File Name : figure s1.png

Caption : figure s1 fluorescence emission spectra of o-pncs in water, inset show solution colors under natural light and 365 nm uv light, with o-pncs on the left side and a-pncs on the right side.

File Name : figure s2.png

Caption : figure s2 fluorescence emission spectra of o-pncs and a-pncs in ethanol, the inset shows solution colors under 365 nm uv light.