Carbon nanodots with tunable luminescence properties synthesized by electrical discharge in octane

• DOI: 10.1007/s42823-020-00147-9
• Publication Date: 2020-06-02T02:03:32Z
• Authors: Alena Nevar; Natalie Tarasenka; Mikhail Nedelko; Nikolai Tarasenko
• Keywords: Nanodot; Carbon fibers; Passivation

We report on the one-step synthesis of luminescent carbon nanodots (C-dots) via an electrical discharge between two graphite electrodes submerged into organic solvent (octane). This is a simple approach for the fabrication of C-dots with tunable photoluminescence (PL) that differs from the other preparation methods, as no post-passivation step is required. The synthesized carbon nanoparticles are of spherical shape and their size is distributed in the range of 2–5 nm and exhibit luminescence sensitive to excitation wavelength.