Abstract
Electronic skins (e-skins) have the potential to be conformally integrated with human body to revolutionize wearable electronics for a myriad of technical applications including healthcare, soft robotics, and the internet of things, to name a few. One of the challenges preventing the current proof of concept translating to real-world applications is the device durability, in which the strong adhesion between active materials and elastomeric substrate or human skin is required. Here, a new strategy is reported to embed vertically aligned standing gold nanowires (v-AuNWs) into polydimethylsiloxane, leading to a robust e-skin sensor. It is found that v-AuNWs with pinholes can have an adhesion energy 18-fold greater than that for pinhole-free v-AuNWs. Finite element modeling results show that this is due to friction force from interfacial embedment. Furthermore, it is demonstrated that the robust e-skin sensor can be used for braille recognition.
| Original language | English |
|---|---|
| Article number | 1804853 |
| Journal | Small |
| Volume | 15 |
| Issue number | 13 |
| DOIs | |
| State | Published - 27 Mar 2019 |
| Externally published | Yes |
Keywords
- braille decoder
- electronic skins
- gold nanowires
- high-adhesion
- stretchable electrode
