Liquid-phase laser ablation synthesis of graphene quantum dots from carbon nano-onions: Comparison with chemical oxidation

RL Calabro, DS Yang, DY Kim - Journal of colloid and interface science, 2018 - Elsevier
Graphene quantum dots (GQDs) have been synthesized reproducibly by chemical oxidation
(CO) of carbon nano-onions (nCNOs) and a one-step pulsed laser ablation (LA) of nCNOs in …

Laser wavelength modulated pulsed laser ablation for selective and efficient production of graphene quantum dots

S Kang, JH Ryu, B Lee, KH Jung, KB Shim, H Han… - RSC …, 2019 - pubs.rsc.org
Graphene quantum dots (GQDs) and graphene oxide quantum dots (GOQDs) can be used
in different applications such as optoelectronic and biomedical applications, respectively …

Direct synthesis of graphene quantum dots with different fluorescence properties by oxidation of graphene oxide using nitric acid

M Zhao - Applied Sciences, 2018 - mdpi.com
Graphene quantum dots (GQDs) play a critical role in many applications in the electrical and
optical fields. We develop a simple three-step hydrothermal etching method to prepare …

Pulsed laser ablation based synthetic route for nitrogen-doped graphene quantum dots using graphite flakes

S Kang, YK Jeong, JH Ryu, Y Son, WR Kim, B Lee… - Applied Surface …, 2020 - Elsevier
Graphene quantum dots (GQDs) prepared by pulsed laser ablation in liquid (PLAL) process
face barriers to commercialization due to their poor optical properties and the use of …

Single-step synthesis of graphene quantum dots by femtosecond laser ablation of graphene oxide dispersions

P Russo, R Liang, E Jabari, E Marzbanrad… - Nanoscale, 2016 - pubs.rsc.org
In the last few years, graphene quantum dots (GQDs) have attracted the attention of many
research groups for their outstanding properties, which include low toxicity, chemical stability …

Controlled nitrogen doping of graphene quantum dots through laser ablation in aqueous solutions for photoluminescence and electrocatalytic applications

RL Calabro, DS Yang, DY Kim - ACS Applied Nano Materials, 2019 - ACS Publications
Nitrogen-doped graphene quantum dots (N-GQDs) have promising applications in catalysis
and photoluminescence, but many existing synthetic methods require uses of harsh …

Large scale preparation of graphene quantum dots from graphite with tunable fluorescence properties

Y Sun, S Wang, C Li, P Luo, L Tao, Y Wei… - Physical Chemistry …, 2013 - pubs.rsc.org
We report an improved Hummers method for synthesizing graphene quantum dots (GQDs)
by directly oxidizing and etching graphite powders. The yield of GQDs is as high as …

Luminescent graphene quantum dots fabricated by pulsed laser synthesis

K Habiba, VI Makarov, J Avalos, MJF Guinel… - Carbon, 2013 - Elsevier
Graphene has been the subject of intense research in recent years due to its unique
electrical, optical and mechanical properties. Furthermore, it is expected that quantum dots …

Hydrothermal route to graphene quantum dots: Effects of precursor and temperature

JD Xie, GW Lai, MM Huq - Diamond and Related Materials, 2017 - Elsevier
This work adopts a hydrothermal approach to produce graphene quantum dots (GQDs) from
different precursors including carbon nanotube (CNT), graphene oxide (GO), and carbon …

[HTML][HTML] Role of C–N configurations in the photoluminescence of graphene quantum dots synthesized by a hydrothermal route

FA Permatasari, AH Aimon, F Iskandar, T Ogi… - Scientific reports, 2016 - nature.com
Graphene quantum dots (GQDs) containing N atoms were successfully synthesized using a
facile, inexpensive and environmentally friendly hydrothermal reaction of urea and citric acid …