Investigations on the growth of manifold morphologies and optical properties of ZnO nanostructures
grown by radio frequency magnetron sputtering
By:Venkatesh, PS (Venkatesh, P. Sundara)[ 1 ] ; Ramakrishnan, V (Ramakrishnan, V.)[ 2 ] ; Jeganathan,
K (Jeganathan, K.)[ 1 ]
AIP ADVANCES
Volume: 3
Issue: 8
Article Number: 082133
DOI: 10.1063/1.4820386
Published: AUG 2013
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Abstract
The growth of ZnO nanostructures under various combinations of argon and oxygen pressures by
radio frequency magnetron sputtering has been reported. The anisotropic transformation of
nanostructures from the vertical standing nanorods to self branched lateral nanowires has been
observed due to the change in the migration length of the adatoms owing to the deposition pressure
and temperature. A dominant (002) reflection having narrow full width at half maximum of the
vertical standing nanorods depicts the preferential orientation along c-axis of wurtzite ZnO with high
crystalline nature. It is further substantiated by a sharp E-2(high) phonon mode of ZnO nanorods at
437.2 cm(-1). A broad green emission at 2.28 eV pertaining to oxygen vacancies that quenches with
increasing the oxygen pressure due to the compensation of oxygen vacancies while zinc vacancy
mediated emission at 3.01 eV is enhanced. (C) 2013 Author(s). All article content, except where
otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.
Keywords
Keywords
Plus:ZINC-OXIDE; THIN-FILMS; ROOM-TEMPERATURE; SCALE
GROWTH; NANOWIRES; DEPOSITION; NANORODS; SI;PHOTOLUMINESCENCE; SUBSTR
ATE
Author Information
Reprint Address: Jeganathan, K (reprint author)
Bharathidasan Univ, Ctr Nanosci & Nanotechnol, Sch Phys, Tiruchchirappalli 620024, Tamil Nadu, India.
Addresses:
[ 1 ] Bharathidasan Univ, Ctr Nanosci & Nanotechnol, Sch Phys, Tiruchchirappalli 620024, Tamil Nadu, India
[ 2 ] Madurai Kamaraj Univ, Sch Phys, Dept Laser Studies, Madurai 625021, Tamil Nadu, India
E-mail Addresses:kjeganathan@yahoo.com
Funding
Funding Agency
Grant Number
Department of Science and Technology (DST), Govt. of India under the schemes of
Fund for Improvement of Science and Technology Infrastructure in Universities
and Higher Educational Institutes (FIST) and Nanomission
SR/NM/NS77/2008
41-
University Grants Commission (UGC) Govt. of India
963/2012(SR)
Council of Scientific and Industrial Research (CSIR), Govt. of India
View funding text
Publisher
AMER INST
PHYSICS, CIRCULATION
&
FULFILLMENT
DIV, 2 HUNTINGTON
QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA
Categories / Classification
Research Areas:Science & Technology - Other Topics; Materials Science; Physics
Web of Science Categories:Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Physics, Applied
Document Information
Document Type:Article
Language:English
Accession Number: WOS:000323845000033
ISSN: 2158-3226
Other Information
IDS Number: 210PA
Cited References in Web of Science Core Collection: 42
Times Cited in Web of Science Core Collection: 2