Reversibly Stretchable, Optically Transparent Radio-Frequency Antennas Based on Wavy Ag Nanowire Networks

Byoung Soo Kim, Keun Young Shin, Jun Beom Pyo, Jonghwi Lee, Jeong Gon Son, Sang-Soo Lee, Jong Hyuk Park

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

We report a facile approach for producing reversibly stretchable, optically transparent radio-frequency antennas based on wavy Ag nanowire (NW) networks. The wavy configuration of Ag NWs is obtained by floating the NW networks on the surface of water, followed by compression. Stretchable antennas are prepared by transferring the compressed NW networks onto elastomeric substrates. The resulting antennas show excellent performance under mechanical deformation due to the wavy configuration, which allows the release of stress applied to the NWs and an increase in the contact area between NWs. The antennas formed from the wavy NW networks exhibit a smaller return loss and a higher radiation efficiency when strained than the antennas formed from the straight NW networks, as well as an improved stability in cyclic deformation tests. Moreover, the wavy NW antennas require a relatively small quantity of NWs, which leads to low production costs and provides an optical transparency. These results demonstrate the potential of these wavy Ag NW antennas in applications of wireless communications for wearable systems.

Original languageEnglish
Pages (from-to)2582-2590
Number of pages9
JournalACS Applied Materials and Interfaces
Volume8
Issue number4
DOIs
Publication statusPublished - 2016 Feb 3

Keywords

  • radio-frequency antenna
  • silver nanowire network
  • stretchable transparent antenna
  • wavy configuration
  • wearable antenna

ASJC Scopus subject areas

  • Materials Science(all)

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