Research Output per year
Electromagnetic interference shielding efficiency has been measured for highly electrically conducting Polyaniline-Camphor Sulfonic Acid. The polymer is spin coated from m-cresol solution on an electrically insulating substrate as a 1–30 μm thick layer having a conductivity of 10–100 S/cm. The shielding efficiencies (SE) for these electrically thin polyaniline films have been measured in the near-field with a dual-chamber box and in the far-field with a transmission line method in the frequency range 0.1–1000 MHz. The measurements show that SE depends primarily on the surface resistance both in the far-field and the near-field. An additional effect >10 dB is seen when the two layer structure is measured in the near field. By using layer structures, the SE is >40 dB up to ca. 100 MHz in the near-field and 39 dB at 1 GHz in the far-field.
|Title of host publication||Proceedings of the International Conference on Science and Technology of Synthetic Metals (ICSM '96)|
|Subtitle of host publication||Electronic polymers II|
|Editors||Z. Valy Vardeny, Arthur J. Epstein|
|Place of Publication||Amsterdam|
|Publication status||Published - 1997|
|MoE publication type||A4 Article in a conference publication|
|Event||International Conference on Science and Technology of Synthetic Metals ICSM '96 - Snowbird, United States|
Duration: 28 Jul 1996 → 2 Aug 1996
|Conference||International Conference on Science and Technology of Synthetic Metals ICSM '96|
|Period||28/07/96 → 2/08/96|
Mäkelä, T., Pienimaa, S., Taka, T., Jussila, S., & Isotalo, H. (1997). Thin polyaniline films in EMI shielding. In Z. V. Vardeny, & A. J. Epstein (Eds.), Proceedings of the International Conference on Science and Technology of Synthetic Metals (ICSM '96): Electronic polymers II (Vol. 2, pp. 1335-1336). Elsevier.