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

19 April 2013 Large-area graphene-based thin films using rapid reduction of graphene-oxide

Gautam Naik, Adarsh Kaniyoor, Sundara Ramaprabhu, Sridhar Krishnaswamy

Proceedings Volume 8692, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013; 86921C (2013) https://doi.org/10.1117/12.2012198
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2013, San Diego, California, United States

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 _ve orders of magnitude compared to GO. This method offers a scalable new way of fabricating conductive large-area graphene-based thin films.

Citation Download Citation

Gautam Naik, Adarsh Kaniyoor, Sundara Ramaprabhu, and Sridhar Krishnaswamy "Large-area graphene-based thin films using rapid reduction of graphene-oxide", Proc. SPIE 8692, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013, 86921C (19 April 2013); https://doi.org/10.1117/12.2012198

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available