Ethylene diamine mediated cobalt nanoparticle studded graphene oxide quantum dots with tunable photoluminescence properties

RSC Advances ◽  
2016 ◽  
Vol 6 (71) ◽  
pp. 67102-67112 ◽  
Author(s):  
Upama Baruah ◽  
Devasish Chowdhury
Keyword(s):  
Quantum Dots ◽  
Graphene Oxide ◽  
Ethylene Diamine ◽  
Oxide Nanoparticles ◽  
Photoluminescence Properties ◽  
Cobalt Oxide Nanoparticles ◽  
Fluorescence Switching ◽  
Graphene Oxide Quantum Dots ◽  
Cobalt Nanoparticle

The present study demonstrates ethylene diamine mediated in situ synthesis of cobalt oxide nanoparticles (Co3O4NPs) studded on graphene oxide quantum dots (GOQDs) showing reversible on/off fluorescence switching.

scholarly journals Tunable optical properties of OH-functionalised graphene quantum dots

2016 ◽  
Vol 4 (36) ◽  
pp. 8429-8438 ◽  
Author(s):  
K. R. Geethalakshmi ◽  
Teng Yong Ng ◽  
Rachel Crespo-Otero
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Graphene Oxide ◽  
Graphene Quantum Dots ◽  
Photoluminescence Properties ◽  
Electron Hole ◽  
Oh Groups ◽  
Optical Gap ◽  
Tunable Optical Properties ◽  
Graphene Oxide Quantum Dots

Functionalisation with OH groups can tune the optical properties of Graphene oxide quantum dots (GO-QDs). Selective functionalisation of positions with large electron–hole separation offers a strategy to control the optical gap and photoluminescence properties.

Heterogeneity in the fluorescence of graphene and graphene oxide quantum dots

2017 ◽  
Vol 184 (3) ◽  
pp. 871-878 ◽  
Author(s):  
Siobhan J. Bradley ◽  
Renee Kroon ◽  
Geoffry Laufersky ◽  
Magnus Röding ◽  
Renee V. Goreham ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Oxide ◽  
Graphene Oxide Quantum Dots
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