N-Doped Graphene Quantum Dots Using Different Bases
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Photoluminescent graphene quantum dots (GQDs) have received tremendous attention due to their sui generis chemical, electronic and optical properties but fabricating the pristine quality of GQD is extremely challenging. Herein, we have reported the pyrolysis of citric acid which in the presence of different bases viz. triethylamine, ammonium hydroxide and urea, produced N-doped GQDs at different pH. The effect of different pH has been studied in detail to optimize the formation conditions of the GQD. Ultraviolet–visible (UV–Vis) spectroscopy and normalized fluorescence spectra were applied to analyze the optical properties of the GQD. The mean particle size was analyzed by a particle size analyzer (dynamic light dispersion).
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2019 ◽
Vol 11
(42)
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pp. 39035-39045
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2019 ◽
Vol 7
(2)
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pp. 237-246
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2019 ◽
Vol 113
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pp. 130-136
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2019 ◽
Vol 10
(2)
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pp. 025005
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