Table 3 CQDs Fluorescence lifetimes decay analysis.

From: Ultrasensitive optical detection of Fe3+ ions using fluorescent carbon quantum dots derived from Simmondsia Chinensis Jojoba leaves

Synthesis CQDs

Different lifetimes (ns)

Average lifetimes (ns)

CQDS

\({\tau }_{1}=\) 1.988 (\({\text{B}}_{1}=0.0308)\)

\(7.9 \pm 0.2\)

\({\tau }_{2}=\) 6.327 (\({\text{B}}_{2}=0165)\)

\({\tau }_{3}=\) 17.75 (\({\text{B}}_{3}=0.0030)\)

CQDs + 30 µL Fe3+

\({\uptau }_{1}=1.982 ({\text{B}}_{1}=0.0303)\)

\(8.1\pm 0.2\)

\({\tau }_{2}=6.353 \left({\text{B}}_{2 }= 0.0169\right)\)

\({\tau }_{3}=17.72 ({\text{B}}_{3}=0.0033)\)

CQDs + 60 µL Fe3+

\({\uptau }_{1}=2.038 ({\text{B}}_{1}= 0.0306)\)

\(8.3\pm 0.2\)

\({\uptau }_{2}= 6.652 \left({\text{B}}_{2}=0.0167\right)\)

\({\tau }_{3}= 18.47 ({\text{B}}_{3}=0.0031)\)

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