| 초록 |
Lightweight shielding materials that can protect devices against undesirable multispectral electromagnetic waves are critical in electronic, medical, military, and aerospace applications. However, the existing shielding materials are heavyweight and work only in a narrow frequency-range. This presentation demonstrates that MXenes, 2D transition metal carbides, nitrides, or carbonitrides, emerging new family of 2D nano materials, reveal multispectral electromagnetic shielding abilities for practical applications. Owing to their high electronic conductivity and tunable surface chemistry, MXenes revealed the largest EMI shielding effectiveness among the synthetic materials ever reported at microwave frequencies. In addition, MXenes showed the high shielding performance not only at tera-hertz frequencies but also at near-IR and mid-IR frequencies. This presentation will discuss about this anomalous shielding feature. |
