Observation of large positive magneto-resistance in bubble decorated graphene oxide films derived from shellac biopolymer: a new carbon source and facile method for morphology-controlled properties†
IR@NML: CSIR-National Metallurgical Laboratory, Jamshedpur
View Archive Info| Field | Value | |
| Title |
Observation of large positive magneto-resistance
in bubble decorated graphene oxide films derived
from shellac biopolymer: a new carbon source and
facile method for morphology-controlled
properties†
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| Creator |
Singhbabu, Y N
Choudhary, Shyam K Shukla, N Das, S Sahu, Ranjan K |
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| Subject |
Materials Science
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| Description |
We report a large positive magneto-resistance (MR) in bubble decorated graphene oxide films that are
derived from shellac biopolymer as a carbon source. These films were produced on a quartz substrate by
heating the biopolymer coated substrate at 900 °C in an argon atmosphere. The characterization data of
the films using Raman, X-ray photoelectron spectroscopy, field emission scanning electron microscopy
and transmission electron microscopy reveal that shellac can be used as a new carbon source to produce
transparent bubble decorated graphene oxide films. The magneto-resistance results show a 130% change
in the resistance of the films at 3 K under a perpendicular magnetic field of 15 T, and the value decreases
exponentially up to 50 K. The observed MR properties of the bubble decorated graphene oxide films are
explained using a weak anti-localization and quantum interference model in the low magnetic field
region, while the Lorentz force accounts for the MR properties well in the high magnetic field region.
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| Publisher |
NCBI
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| Date |
2015
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://eprints.nmlindia.org/7227/1/YNSinghbabu-2015-Nanoscale.pdf
Singhbabu, Y N and Choudhary, Shyam K and Shukla, N and Das, S and Sahu, Ranjan K (2015) Observation of large positive magneto-resistance in bubble decorated graphene oxide films derived from shellac biopolymer: a new carbon source and facile method for morphology-controlled properties†. Nanoscale, 7 (IF-6.739). pp. 6510-6519. |
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| Relation |
http://www.ncbi.nlm.nih.gov/pubmed/25788392
http://eprints.nmlindia.org/7227/ |
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