Glowing Graphene Quantum Dots and Carbon Dots: Properties, Syntheses, and Biological Applications

Small ◽  
2014 ◽  
Vol 11 (14) ◽  
pp. 1620-1636 ◽  
Author(s):  
Xin Ting Zheng ◽  
Arundithi Ananthanarayanan ◽  
Kathy Qian Luo ◽  
Peng Chen
Keyword(s):  
Quantum Dots ◽  
Carbon Dots ◽  
Graphene Quantum Dots ◽  
Biological Applications

Preparation of Graphene Quantum Dots and Their Biological Applications

2016 ◽  
Vol 31 (4) ◽  
pp. 337 ◽  
Author(s):  
SUN Xiao-Dan ◽  
LIU Zhong-Qun ◽  
YAN Hao
Keyword(s):  
Quantum Dots ◽  
Graphene Quantum Dots ◽  
Biological Applications

Luminescent graphene quantum dots as new fluorescent materials for environmental and biological applications

2014 ◽  
Vol 54 ◽  
pp. 83-102 ◽  
Author(s):  
Liping Lin ◽  
Mingcong Rong ◽  
Feng Luo ◽  
Dongmei Chen ◽  
Yiru Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Quantum Dots ◽  
Biological Applications ◽  
Fluorescent Materials

scholarly journals Facile synthesis of preformed mixed nano-carbon structure from low rank coal

2018 ◽  
Vol 36 (1) ◽  
pp. 14-20 ◽  
Author(s):  
B. Manoj ◽  
Ashlin M. Raj ◽  
George Thomas Chirayil
Keyword(s):  
Quantum Dots ◽  
Carbon Dots ◽  
Bituminous Coal ◽  
Graphene Quantum Dots ◽  
Energy Resource ◽  
Low Rank ◽  
Tem Analysis ◽  
Graphene Layers ◽  
Simple Chemical ◽  
Nano Carbon

Abstract Coal is a natural energy resource which is mainly used for energy production via combustion. Coal has nanocrystals embedded in it, formed during the coalification process, and is an ideal precursor for nano-carbon dots and diamonds. Herein, we report a facile top-down method to synthesise nanodots and diamonds of the size of 5 nm to 10 nm from three different types of coal by simple chemical leaching. TEM analysis revealed the formation of a mixture of carbon dots, graphene layers, and quantum dots in bituminous coal and sub-bituminous coal. Raman analysis confirmed the existence of synthesized nanodiamond and nano-carbon mixed phase with defects associated with it. It is concluded that graphene quantum dots, nanodiamonds, graphene sheets and carbon dots present in coal can be extracted by simple chemical treatment. These structures can be tuned to photoluminescent material for various optoelectronic applications or energy harvesting devices like super capacitors.

Excitation dependence and independence of photoluminescence in carbon dots and graphene quantum dots: insights into the mechanism of emission

Nanoscale ◽  
2021 ◽  
Author(s):  
Abu Bakar Siddique ◽  
Syed Minhaz Hossain ◽  
Ashit Kumar Pramanick ◽  
Mallar Ray
Keyword(s):  
Quantum Dots ◽  
Carbon Dots ◽  
Carbon Nanostructures ◽  
Graphene Quantum Dots ◽  
Emission Characteristics ◽  
Emission Mechanism ◽  
Insight Into

A pattern in excitation dependent and independent emission characteristics provides important insight into the emission mechanism from 0D carbon nanostructures.  

Chemically doped fluorescent carbon and graphene quantum dots for bioimaging, sensor, catalytic and photoelectronic applications

Nanoscale ◽  
2016 ◽  
Vol 8 (5) ◽  
pp. 2532-2543 ◽  
Author(s):  
Yan Du ◽  
Shaojun Guo
Keyword(s):  
Quantum Dots ◽  
Carbon Dots ◽  
Graphene Quantum Dots ◽  
Chemical Doping ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

Chemical doping for fluorescent carbon dots endows acceptable properties for diverse applications.

Ratiometric fluorescence response of a dual light emitting reduced carbon dot/graphene quantum dot nanohybrid towards As(iii)

2019 ◽  
Vol 7 (33) ◽  
pp. 10309-10317 ◽  
Author(s):  
Satyabrat Gogoi ◽  
Rashmita Devi ◽  
Hemant Sankar Dutta ◽  
Manobjyoti Bordoloi ◽  
Raju Khan
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Carbon Dots ◽  
Fluorescence Probe ◽  
Graphene Quantum Dots ◽  
Ratiometric Fluorescence ◽  
Carbon Dot ◽  
Light Emitting ◽  
Graphene Quantum Dot ◽  
Fluorescence Response

A dual light emitting fully carbon-based nanohybrid system comprising of glutathione-functionalized reduced carbon dots and graphene quantum dots is fabricated as ratiometric fluorescence probe for As(iii).

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