A Review of Nonvacuum Fabrication Approaches for Transparent Electromagnetic Shielding Materials

With the swift advancement of electronic information technology, there is a growing demand for enhanced shielding effectiveness and optical transparency in electromagnetic shielding materials across various fields, such as wearable electronics, electronic communication, and the military industry. Consequently, the exploration of high-performance electromagnetic shielding materials possessing both transparency and flexibility has become a focal point of research. This Review overviews recent progress in facile and nonvacuum-based approaches for crafting polymer- or glass-based, transparent electromagnetic shielding materials. It compares and summarizes preparation methods and deposition techniques for composite materials. Furthermore, the article explores the challenges related to the intricate balance of transparency, electromagnetic shielding effectiveness, and different methods offering potential solutions. It concludes by outlining prospective directions for the future development of nonvacuum and facile fabrication methods of glass or polymer-based transparent electromagnetic shielding composite materials.