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

Autor: Linlin Wang, Won Mook Choi, Jin Suk Chung, Seung Hyun Hur
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Nanoscale Research Letters, Vol 15, Iss 1, Pp 1-10 (2020)
Druh dokumentu: article
ISSN: 1556-276X
DOI: 10.1186/s11671-020-03453-3
Popis: Abstract In 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 greater agglomeration. The surface charge of CDs also shows prominent effects on the pH-dependent PL emission properties.
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