[Asia Economy Reporter Junho Hwang] Domestic researchers have developed an ultralight electromagnetic wave shielding material. It is a material that can shield electromagnetic waves exceeding 116 dB with a film about 40 micrometers thick, the thickness of a human hair. It is expected to be used not only in everyday life such as smartphones but also as stealth material or for blocking electromagnetic pulses (EMP).
Jongmin Koo, director of the Korea Institute of Science and Technology, along with Professor Myungki Kim of Korea University and Professor Yuri Gogochi of Drexel University in the United States, announced on the 22nd that they have developed a Ti3CN MXene electromagnetic wave absorbing material that can dramatically improve existing electromagnetic interference problems.
Development of Next-Generation Electromagnetic Wave Shielding Material
The material developed by the research team is cheaper, lighter, and easily applicable in various fields such as electronic communications compared to existing shielding materials. It is a material equipped with all the functions necessary for the advancement trend of electronic communication devices.
The research team advanced the electromagnetic wave shielding technology of the Ti3C2 MXene material developed in 2016 to the next level and developed the Ti3CN MXene material, which can also reduce secondary damage caused by reflected harmful electromagnetic waves. Ti3C2 MXene material is a compound of titanium transition metal and carbon, composed of a two-dimensional planar structure. Ti3CN MXene material is a compound of titanium, carbon, and nitrogen, with a plate-like structure 1 nm thick.
The research team formed a Ti3CN MXene film through a simple heat treatment. Performance tests showed that it exhibited high electromagnetic wave shielding performance exceeding 116 dB at a thickness of about 40 micrometers, similar to the thickness of a human hair.
Potential Use for EMP Shielding and Stealth Material
The research team stated that comprehensive research support is needed to establish a collaborative research system for mass production of nanomaterials, efficient component manufacturing technology, and equipment application technology to commercialize this material.
The research team said, "As an ultralight electromagnetic wave shielding and absorbing material technology compared to existing materials, it can be used as an electromagnetic wave shielding and absorbing material for highly integrated mobile electronic communication devices," adding, "It is also expected to be used for EMP shielding and stealth materials."
Currently, the research team is participating in the construction technology for fixed electromagnetic wave protection structures and plans to develop high-performance thin-film shielding coating technology that can enhance the electromagnetic wave protection performance of electromagnetic wave shielding concrete through this.
Meanwhile, the research results were published in the international academic journal Science on the 24th.
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