Figure 6. Fluorescence of the dark-brown residue under UV light (λ ≈ 400 nm).

From

Green and Facile Fabrication of Carbon Quantum Dot-Based Solar Cells

Edwin Bogdan, Leo Weise, Thomas Waitz

World Journal of Chemical Education. 2025, 13(3), 48-53 doi:10.12691/wjce-13-3-2