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

Authors
Kim, Byoung SooShin, Keun-YoungPyo, Jun BeomLee, JonghwiSon, Jeong GonLee, Sang-SooPark, Jong Hyuk
Issue Date
2016-02-03
Publisher
American Chemical Society
Citation
ACS Applied Materials & Interfaces, v.8, no.4, pp.2582 - 2590
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.
Keywords
SILVER NANOWIRES; WEARABLE ELECTRONICS; PERCOLATION NETWORK; COMMUNICATION; CONDUCTORS; DEVICES; SYSTEMS; DIVERSITY; RADIO; SILVER NANOWIRES; WEARABLE ELECTRONICS; PERCOLATION NETWORK; COMMUNICATION; CONDUCTORS; DEVICES; SYSTEMS; DIVERSITY; RADIO; silver nanowire network; wavy configuration; stretchable transparent antenna; radio frequency antenna; wearable antenna
ISSN
1944-8244
URI
https://pubs.kist.re.kr/handle/201004/124402
DOI
10.1021/acsami.5b10317
Appears in Collections:
KIST Article > 2016
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