Optical Study of Graphene Quantum Dots from Sawahlunto Coal Graphite

Dellansyah, Dellansyah, Saharman Gea, Saharman Gea, Andriayani, Andriayani, Mahyuni Harahap, Mahyuni Harahap, Grace Nainggolan, Grace Nainggolan

2019

Abstract

Graphene quantum dots (GQDs), quantum sized graphene materials, have been proposed to be candidate in optical and energy storage devices applications due its transparant properties and high surface area. In this work, Sawahlunto coal graphite was converted into GQDs and analysed the optical properties. The coals were dispersed in strong acid and irradiated with ultrasound before oxidized and hydrothermalized into GQDs. UV-vis spectroscopy and photoluminescence spectrophotometer were used to determined the conjugate structure and emission type respectively. The UV-vis spectra showed that the product had conjugated structure in 230 nm. Photoluminescence results confirmed that the GQDs had cyan emission

Paper Citation

in Harvard Style

Dellansyah., Gea S., Andriayani., Harahap M. and Nainggolan G. (2019). Optical Study of Graphene Quantum Dots from Sawahlunto Coal Graphite. In Proceedings of the 1st International MIPAnet Conference on Science and Mathematics - Volume 1: IMC-SciMath, ISBN 978-989-758-556-2, pages 584-586. DOI: 10.5220/0010614000002775

in Bibtex Style

@conference{imc-scimath19,
author={Dellansyah and Saharman Gea and Andriayani and Mahyuni Harahap and Grace Nainggolan},
title={Optical Study of Graphene Quantum Dots from Sawahlunto Coal Graphite},
booktitle={Proceedings of the 1st International MIPAnet Conference on Science and Mathematics - Volume 1: IMC-SciMath,},
year={2019},
pages={584-586},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010614000002775},
isbn={978-989-758-556-2},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 1st International MIPAnet Conference on Science and Mathematics - Volume 1: IMC-SciMath,
TI - Optical Study of Graphene Quantum Dots from Sawahlunto Coal Graphite
SN - 978-989-758-556-2
AU - Dellansyah.
AU - Gea S.
AU - Andriayani.
AU - Harahap M.
AU - Nainggolan G.
PY - 2019
SP - 584
EP - 586
DO - 10.5220/0010614000002775