Table 1.
Comparison of EMI SE of representative flexible EMI shielding materials
| Materials | Thickness (mm) | Density (g cm−3) | EMI SE (dB) | EMI SSE (dB cm2 g−1) | Refs |
|---|---|---|---|---|---|
| PI | 2.5 | 0.076 | 26.1–28.8 | 1373–1518 | [80] |
| Graphene aerogel | 2.5 | – | 43.29 | – | [165] |
| Graphene aerogel | 5 | 0.006 | – | 6743 | [97] |
| Graphene foam | 0.3 | 0.06 | 25.2 | – | [100] |
| MXene foams | – | – | 70 | – | [105] |
| Microsphere@void@ MXene | 0.01 | – | 46.51–59.76 | 18,637.14 | [106] |
| CNTs/RGO foam | 2 | 5.7 | 31.2 | 547 | [117] |
| CNT sponge/epoxy | 3 | – | 53.14 | – | [118] |
| PIPD-g-PDDA/Au | 0.02 | – | 66.9 | 15,890 | [136] |
| GF/CNT/PDMS | – | – | 75 | 833 | [119] |
| CNTs aerogel | 1.6 | – | 29.8 | – | [74] |
| CNTs/RGO | 2 | – | 31.2 | 547 | [116] |
| Ag@C | 3 | 0.00382 | 70.1 | 61,169 | [120] |
| d-Ti3C2Tx/r-CNFs | 0.015 | – | 42.7 | – | [22] |
| MXene/AgNW | – | – | 80 | 3725.6 | [99] |
| rGO/epoxy | – | 0.06 | 38 | 500 | [125] |
| PVDF/MWCNT/GNPs/Ni | 0.3 | – | 43.7 | – | [128] |
| GF/PEDOT:PSS | – | 0.0182 | 91.9 | 3124 | [134] |
| Cu-wrapped polymer nanofiber | 0.0025 | 1.6 | 53 | 232,860 | [132] |
| PAN/CNT/Fe3O4 | 1.5 | – | 59.85 | – | [147] |
| PPy/MXene | 1.3 | – | 90 | 1000 | [140] |
| CuxS/PAN | 0.423 | 0.044 | 29–31 | 16,655.92 | [131] |
| MCP-SiC composite paper | 0.3 | – | 67 | 1– | [137] |
| AgNWs/cellulose films | 0.0445 | – | 101 | 5571 | [138] |
| PP/PDA/AgNPs/PDMS | – | 0.263 | 71.2 | 270.7 | [139] |
| AgNF | 0.1 | – | 76 | – | [143] |
| PEBAX/graphene | – | – | 30.7 | – | [145] |
| Fe3O4@Ti3C2Tx/GF/PDMS | – | – | 77–80 | – | [146] |