Table 2. List of Semiconducting Materials That Can Be a Prospective Choice as Filler for EMI Shielding Applications.

Sl. no.	filler	matrix	SET/minimum RL	thickness (mm)	frequency	ref
1	(a) MoS2 hierarchical structure (25 wt %)	PVDF	RL= −26.11 dB	2.5	11.36 GHz	(25)
	(b) bulk MoS2		RL= −11.94 dB		∼5.9 GHz
	(c) micrometer-sized MoS2		RL= −12.27 dB		∼13.5 GHz
2	MoS2 hierarchical structure (30 wt %)	PVDF	RL = −27.47 dB	1.5	18.47 GHz	(25)
3	MoS2 hierarchical structure (20 wt %)	PVDF	RL = −32.67 dB	3.5	28.93 GHz	(25)
4	MoS2 (5 wt %)	dopamine-functionalized PU	SET = −5.5 dB	5	18 GHz	(26)
5	Fe3O4 (5 wt %)	dopamine-functionalized PU	SET = −6.3 dB	5	18 GHz	(26)
6	Fe3O4@MoS2 (5 wt %)	dopamine-functionalized PU	SET = −11.6 dB	5	18 GHz	(26)
7	3 wt % MWCNT/5 wt % Fe3O4@MoS2	dopamine-functionalized PU	SET = −36.6 dB	5	18 GHz	(26)
8	MoS2/rGO (10 wt %)	wax	RL = −50.9 dB	2.3	11.7 GHz	(27)
9	MoS2/rGO (10 wt %)	paraffin	RL = −41.53 dB	3	11.7 GHz	(28)
10	(M/MoS2)/rGO (18 wt %)	PVP	RL = −49.7 dB	3	13.7 GHz	(29)
11	α-MnO2 (α-MnO2/paraffin = 1:1 (mass ratio))	paraffin	RL = −41 dB	1.9	8.7 GHz	(30)
12	α-MnO2	PANI	SET = −35–39 dB	∼0.169	8.2–18 GHz	(31)
13	hollow CdSe nanostructure (70 wt %)	paraffin	RL = −31 dB	4	17.8 GHz	(32)
14	CuS nanostructure (20 wt %)	paraffin	RL = −76.4 dB	3.5	12.64 GHz	(33)
15	CuS (28.6 wt %)	PA/PTFE	SET = −27–31 dB	0.6	300 kHz to 3 GHz	(34)
16	PANI/CuS (50 wt % CuS), 20 wt % PANI/CuS	paraffin	SET = −45.2 dB	3	2.8 GHz	(35)
17	CuS/NiFe2O4/graphene (20 wt %)	paraffin	RL = −54.5 dB	2.5	11.4 GHz	(36)
18	CoO nanobelt (70 wt %)	paraffin	RL = −12.3 dB	3	14.2 GHz	(37)
19	CoO microsphere (70 wt %)	paraffin	RL = −8.7 dB	3	14.4 GHz	(37)
20	WS2/rGO (40 wt %)	wax	SET = −20 to −32 dB	∼1.5	2–18 GHz	(38)
21	Fe2O3 (10 wt %)	PVA	RL = −38.85 dB	0.5	10.4 GHz	(50)
22	CdS-MWCNTs (10 wt %)	paraffin wax	RL = −25 dB	3.5	8–9 GHz	(39)
23	WO3 (40 wt %)	PANI/CSA	SET ∼ −13.8 dB		14.2 GHz	(40)
24	WO3/MnFe2O3 (50/50 wt %) (50 wt % as core)	PANI (as shell)	RL = −12 dB	1.5	8.8 and 11.6 GHz	(41)
25	graphene@Fe3O4@PANI@WO3 (70 wt %) (mass ratio of graphene@Fe3O4/WO3 = 2:1)	paraffin	RL = −46.7 dB	4	9.3 GHz	(42)
26	MoO3/Mo4O11/MoO2 (60 wt %)	paraffin	RL = −59.2 dB	4.6	10.8 GHz	(43)
27	1D MoS2/MoO3 (20 wt %)	PVDF	RL = −38.5 dB	1.9	8.7 GHz	(44)
28	BaTiO3 nanotubes (70 wt %)	paraffin	RL = −21.8 dB	2	15 GHz	(45)
29	BaTiO3	PEK	SET = −11 dB	2	8.2–12.4 GHz	(46)
30	(BaTiO3/polyaniline = 1:3)	PU	RL = −15 dB	∼ 3	10 GHz	(47)
31	rGO@BaTiO3 (wt % mentioned in RL/SET column)	PVDF	RL = −45.3 dB (15 wt %), SET = −9.8 dB (30 wt %)	4.5	5.4 GHz (for RL), 10 GHz (for SET)	(48)
32	ZnO dendritic nanostructure (50 vol %)	paraffin	RL = −42 dB	5	3.6 GHz	(49)
33	TiO2 (10 wt %)	PVA	RL = −32.90 dB	0.5	9.8 GHz	(50)
34	ZnO (10 wt %)	PVA	RL = −33.65 dB	0.5	10.4 GHz	(50)
35	TiO2	Pani/HA	RL = −31 dB		10 GHz	(51)
36	TiO2/γ-Fe2O3	Pani	SEA = −45 dB		∼14.5 GHz	(52)
37	BaFe12O19/TiO2 (1:1)	polypyrrole	RL = −45 dB	2	17.5 GHz	(53)
38	ZnO/ZnAl2O4 (40 wt %)	paraffin	RL/RC = −25 dB	2.86	9.7 GHz	(54)
39	ZnO/MWCNT (40 wt %)	wax	RL = −36 dB	5	5–6 GHz	(55)
40	C/ZnO (40 wt %)	paraffin wax	RL/RC = −52 dB	1.75	11 GHz	(56)
41	rGO/ZnO (10 wt %)	paraffin	RL = −25.31 dB	3	11.5 GHz	(57)
42	SrTiO3 (50 wt %)	epoxy	RL = −48 dB	1	14.5 GHz	(58)
43	SrTiO3 (0.3 volume fraction)	epoxy	RL = −34 dB	5	4.3 GHz	(59)
44	SnO2 NWs (20 vol %)	paraffin	RL = −32.5 dB	5	14 GHz	(60)
45	SnO2 foam (30 wt %)	paraffin wax	RL = −37.6 dB	2	17.1 GHz	(61)
46	Fe3O4@SnO2 (Fe3O4@SnO2/epoxy = 1:5 by mass)	epoxy	RL = −36.5 dB	2	7 GHz	(62)