scholarly journals Avenue to Large-Scale Production of Graphene Quantum Dots from High-Purity Graphene Sheets Using Laboratory-Grade Graphite Electrodes

ACS Omega ◽  
2020 ◽  
Vol 5 (30) ◽  
pp. 18831-18841
Author(s):  
Sakshi Kapoor ◽  
Aaruni Jha ◽  
Hilal Ahmad ◽  
S. S. Islam
Keyword(s):  
Quantum Dots ◽  
High Purity ◽  
Large Scale ◽  
Graphene Quantum Dots ◽  
Graphene Sheets ◽  
Scale Production ◽  
Graphite Electrodes ◽  
Large Scale Production

Femtosecond laser ablation of highly oriented pyrolytic graphite: a green route for large-scale production of porous graphene and graphene quantum dots

Nanoscale ◽  
2014 ◽  
Vol 6 (4) ◽  
pp. 2381-2389 ◽  
Author(s):  
Paola Russo ◽  
Anming Hu ◽  
Giuseppe Compagnini ◽  
Walter W. Duley ◽  
Norman Y. Zhou
Keyword(s):  
Quantum Dots ◽  
Femtosecond Laser ◽  
Large Scale ◽  
Coal Gasification ◽  
Pyrolytic Graphite ◽  
Graphene Quantum Dots ◽  
Femtosecond Laser Ablation ◽  
Scale Production ◽  
Porous Graphene ◽  
Large Scale Production

Large scale production of porous graphene and graphene quantum dots through femtosecond laser exfoliation and coal gasification.

Large scale production of graphene quantum dots through the reaction of graphene oxide with sodium hypochlorite

RSC Advances ◽  
2016 ◽  
Vol 6 (60) ◽  
pp. 54644-54648 ◽  
Author(s):  
Xuejiao Zhou ◽  
Shouwu Guo ◽  
Peng Zhong ◽  
Yong Xie ◽  
Zhimin Li ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Oxide ◽  
Uv Irradiation ◽  
Sodium Hypochlorite ◽  
Oxygen Radicals ◽  
Large Scale ◽  
Graphene Quantum Dots ◽  
Scale Production ◽  
Large Scale Production

A facile method to produce graphene quantum dots on a large scale was introduced with the usage of oxygen radicals under UV irradiation.

scholarly journals Facile Synthesis of Water-Soluble Graphene Quantum Dots/Graphene for Efficient Photodetector

MRS Advances ◽  
2018 ◽  
Vol 3 (15-16) ◽  
pp. 817-824 ◽  
Author(s):  
Sanju Gupta ◽  
Jared Walden ◽  
Alexander Banaszak ◽  
Sara B. Carrizosa
Keyword(s):  
Quantum Dots ◽  
Large Scale ◽  
Graphene Quantum Dots ◽  
Blue Emission ◽  
Water Soluble ◽  
Monolayer Graphene ◽  
Graphene Sheets ◽  
Scale Production ◽  
Research Activity ◽  
High Efficient

ABSTRACTGraphene quantum dots (GQDs) are zero-dimensional material with characteristics derived from functionalized graphene precursors are graphene sheets a few nanometers in the lateral dimension having a several-layer thickness. Combining the structure of graphene with the quantum confinement and edge effects, GQDs possess unique chemical behavior and physical properties. Intense research activity in GQDs is attributed to their novel phenomena of charge transport and light absorption and photoluminescence excitation. The optical transitions are known to be available up to 6 eV in GQDs, applicable for ultraviolet photonics and optoelectronics devices, biomedical imaging capabilities and technologies. We present facile hydrothermal and solvothermal methods for synthesizing homogenous dispersed and uniform sized GQDs with a strong greenish and violet blue emission peaks at ∼10-14% yield. This approach enabled a large-scale production of aqueous GQD dispersions without the need for chemical stabilizers. The structure and emission mechanism of the GQDs have been studied by combining extensive characterization techniques and rigorous control experiments. We further demonstrate the distinctive advantages of such GQDs as high-performance photodetectors (PDs). Here we also report high-efficient photocurrent (PC) behaviors consisting of multilayer GQDs sandwiched between monolayer graphene sheets. It is conceivable that the observed unique PD characteristics proved to be dominated by tunneling of charge carriers which occurs through the multiple energy states within the bandgap of GQDs, based on bias-dependent variation of the band profiles. This results in novel dark current and PC behaviors. The external quantum efficiency (η) is predicted to be 47% at applied potential 2 V. These findings highlight rich photophysics and comparable performance of graphene/graphene oxide hybrids opening up potential applications as optoelectronic devices.

Large scale production of nanoporous graphene sheets and their application in lithium ion battery

Carbon ◽  
2015 ◽  
Vol 84 ◽  
pp. 469-478 ◽  
Author(s):  
Jianan Zhang ◽  
Binghao Guo ◽  
Yongqiang Yang ◽  
Wenzhuo Shen ◽  
Yanmei Wang ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Large Scale ◽  
Lithium Ion ◽  
Graphene Sheets ◽  
Scale Production ◽  
Large Scale Production ◽  
Nanoporous Graphene

An improved protocol for large scale production of high purity ‘Fc’ fragment of human immunoglobulin G (IgG-Fc)

2020 ◽  
Vol 1159 ◽  
pp. 122400
Author(s):  
Jatin B. Tandale ◽  
Shamkant B. Badgujar ◽  
Babasaheb U. Tandale ◽  
Unmesh Angre ◽  
Siddharth B. Daftary ◽  
...  
Keyword(s):  
Immunoglobulin G ◽  
High Purity ◽  
Large Scale ◽  
Human Immunoglobulin ◽  
Scale Production ◽  
Fc Fragment ◽  
Human Immunoglobulin G ◽  
Large Scale Production

Large-Scale Production of Single-Wall Carbon Nanohorns with High Purity

2008 ◽  
Vol 112 (5) ◽  
pp. 1330-1334 ◽  
Author(s):  
Takeshi Azami ◽  
Daisuke Kasuya ◽  
Ryota Yuge ◽  
Masako Yudasaka ◽  
Sumio Iijima ◽  
...  
Keyword(s):  
High Purity ◽  
Large Scale ◽  
Scale Production ◽  
Single Wall Carbon ◽  
Carbon Nanohorns ◽  
Large Scale Production ◽  
Single Wall Carbon Nanohorns
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