Large-area graphene-based thin films using rapid reduction of graphene-oxide

Gautam Naik; Adarsh Kaniyoor; Sundara Ramaprabhu; Sridhar Krishnaswamy

doi:10.1117/12.2012198

Large-area graphene-based thin films using rapid reduction of graphene-oxide

Gautam Naik, Adarsh Kaniyoor, Sundara Ramaprabhu, Sridhar Krishnaswamy

Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In the present study, we propose a method to fabricate large-area graphene-based thin films using rapid low-temperature reduction of graphene-oxide. Large area (∼17.5 sq.cm.) graphene oxide (GO) thin films are fabricated by vacuum filtration of GO solution synthesized by the modified Hummers' method. The graphene-oxide thin films are reduced in a MTS testing machine equipped with a controlled atmosphere furnace. Reduction is carried out at temperatures from 200°C to 400°C, for different time durations. The fabricated reduced GO thin films are characterized using powder x-ray diffraction and energy-dispersive x-ray spectroscopy. The reduced graphene oxide thin films show decreased interlayer spacing and higher carbon-to-oxygen ratio. Conductivity measurements show an increase in conductivity by over five orders of magnitude compared to GO. This method offers a scalable new way of fabricating conductive large-area graphene-based thin films.

Original language	English (US)
Title of host publication	Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013
Volume	8692
DOIs	https://doi.org/10.1117/12.2012198
State	Published - Jun 12 2013
Event	2013 SPIE Conference on Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013 - San Diego, CA, United States Duration: Mar 10 2013 → Mar 14 2013

Other

Other	2013 SPIE Conference on Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013
Country/Territory	United States
City	San Diego, CA
Period	3/10/13 → 3/14/13

Keywords

Graphene
Thermal reduction
Thin film

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.2012198

Cite this

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title = "Large-area graphene-based thin films using rapid reduction of graphene-oxide",

abstract = "In the present study, we propose a method to fabricate large-area graphene-based thin films using rapid low-temperature reduction of graphene-oxide. Large area (∼17.5 sq.cm.) graphene oxide (GO) thin films are fabricated by vacuum filtration of GO solution synthesized by the modified Hummers' method. The graphene-oxide thin films are reduced in a MTS testing machine equipped with a controlled atmosphere furnace. Reduction is carried out at temperatures from 200°C to 400°C, for different time durations. The fabricated reduced GO thin films are characterized using powder x-ray diffraction and energy-dispersive x-ray spectroscopy. The reduced graphene oxide thin films show decreased interlayer spacing and higher carbon-to-oxygen ratio. Conductivity measurements show an increase in conductivity by over five orders of magnitude compared to GO. This method offers a scalable new way of fabricating conductive large-area graphene-based thin films.",

keywords = "Graphene, Thermal reduction, Thin film",

author = "Gautam Naik and Adarsh Kaniyoor and Sundara Ramaprabhu and Sridhar Krishnaswamy",

year = "2013",

month = jun,

day = "12",

doi = "10.1117/12.2012198",

language = "English (US)",

isbn = "9780819494757",

volume = "8692",

booktitle = "Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013",

note = "2013 SPIE Conference on Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013 ; Conference date: 10-03-2013 Through 14-03-2013",

}

Naik, G, Kaniyoor, A, Ramaprabhu, S & Krishnaswamy, S 2013, Large-area graphene-based thin films using rapid reduction of graphene-oxide. in Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013. vol. 8692, 86921C, 2013 SPIE Conference on Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013, San Diego, CA, United States, 3/10/13. https://doi.org/10.1117/12.2012198

TY - GEN

T1 - Large-area graphene-based thin films using rapid reduction of graphene-oxide

AU - Naik, Gautam

AU - Kaniyoor, Adarsh

AU - Ramaprabhu, Sundara

AU - Krishnaswamy, Sridhar

PY - 2013/6/12

Y1 - 2013/6/12

N2 - In the present study, we propose a method to fabricate large-area graphene-based thin films using rapid low-temperature reduction of graphene-oxide. Large area (∼17.5 sq.cm.) graphene oxide (GO) thin films are fabricated by vacuum filtration of GO solution synthesized by the modified Hummers' method. The graphene-oxide thin films are reduced in a MTS testing machine equipped with a controlled atmosphere furnace. Reduction is carried out at temperatures from 200°C to 400°C, for different time durations. The fabricated reduced GO thin films are characterized using powder x-ray diffraction and energy-dispersive x-ray spectroscopy. The reduced graphene oxide thin films show decreased interlayer spacing and higher carbon-to-oxygen ratio. Conductivity measurements show an increase in conductivity by over five orders of magnitude compared to GO. This method offers a scalable new way of fabricating conductive large-area graphene-based thin films.

AB - In the present study, we propose a method to fabricate large-area graphene-based thin films using rapid low-temperature reduction of graphene-oxide. Large area (∼17.5 sq.cm.) graphene oxide (GO) thin films are fabricated by vacuum filtration of GO solution synthesized by the modified Hummers' method. The graphene-oxide thin films are reduced in a MTS testing machine equipped with a controlled atmosphere furnace. Reduction is carried out at temperatures from 200°C to 400°C, for different time durations. The fabricated reduced GO thin films are characterized using powder x-ray diffraction and energy-dispersive x-ray spectroscopy. The reduced graphene oxide thin films show decreased interlayer spacing and higher carbon-to-oxygen ratio. Conductivity measurements show an increase in conductivity by over five orders of magnitude compared to GO. This method offers a scalable new way of fabricating conductive large-area graphene-based thin films.

KW - Graphene

KW - Thermal reduction

KW - Thin film

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U2 - 10.1117/12.2012198

DO - 10.1117/12.2012198

M3 - Conference contribution

AN - SCOPUS:84878682305

SN - 9780819494757

VL - 8692

BT - Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013

T2 - 2013 SPIE Conference on Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013

Y2 - 10 March 2013 through 14 March 2013

ER -

Large-area graphene-based thin films using rapid reduction of graphene-oxide

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Keywords

ASJC Scopus subject areas

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