Table 3. Maximum Excitation and Emission Wavelengths, Overall Fluorescence Lifetimes, and Quantum Yields of H–Si NPs Prepared at 160 °C after Passivation with Functional 1-Alkene or 1-Alkyne Molecules.
| coating of Si NP | excitation wavelength (nm) | emission wavelength (nm) | decay timea (ns) | quantum yield (%) |
|---|---|---|---|---|
| Si∼CH=CH–CH2OH | 562 | 650 | 3.7 | 14.3 |
| Si∼CH=CH–CH2NH2 | 577 | 654 | 4.2 | 12.7 |
| Si–C5H12 | 578 | 669 | 3.8 | 12.5 |
| Si∼CH=CH–(CH2)2CH3 | 541 | 651 | 3.7 | 12.1 |
Data fitted by a three-exponential decay.