Figure 13. (A) Absorption spectrum of 550-CQD; inset, excitation under UV light and (B) Fluorescence emission; inset, photoluminescence of 550-CQD

From

Impregnated Activated Carbon Made from Buffalo Dung: Electrical and Photoluminescence Investigations

Suher M Dawoud, Mouayed A Hussein, Raed K Zaidan

Applied Ecology and Environmental Sciences. 2023, 11(2), 42-53 doi:10.12691/aees-11-2-1