Microstructure Hierarchical Model of Competitive e+-Ps Trapping in Nanostructurized Substances: from Nanoparticle-Uniform to Nanoparticle-Biased Systems

Table 2 Fitting parameters and PAL trapping modes describing positron annihilation in pelletized As₄S₄/ZnS nanocomposites (the channel width of PAL measurements is 50 ns)

Composite As₄S₄:ZnS	PAL spectra fitting parameters					Positron trapping modes				Ps trapping modes
	τ ₁	τ ₂	τ ₃	I ₂	I ₃	τ _b	κ _d	τ ₂ -τ _b	τ ₂ /τ _b	R	f _v
	ns	ns	ns	a.u.	a.u.	ns	ns⁻¹	ns	a.u.	nm	%
5:0	0.209	0.433	2.089	0.212	0.010	0.235	0.53	0.20	1.84	0.296	0.19
4:1	0.202	0.399	1.856	0.250	0.011	0.231	0.61	0.17	1.73	0.275	0.17
1:1	0.202	0.387	1.705	0.288	0.015	0.235	0.69	0.15	1.65	0.259	0.20
1:4	0.194	0.378	1.804	0.286	0.013	0.226	0.73	0.15	1.68	0.269	0.19
0:5	0.185	0.375	1.955	0.341	0.008	0.224	0.94	0.15	1.67	0.284	0.14