alexa Characterization Of The Structural And Optical Properties Of ZnO Nanostructures By X-ray Diffraction
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 Please wait..

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

Ya-Fen Wu
Ming Chi University of Technology, Taiwan
Posters & Accepted Abstracts: J Material Sci Eng
DOI: 10.4172/2169-0022-C1-065
Zinc Oxide (ZnO) has been extensively investigated due to its unique properties such as wide direct bandgap energy, large exciton binding energy, and thermal stability. These characteristics make ZnO nanostructures interesting for application in ultraviolet (UV) light emitters, optoelectronic devices, and chemical sensors. Various methods have been utilized to synthesize ZnO nanostructures, such as metal-organic chemical vapor deposition, sol-gel methods, and the low temperature hydrothermal method. The hydrothermal method has been widely used to grow ZnO nanostructures on ZnO-seeded substrate because of its advantages including low-cost, low-temperature, electronic compatible, and suitable for large area substrates. The properties of ZnO produced by the hydrothermal method are dependent upon preparation parameters such as growth temperature, precursor concentration, and growth time. In this work, the structural and optical properties of hydrothermally grown Zinc oxide (ZnO) nanostructures with aqueous solution molarity from 10 mM to 50 mM were studied by measurements of X-Ray Diffraction (XRD) and temperaturedependent photoluminescence (PL). The ZnO nanostructures exhibit weak emission in the Ultra Violet (UV) region and a strong and broad yellow-orange emission peak. With increasing solution molarities, the relative PL intensity ratio of the emission in the UV region to the emission in the visible region first increases and then decreases. It implies that too higher solution molarity leads to the disorder of ZnO structures. To verify the results, the measured X-ray diffraction curves are analyzed by a theoretical model and the ZnO structure size distribution were calculated. The analysis shows that the structure size uniformity of hydrothermally grown ZnO is improved with appropriately increased aqueous solution molarity, which is consistent with the experimental results from the PL spectra. Furthermore, the calculated results of the size broadening effect of the samples are verified from the Scanning Electron Microscope (SEM) images.

Ya-Fen Wu received MS degree in Department of Electrical Engineering from National Central University, Taiwan, and PhD degree in Department of Electronic Engineering from Chang Gung University, Taiwan, in 1990 and 2007, respectively. Currently, she is with the Department of Electronic Engineering of Ming Chi University of Technology, Taiwan, as Professor. Her main field of research includes compound semiconductor materials and opto-electrical devices.

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


[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

engin[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