicate that the Ag ions are systematically replacing the Zn ions but instead are forming into nano Ag particles. Since the radius of the Ag3+ ions (0.126 nm) is much greater than that of Zn2+ (0.072 nm), there would be a tremendous amount of lattice distortion if at the higher level of Ag doping, the Ag ions replaced the Zn ions at the lattice sites. In the XRD patterns for the pure and x=0.1 NR’s, we did not observe any peaks of the FCC crystal structure of Ag. When Ag was increased to x≥0.3, we see the reflection from the Ag (1 1 1) and Ag (2 0 0) planes. SEM shows that the morphologies of NR’s are changing along with the shape of the rods as the level of Ag substitute increases. For pure ZnO, the rods are orientated perpendicular to the plane and appear to be hexagonal. The SEM images of the 1% Ag doped ZnO NR’s still show the presence of rod shaped particles. The morphologies of the 2% Ag doped ZnO NR’s are quite different. Some of them appear in star shape with a few arms emanating from a central point. SEM image of 5% Ag doped NR’s showed ZnO NR’s appear to be “broccoli” shaped. The results from PL spectrum revealed that the visible light emission of the undoped ZnO NR’s are somewhat suppressed but becomes strongly enhanced (in the region between 450–600 nm) as the level of Ag doping is increased to 1%, then to 2%. This could be taken as evidence that more defects were being created as the Ag ions were replacing the Zn in their sites in the wurtzite structure.
Biography

Sirikanjana Thongmee is an Assistant Professor of Physics. She was in Physics Department, Faculty of Science, Kasetsart University. She got her BSc in Physics at Prince of Songkla University, MSc in Chemical Physics at Mahidol University and PhD (Materials Science) at National University of Singapore. She got the Thesis Presentation Award, Mahidol University, Thailand in 1999 and Outstanding Research of the Year - 2nd Class Award, Office of the National Research Council of Thailand in 2003. Currently her research focuses on the metal doped ZnO for spintronics and gas sensors applications, magnetic nanomaterials, graphene oxide for different applications and activated carbon from agricultural waste.

Email: [email protected]

image PDF   |   image HTML
 

Relevant Topics

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri, Food, Aqua and Veterinary Science Journals

Dr. Krish

[email protected]

1-702-714-7001 Extn: 9040

Clinical and Biochemistry Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Business & Management Journals

Ronald

[email protected]

1-702-714-7001Extn: 9042

Chemical Engineering and Chemistry Journals

Gabriel Shaw

[email protected]

1-702-714-7001 Extn: 9040

Earth & Environmental Sciences

Katie Wilson

[email protected]

1-702-714-7001Extn: 9042

Engineering Journals

James Franklin

[email protected]

1-702-714-7001Extn: 9042

General Science and Health care Journals

Andrea Jason

[email protected]

1-702-714-7001Extn: 9043

Genetics and Molecular Biology Journals

Anna Melissa

[email protected]

1-702-714-7001 Extn: 9006

Immunology & Microbiology Journals

David Gorantl

[email protected]

1-702-714-7001Extn: 9014

Informatics Journals

Stephanie Skinner

[email protected]

1-702-714-7001Extn: 9039

Material Sciences Journals

Rachle Green

[email protected]

1-702-714-7001Extn: 9039

Mathematics and Physics Journals

Jim Willison

[email protected]

1-702-714-7001 Extn: 9042

Medical Journals

Nimmi Anna

[email protected]

1-702-714-7001 Extn: 9038

Neuroscience & Psychology Journals

Nathan T

[email protected]

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

John Behannon

[email protected]

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

[email protected]

1-702-714-7001 Extn: 9042

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords