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

Title
Reversibly Stretchable, Optically Transparent Radio-Frequency Antennas Based on Wavy Ag Nanowire Networks
Authors
이상수박종혁손정곤표준범신근영김병수Jonghwi Lee
Keywords
silver nanowire network; wavy configuration; stretchable transparent antenna; radio-frequency antenna; wearable antenna
Issue Date
2016-02
Publisher
ACS Applied Materials & Interfaces
Citation
VOL 8, NO 4, 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.
URI
http://pubs.kist.re.kr/handle/201004/59087
ISSN
19448244
Appears in Collections:
KIST Publication > Article
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