Table 1.

Luminescence Properties of Carbon Nanodots Collected in Water Versus Heavy Carbon Nanodots at Acidic pH.

Sample	ΦF	〈τ〉F (ns)	τ̄F (ns)	τP (μs)
Water Nanodot	10.2%	7.42 ± 0.05	8.39 ± 0.09	-
Brominated Nanodot	4.85%	4.5 ± 0.2	6.2 ± 0.4	92 ± 7
NaBr Nanodot	8.8%	6.6 ± 0.1	8.7 ± 0.2	-

Φ — quantum yield

〈τ〉 — amplitude weighted lifetime

τ̄ — average lifetime

F – fluorescence

P – phosphorescence