최호광 배수강 이승기 이상현 이기수 고석영 강재욱 양시영 김태욱 2024-01-19T12:30:45Z 2024-01-19T12:30:45Z 2022-02-17 2022-04 0921-5107 https://pubs.kist.re.kr/handle/201004/115486 We studied the effects that internal porous structures tailored using size-controlled copper nanosheets (Cu NSs) had on the electromagnetic interference (EMI) shielding performance of the resulting Cu NS films. Cu NSs were carefully synthesized as two-dimensional (2D) conductive fillers, and their size was controlled by adjusting the concentrations of the shape modifier (iodine), stabilizer (hexadecylamine) and reductant (glucose). Three kinds of Cu NSs had the size of 3.8 mu m (Max. 10.0 mu m), 8.9 mu m (Max. 28.0 mu m), and 12.2 mu m (Max. 33.7 mu m) and used as a conductive filler for shielding film by spray printing. The films had different surface coverages, film thicknesses, and EMI shielding effectiveness (SE) at a fixed loading weight of 0.6 mg/cm2. The smallest to largest Cu NSs exhibited EMI shielding performances of 6.3 dB, 43.6 dB, and 69.7 dB, respectively, so performance was directly proportional to size. English Elsevier BV Tailoring the internal structure of porous copper film via size-controlled copper nanosheets for electromagnetic interference shielding Article 10.1016/j.mseb.2022.115611 1 Materials Science & Engineering B: Solid-State Materials for Advanced Technology, v.278 Materials Science & Engineering B: Solid-State Materials for Advanced Technology 278 N scie scopus 000807519900002 Materials Science, Multidisciplinary Physics, Condensed Matter Materials Science Physics Article SHAPE-CONTROLLED SYNTHESIS MICROWAVE-ABSORPTION SILVER NANOSHEETS COMPOSITES LIGHTWEIGHT NANOPARTICLES NANOCRYSTALS EFFICIENCY NANOWIRES GLUCOSE Metal nanosheet Copper nanosheet Two-dimensional materials Porous structure Electromagnetic shielding