The realization of EMI shielding in the optoelectronic equipment, especially for optical windows or domes, is still a great challenge. Thus, many electronic facilities must be equipped with high-efficiency EMI shielding for microwave range interference from the ambient environment 1, 2, 3, 4, 5. The rapid growth of the electronic device market not only overcrowds the spectral bands to the different communication channels but also increases the density of electromagnetic emitters in the environment. These excellent properties of CT-MM film, together with its advantages of facile large-area fabrication and scalability in processing on multi-shaped substrates, make CT-MM a powerful technology for transparent EMI shielding in practical applications.Įlectromagnetic interference (EMI) generally consists of many unwanted radiative signals that could introduce noise or malfunction to electronic devices or even cause damage to the human body. Moreover, high–quality CT-MM film is demonstrated on a large–calibre spherical surface. It achieves a shielding effectiveness of ~26 dB, optical transmittance of ~91% and negligible impact on optical imaging performance. The CT-MM film is fabricated using a cost-effective lift-off method based on a crackle template.
We engineered a transparent EMI shielding film with crack-template based metallic mesh (CT-MM) that shows highly homogeneous light transmission and strong microwave shielding efficacy. Our daily electromagnetic environment is becoming increasingly complex with the rapid development of consumer electronics and wireless communication technologies, which in turn necessitates the development of electromagnetic interference (EMI) shielding, especially for transparent components.
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