Figure 6
From: Formation mechanism and optimization of highly luminescent N-doped graphene quantum dots
Characterizations of GQDs-EDA.
(A) Representative TEM images of GQDs-EDA. Insets: HR-TEM image (left) and particles size (diameter) distribution (right). (B) SPM height image of GQDs-EDA. (C) UV-Vis spectrum (black dash curve) and photoluminescence spectra. (D) XPS full scan survey. Inset: high-resolution C 1s and N1s XPS spectra.
