Oxygen vacancies induced room temperature ferromagnetism in Li, Na and K co-doped ZnO synthesized by solution combustion technique

Oxygen vacancies induced room temperature ferromagnetism in Li, Na and K co-doped ZnO synthesized... The room temperature ferromagnetism along with a rare orange emission in ZnO with equally concentrated Li, Na and K dopants is discussed here. In this report the alkali dopants Li, Na and K are co-doped in ZnO by solution combustion technique and annealed to two different temperatures 500 °C and 800 °C. The XRD analysis reveals the hexagonal wurtzite structure and the substitution of the alkali in ZnO. The SEM and EDAX study shows the morphology and impurity free samples of alkali doped ZnO. The photoluminescence data brings the profuse interstitial O atoms to light that involves in orange emission. The oxygen vacancies are also responsible for a weak green emission that decreases and then increases with alkali content. There is also a weak UV emission due to bound acceptor–donor recombination. The VSM shows the ferromagnetic behavior of the samples and thereby establishes that the alkali doped ZnO turns to be a member of the family of dilute magnetic semiconductors. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Science: Materials in Electronics Springer Journals

Oxygen vacancies induced room temperature ferromagnetism in Li, Na and K co-doped ZnO synthesized by solution combustion technique

Loading next page...
 
/lp/springer_journal/oxygen-vacancies-induced-room-temperature-ferromagnetism-in-li-na-and-sJaJ3iPE18
Publisher
Springer US
Copyright
Copyright © 2017 by Springer Science+Business Media, LLC, part of Springer Nature
Subject
Materials Science; Optical and Electronic Materials; Characterization and Evaluation of Materials
ISSN
0957-4522
eISSN
1573-482X
D.O.I.
10.1007/s10854-017-8476-z
Publisher site
See Article on Publisher Site

Abstract

The room temperature ferromagnetism along with a rare orange emission in ZnO with equally concentrated Li, Na and K dopants is discussed here. In this report the alkali dopants Li, Na and K are co-doped in ZnO by solution combustion technique and annealed to two different temperatures 500 °C and 800 °C. The XRD analysis reveals the hexagonal wurtzite structure and the substitution of the alkali in ZnO. The SEM and EDAX study shows the morphology and impurity free samples of alkali doped ZnO. The photoluminescence data brings the profuse interstitial O atoms to light that involves in orange emission. The oxygen vacancies are also responsible for a weak green emission that decreases and then increases with alkali content. There is also a weak UV emission due to bound acceptor–donor recombination. The VSM shows the ferromagnetic behavior of the samples and thereby establishes that the alkali doped ZnO turns to be a member of the family of dilute magnetic semiconductors.

Journal

Journal of Materials Science: Materials in ElectronicsSpringer Journals

Published: Dec 28, 2017

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off