Abstracts Book - IMRC 2018

• SA1-P031
EFFICIENCY OF GRAPHENE OXIDE PHOTOREDUCTION USING
VARIOUS LIGHT SOURCES
Oscar Rafael Gomez Pacheco 1 , Jaime Ortiz 2
1 Instituto Politécnico Nacional - IPN, ESFM-Physics Dept., Mexico. 2 Instituto Politécnico Nacional
- IPN, ESFM- Physics Dept., Mexico.
The use of a source of light to reduce graphene oxide is called phoreduction,
this kind of reduction have many advantages above other reduction methods
(chemical, thermic, etc).
The main application for this study is for fabrication of micro or nanoelectronics
circuits.
It was being used several sources of light, each one with its own characteristic
wavelength, between far infrared to ultraviolet. These sources were: IR Bulb
(spread spectrum), Photographic Flash (spread spectrum), UV lamp (Hg: main
emission at 253.7 nm), N2 Laser (337nm), Nd-YAG Laser (1,064 nm), Light Scribe
CD Burner (783 nm) and CO2 Laser (9,400 and 10,600 nm).
Some of the sources didn’t (or partially) reduce the graphene oxide, the samples
reduced with the better reductive agents were taken for further studies and
complete characterization. The effective reductive agents were: Laser CO2, Light
Scribe Burner, Laser Nd-YAG, UV Lamp and partially photographic flash, the
effectiveness was in thar order (form better to less).
The feature measured were: Accurately Control of the shape and dimensions,
Instantaneous Reduction (for industrial applications), the transition zone
obtained (between the reduced zone and no-reduced zone) desirable negligible
o none, quantity of Radicals presents in the reduced zone, Defects, Electric
Properties and Laminar Size.
Acknowledgment:
We acknowledge COFAA-IPN, EDI-IPN and SIP-IPN (projects #20160197 &
#20170552) for partial economical support. We are grateful to Centro
Nanociencia y Micro-Nanotecnologia-IPN for assistance in fluorescence
microscopy, to Dr. Jaime Santoyo for assistance in X-ray diffraction analysis, to
Dr. Antonio de Ita (UAM-Azc) for assistance in X-Ray Diffraction and TGA and Dra