Photovoltaic Properties and Ultrafast Plasmon Relaxation Dynamics of Diamond-Like Carbon Nanocomposite Films with Embedded Ag Nanoparticles

Table 1 Lifetimes of TAS spectra relaxation (the kinetics at 600 nm probe wavelengths are presented because they demonstrate best SNR)

Sample	Excitation wavelength (nm)	Probe wavelength (nm)	τ ₁ (ps)	τ ₂ (ps)
DLC	400	600	0.41 ± 0.02	6.39 ± 0.45
DLC:Ag	406	600	0.75 ± 0.09	6.11 ± 0.60
	470	600	0.70 ± 0.06	7.36 ± 0.48
	627	550	0.36 ± 0.04	–
	736	500	0.22 ± 0.03	–

Lifetimes of the negative signal relaxation of DLC:Ag 22 at.% were explored for TAS data received under excitation at 627 and 736 nm