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This is an Open Access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Recorded PL emission spectra of tyrosine-passivated CNDs synthesized at two different temperatures (a) at 220 °C (b) at 300 °C in dry acetone at different excitation wavelengths. The normalized emission spectra are shown in the insets.