One-pot liquid-phase exfoliation from graphite to graphene with carbon quantum dots

Nanoscale ◽  
2015 ◽  
Vol 7 (23) ◽  
pp. 10527-10534 ◽  
Author(s):  
Minghan Xu ◽  
Wei Zhang ◽  
Zhi Yang ◽  
Fan Yu ◽  
Yujie Ma ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Liquid Phase ◽  
Carbon Quantum Dots ◽  
One Pot ◽  
Liquid Phase Exfoliation

A green synthetic route for the surface-passivation of carbon dots as an effective multifunctional fluorescent sensor for the recognition and detection of toxic metal ions from aqueous solution

2019 ◽  
Vol 11 (4) ◽  
pp. 490-506 ◽  
Author(s):  
K. Radhakrishnan ◽  
P. Panneerselvam ◽  
M. Marieeswaran
Keyword(s):  
Aqueous Solution ◽  
Quantum Dots ◽  
Carbon Dots ◽  
Surface Passivation ◽  
Fluorescent Sensor ◽  
Toxic Metal ◽  
Carbon Quantum Dots ◽  
Synthetic Route ◽  
One Pot ◽  
Hydrothermal Methods

In this work, a green synthetic route was used to create a number of surface passivated fluorescent carbon quantum dots, which are explored as promising sensing probes, via facile one-pot hydrothermal methods.

One-Pot Large-Scale Synthesis of Carbon Quantum Dots: Efficient Cathode Interlayers for Polymer Solar Cells

2017 ◽  
Vol 9 (17) ◽  
pp. 14953-14959 ◽  
Author(s):  
Yuzhao Yang ◽  
Xiaofeng Lin ◽  
Wenlang Li ◽  
Jiemei Ou ◽  
Zhongke Yuan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Large Scale ◽  
Polymer Solar Cells ◽  
Carbon Quantum Dots ◽  
One Pot ◽  
Large Scale Synthesis

Production of carbon dots during the liquid phase exfoliation of MoS2 quantum dots

Carbon ◽  
2019 ◽  
Vol 155 ◽  
pp. 243-249 ◽  
Author(s):  
Weimin Zhang ◽  
Jinhong Du ◽  
Zhibo Liu ◽  
Dingdong Zhang ◽  
Qinwei Wei ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Liquid Phase ◽  
Carbon Dots ◽  
Liquid Phase Exfoliation

Ultrasmall Bismuth Quantum Dots: Facile Liquid-Phase Exfoliation, Characterization, and Application in High-Performance UV–Vis Photodetector

ACS Photonics ◽  
2017 ◽  
Vol 5 (2) ◽  
pp. 621-629 ◽  
Author(s):  
Chenyang Xing ◽  
Weichun Huang ◽  
Zhongjian Xie ◽  
Jinlai Zhao ◽  
Dingtao Ma ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Liquid Phase ◽  
High Performance ◽  
Liquid Phase Exfoliation

One-Pot Synthesis of Highly Luminescent Carbon Quantum Dots and Their Nontoxic Ingestion by Zebrafish for In Vivo Imaging

2014 ◽  
Vol 20 (19) ◽  
pp. 5640-5648 ◽  
Author(s):  
Yi-Fan Huang ◽  
Xin Zhou ◽  
Rong Zhou ◽  
Hong Zhang ◽  
Kai-Bin Kang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
In Vivo Imaging ◽  
Carbon Quantum Dots ◽  
One Pot ◽  
One Pot Synthesis

scholarly journals Environment-dependent Emission Tuning in the Multicolor Nitrogen-doped Carbon Quantum Dots

2021 ◽  
Author(s):  
Dineshkumar Sengottuvelu ◽  
Abdul Kalam Shaik ◽  
Satish Mishra ◽  
Mahsa Abbaszadeh ◽  
Nathan Hammer ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solid State ◽  
Large Scale ◽  
Low Cost ◽  
Visible Region ◽  
Carbon Quantum Dots ◽  
One Pot ◽  
Nitrogen Doped ◽  
Emission Changes ◽  
Nitrogen Doped Carbon

Carbon quantum dots (CQDs) are fascinating luminous materials from the carbonaceous family and are increasingly being investigated in many optoelectronic applications due to their unique photoluminescence (PL) characteristics. Herein, we report the synthesis of nitrogen-doped carbon quantum dots (NCQDs) from citric acid and m-phenylenediamine using a one-pot hydrothermal approach. The environment-dependent emission changes of NCQDs were extensively investigated in various solvents, in solid-state, and in physically assembled PMMA-PnBA-PMMA copolymer gels in 2-ethyl hexanol. The NCQDs display bright emission in various solvents as well as in solid-state and a temperature-dependent enhanced emission in gels. In detail, these NCQDs exhibit multicolor PL emission across the visible region and its enhancement upon changing the environment (solutions and polymer matrices). The NCQDs also exhibit excitation-dependent PL and solvatochromism, which are rarely observed in CQDs. Most CQDs are non-emissive in the aggregated or solid-state due to the aggregation-caused quenching (ACQ) effect, limiting their solid-state applications. However, these NCQDs display a strong solid-state emission centered at 568 nm ascribed to the presence of abundant surface functional groups, which helps to prevent the - interaction between the NCQDs and to overcome the ACQ effect in the solid-state. Interestingly, the NCQD containing gels display a significant fluorescence enhancement than the NCQDs in 2-ethyl hexanol solution because of the interaction between the polar PMMA blocks and NCQDs. This research opens up the development of large-scale, low-cost multicolor phosphor for the fabrication of optoelectronic devices, sensing, and bioimaging applications.

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