Figure 3
From: Enhanced paramagnetism of mesoscopic graphdiyne by doping with nitrogen

(a) XPS spectra of GDY and N-doped GDY. (b,c) The fine-scanned C 1 s XPS spectra of GDY and N-GDY respectively. (d) Fine-scanned N 1 s XPS spectrum of N-GDY.
From: Enhanced paramagnetism of mesoscopic graphdiyne by doping with nitrogen
(a) XPS spectra of GDY and N-doped GDY. (b,c) The fine-scanned C 1 s XPS spectra of GDY and N-GDY respectively. (d) Fine-scanned N 1 s XPS spectrum of N-GDY.