Effect of samarium doping on structural, optical and magnetic properties of vertically aligned ZnO nanorod arrays

D. Ranjith Kumar; K. S. Ranjith; L. R. Nivedita; R. T.Rajendra Kumar

doi:10.1016/S1002-0721(17)61005-6

Effect of samarium doping on structural, optical and magnetic properties of vertically aligned ZnO nanorod arrays

D. Ranjith Kumar
, K. S. Ranjith
, L. R. Nivedita
, R. T.Rajendra Kumar

Department of Energy and Materials Engineering

Bharathiar University

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

Samarium doped vertically aligned one dimensional ZnO nanorod (NR) arrays were grown by vapor phase transport (VPT) method through vapor solid (VS) growth process. Influence of different concentrations (0% to 8%) of Sm (all Sm contents in the paper are in mass fraction) on the ZnO NR arrays were investigated by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), photoluminescence (PL), Raman spectroscopy and vibrating sample magnetometry (VSM) techniques, respectively. X-ray diffraction studies revealed that the ZnO NR arrays were perfectly oriented along (002) crystallographic orientation with wurtzite crystal structure. Photoluminescence results showed an increase in oxygen vacancies due to increase in Sm doping. M-H curves revealed enhanced ferromagnetic behavior, and the magnetic moment values were 0.45, 0.363, 1.694, 3.613 and 2.197 emu/cm³ for (0–8%) Sm doped ZnO NR arrays respectively. The curve revealed that paramagnetic behavior was observed for undoped ZnO NR arrays and on increasing the Sm dopant to 4%, paramagnetic switched to ferromagnetic behavior.

Original language	English
Pages (from-to)	1002-1007
Number of pages	6
Journal	Journal of Rare Earths
Volume	35
Issue number	10
DOIs	https://doi.org/10.1016/S1002-0721(17)61005-6
State	Published - Oct 2017

Keywords

defects
rare earths
room temperature ferromagnetism (RTFM)
Sm doped
ZnO

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10.1016/S1002-0721(17)61005-6

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@article{4b43bd7e4784480d81b2f3811ce7babe,

title = "Effect of samarium doping on structural, optical and magnetic properties of vertically aligned ZnO nanorod arrays",

abstract = "Samarium doped vertically aligned one dimensional ZnO nanorod (NR) arrays were grown by vapor phase transport (VPT) method through vapor solid (VS) growth process. Influence of different concentrations (0\% to 8\%) of Sm (all Sm contents in the paper are in mass fraction) on the ZnO NR arrays were investigated by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), photoluminescence (PL), Raman spectroscopy and vibrating sample magnetometry (VSM) techniques, respectively. X-ray diffraction studies revealed that the ZnO NR arrays were perfectly oriented along (002) crystallographic orientation with wurtzite crystal structure. Photoluminescence results showed an increase in oxygen vacancies due to increase in Sm doping. M-H curves revealed enhanced ferromagnetic behavior, and the magnetic moment values were 0.45, 0.363, 1.694, 3.613 and 2.197 emu/cm3 for (0–8\%) Sm doped ZnO NR arrays respectively. The curve revealed that paramagnetic behavior was observed for undoped ZnO NR arrays and on increasing the Sm dopant to 4\%, paramagnetic switched to ferromagnetic behavior.",

keywords = "defects, rare earths, room temperature ferromagnetism (RTFM), Sm doped, ZnO",

author = "Kumar, \{D. Ranjith\} and Ranjith, \{K. S.\} and Nivedita, \{L. R.\} and Kumar, \{R. T.Rajendra\}",

note = "Publisher Copyright: {\textcopyright} 2017 The Chinese Society of Rare Earths",

year = "2017",

month = oct,

doi = "10.1016/S1002-0721(17)61005-6",

language = "English",

volume = "35",

pages = "1002--1007",

journal = "Journal of Rare Earths",

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TY - JOUR

T1 - Effect of samarium doping on structural, optical and magnetic properties of vertically aligned ZnO nanorod arrays

AU - Kumar, D. Ranjith

AU - Ranjith, K. S.

AU - Nivedita, L. R.

AU - Kumar, R. T.Rajendra

PY - 2017/10

Y1 - 2017/10

N2 - Samarium doped vertically aligned one dimensional ZnO nanorod (NR) arrays were grown by vapor phase transport (VPT) method through vapor solid (VS) growth process. Influence of different concentrations (0% to 8%) of Sm (all Sm contents in the paper are in mass fraction) on the ZnO NR arrays were investigated by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), photoluminescence (PL), Raman spectroscopy and vibrating sample magnetometry (VSM) techniques, respectively. X-ray diffraction studies revealed that the ZnO NR arrays were perfectly oriented along (002) crystallographic orientation with wurtzite crystal structure. Photoluminescence results showed an increase in oxygen vacancies due to increase in Sm doping. M-H curves revealed enhanced ferromagnetic behavior, and the magnetic moment values were 0.45, 0.363, 1.694, 3.613 and 2.197 emu/cm3 for (0–8%) Sm doped ZnO NR arrays respectively. The curve revealed that paramagnetic behavior was observed for undoped ZnO NR arrays and on increasing the Sm dopant to 4%, paramagnetic switched to ferromagnetic behavior.

AB - Samarium doped vertically aligned one dimensional ZnO nanorod (NR) arrays were grown by vapor phase transport (VPT) method through vapor solid (VS) growth process. Influence of different concentrations (0% to 8%) of Sm (all Sm contents in the paper are in mass fraction) on the ZnO NR arrays were investigated by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), photoluminescence (PL), Raman spectroscopy and vibrating sample magnetometry (VSM) techniques, respectively. X-ray diffraction studies revealed that the ZnO NR arrays were perfectly oriented along (002) crystallographic orientation with wurtzite crystal structure. Photoluminescence results showed an increase in oxygen vacancies due to increase in Sm doping. M-H curves revealed enhanced ferromagnetic behavior, and the magnetic moment values were 0.45, 0.363, 1.694, 3.613 and 2.197 emu/cm3 for (0–8%) Sm doped ZnO NR arrays respectively. The curve revealed that paramagnetic behavior was observed for undoped ZnO NR arrays and on increasing the Sm dopant to 4%, paramagnetic switched to ferromagnetic behavior.

KW - defects

KW - rare earths

KW - room temperature ferromagnetism (RTFM)

KW - Sm doped

KW - ZnO

UR - https://www.scopus.com/pages/publications/85030162737

U2 - 10.1016/S1002-0721(17)61005-6

DO - 10.1016/S1002-0721(17)61005-6

M3 - Article

AN - SCOPUS:85030162737

SN - 1002-0721

VL - 35

SP - 1002

EP - 1007

JO - Journal of Rare Earths

JF - Journal of Rare Earths

IS - 10

ER -

Effect of samarium doping on structural, optical and magnetic properties of vertically aligned ZnO nanorod arrays

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