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Multicolor Emitting N-Doped Carbon Dots Derived from Ascorbic Acid and Phenylenediamine Precursors

Linlin Wang, Won Mook Choi, Jin Suk Chung, Seung Hyun Hur
2020 Nanoscale Research Letters  
AbstractIn this research, we report the green, blue, and orange color emitting N-doped carbon dots (CDs), which are being synthesized from ascorbic acid and o-/m-/p-phenylenediamine (o-PDA, m-PDA, and p-PDA, respectively). The effects of the solvent polarity and solution pH on the PL emission properties of the as-synthesized CDs have been systematically investigated. It has been observed that the PL emission of the as-synthesized CDs decreases with the increase in solvent polarity due to the
more » ... arity due to the greater agglomeration. The surface charge of CDs also shows prominent effects on the pH-dependent PL emission properties.
doi:10.1186/s11671-020-03453-3 pmid:33270167 fatcat:dumzpdwiifbp7iyufnawhmik4e