Abstract
| Original language | English |
|---|---|
| Article number | 1700845 |
| Number of pages | 9 |
| Journal | Advanced Functional Materials |
| Volume | 27 |
| DOIs | |
| Publication status | Published - 2017 |
Keywords
- Apexcardiogram
- Gold nanowires
- Silver nanowires
- Stretchable sensors
- Strain sensors
Cite this
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Percolating network of ultrathin gold nanowires and silver nanowires toward “invisible” wearable sensors for detecting emotional expression and apexcardiogram. / Ho, My Duyen; Ling, Yunzhi; Yap, Lim Wei; Wang, Yan; Dong, Dashen; Zhao, Yunmeng; Cheng, Wenlong.
In: Advanced Functional Materials, Vol. 27, 1700845, 2017.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Percolating network of ultrathin gold nanowires and silver nanowires toward “invisible” wearable sensors for detecting emotional expression and apexcardiogram
AU - Ho, My Duyen
AU - Ling, Yunzhi
AU - Yap, Lim Wei
AU - Wang, Yan
AU - Dong, Dashen
AU - Zhao, Yunmeng
AU - Cheng, Wenlong
PY - 2017
Y1 - 2017
N2 - 2 nm thin gold nanowires (AuNWs) have extremely high aspect ratio (≈10 000) and are nanoscale soft building blocks; this is different from conventional silver nanowires (AgNWs), which are more rigid. Here, highly sensitive, stretchable, patchable, and transparent strain sensors are fabricated based on the hybrid films of soft/hard networks. They are mechanically stretchable, optically transparent, and electrically conductive and are fabricatedusing a simple and cost-effective solution process. The combination of soft and more rigid nanowires enables their use as high-performance strain sensors with the maximum gauge factor (GF) of ≈236 at low strain (<5%), the highest stretchability of up to 70% strain, and the optical transparency is from 58.7% to 66.7% depending on the amount of the AuNW component. The sensors can detect strain as low as 0.05% and are energy efficient to operate at a voltage as low as 0.1 V. These attributes are difficult to achieve with a single component of either AuNWs or AgNWs. The outstanding sensing performance indicates their potential applications as “invisible” wearable sensors for biometric information collection, as demonstrated in applications for detecting facial expressions, respiration, and apexcardiogram.
AB - 2 nm thin gold nanowires (AuNWs) have extremely high aspect ratio (≈10 000) and are nanoscale soft building blocks; this is different from conventional silver nanowires (AgNWs), which are more rigid. Here, highly sensitive, stretchable, patchable, and transparent strain sensors are fabricated based on the hybrid films of soft/hard networks. They are mechanically stretchable, optically transparent, and electrically conductive and are fabricatedusing a simple and cost-effective solution process. The combination of soft and more rigid nanowires enables their use as high-performance strain sensors with the maximum gauge factor (GF) of ≈236 at low strain (<5%), the highest stretchability of up to 70% strain, and the optical transparency is from 58.7% to 66.7% depending on the amount of the AuNW component. The sensors can detect strain as low as 0.05% and are energy efficient to operate at a voltage as low as 0.1 V. These attributes are difficult to achieve with a single component of either AuNWs or AgNWs. The outstanding sensing performance indicates their potential applications as “invisible” wearable sensors for biometric information collection, as demonstrated in applications for detecting facial expressions, respiration, and apexcardiogram.
KW - Apexcardiogram
KW - Gold nanowires
KW - Silver nanowires
KW - Stretchable sensors
KW - Strain sensors
UR - http://www.scopus.com/inward/record.url?scp=85018735456&partnerID=8YFLogxK
U2 - 10.1002/adfm.201700845
DO - 10.1002/adfm.201700845
M3 - Article
VL - 27
JO - Advanced Functional Materials
JF - Advanced Functional Materials
SN - 1616-301X
M1 - 1700845
ER -