Anomalous fluorescence enhancement and fluorescence quenching of graphene quantum dots by single walled carbon nanotubes

2018 ◽  
Vol 20 (6) ◽  
pp. 4527-4537 ◽  
Author(s):  
Ruma Das ◽  
Gone Rajender ◽  
P. K. Giri

We explore the mechanism of the fluorescence enhancement and fluorescence quenching effect of single walled carbon nanotubes (SWCNTs) on highly fluorescent graphene quantum dots (GQDs) over a wide range of concentrations of SWCNTs.

2012 ◽  
Vol 11 (02) ◽  
pp. 1250022 ◽  
Author(s):  
SAMSON KHENE ◽  
TEBELLO NYOKONG

In this work nickel octadecylphthalocyanine (NiPc(C10H21)8) and cadmium telluride quantum dots (QDs) capped with thioglycolic acid (TGA) are adsorbed on single walled carbon nanotubes (SWCNT) to form NiPc(C10H21)8 -SWCNT-QDs conjugate. X-ray photoelectron, ultra violet/visible and Raman spectroscopies are used to characterize the conjugate. SWCNT, poly- Ni(O)Pc(C10H21)8 , NiPc(C10H21)8 -SWCNT and NiPc(C10H21)8 -SWCNT-QDs complexes are used to modify glassy carbon electrode (GCE) and used for the electro-oxidation of pentachlorophenol as a test molecule. NiPc(C10H21)8 -SWCNT-QDs electrode gave the best detection current for pentachlorophenol.


2020 ◽  
Vol MA2020-01 (8) ◽  
pp. 743-743 ◽  
Author(s):  
Amirmostafa Amirjani ◽  
Theodoros Tsoulos ◽  
Alessandra Antonucci ◽  
Shang-Jung Wu ◽  
Giulia Tagliabue ◽  
...  

2016 ◽  
Vol 8 (39) ◽  
pp. 7254-7259 ◽  
Author(s):  
T. C. Canevari ◽  
F. H. Cincotto ◽  
M. Nakamura ◽  
S. A. S. Machado ◽  
H. E. Toma

A new hybrid nanomaterial based on single-walled carbon nanotubes incorporating nanocrystalline carbon quantum dots (SWCNT/C-dots) was developed.


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