A transparent stretchable sensor for distinguishable detection of touch and pressure by capacitive and piezoresistive signal transduction
Source abstract
Abstract
Abstract Transparent stretchable (TS) sensors capable of detecting and distinguishing touch and pressure inputs are a promising development in wearable electronics. However, realization of such a device has been limited by difficulties in achieving optical transparency, stretchability, high sensitivity, stability, and distinguishable responsivity to two stimuli simultaneously. Herein, we report a TS sensor in which touch and pressure stimuli can be detected and distinguished on a substrate with a stress-relieving three-dimensional (3D) microstructured pattern providing multidirectional stretchability and increased pressure sensitivity. The TS capacitive device structure is a dielectric layer sandwiched between an upper piezoresistive electrode of a poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)/ionic liquid composite, which enables touch and pressure stimuli to be distinguished, and a lower electrode of metal/indium tin oxide/metal multilayer. The TS sensor array was demonstrated as a wearable input device for controlling a small vehicle. The TS touch-pressure sensor has great potential to be used as a multimodal input device for future wearable electronics.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Tactile and Sensory Interactions · Muscle activation and electromyography studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (45)
Show source-provided references
1. Trung, T. Q. et al. An omnidirectionally stretchable photodetector based on organic-inorganic heterojunctions. ACS Appl. Mater. Interfaces 9, 35958–35967 (2017).10.1021/acsami.7b09411 ↗
2. Wang, X. et al. A highly stretchable transparent self-powered triboelectric tactile sensor with metallized nanofibers for wearable electronics. Adv. Mater. 30, 1706738 (2018).10.1002/adma.201706738 ↗
3. Kang, M. et al. Graphene-based three-dimensional capacitive touch sensor for wearable electronics. ACS Nano 11, 7950–7957 (2017).10.1021/acsnano.7b02474 ↗
4. Roh, E., Hwang, B.-U., Kim, D., Kim, B.-Y. & Lee, N.-E. Stretchable, transparent, ultrasensitive, and patchable strain sensor for human-machine interfaces comprising a nanohybrid of carbon nanotubes and conductive elastomers. ACS Nano 9, 6252–6261 (2015).10.1021/acsnano.5b01613 ↗
5. Hwang, B.-U. et al. Transparent stretchable self-powered patchable sensor platform with ultrasensitive recognition of human activities. ACS Nano 9, 8801–8810 (2015).10.1021/acsnano.5b01835 ↗
6. Lee, J. et al. A stretchable strain sensor based on a metal nanoparticle thin film for human motion detection. Nanoscale 6, 11932–11939 (2014).10.1039/C4NR03295K ↗
7. Shi, J. et al. Graphene reinforced carbon nanotube networks for wearable strain sensors. Adv. Funct. Mater. 26, 2078–2084 (2016).10.1002/adfm.201504804 ↗
8. Wang, C. et al. Carbonized silk fabric for ultrastretchable, highly sensitive, and wearable strain sensors. Adv. Mater. 28, 6640–6648 (2016).10.1002/adma.201601572 ↗
9. Park, J. J., Hyun, W. J., Mun, S. C., Park, Y. T. & Park, O. O. Highly stretchable and wearable graphene strain sensors with controllable sensitivity for human motion monitoring. ACS Appl. Mater. Interfaces 7, 6317–6324 (2015).10.1021/acsami.5b00695 ↗
10. Ge, J. et al. A stretchable electronic fabric artificial skin with pressure-, lateral strain-, and flexion-sensitive properties. Adv. Mater. 28, 722–728 (2016).10.1002/adma.201504239 ↗
11. Kim, K. K. et al. Highly sensitive and stretchable multidimensional strain sensor with prestrained anisotropic metal nanowire percolation networks. Nano Lett. 15, 5240–5247 (2015).10.1021/acs.nanolett.5b01505 ↗
12. Choi, D. Y. et al. Highly stretchable, hysteresis-free ionic liquid-based strain sensor for precise human motion monitoring. ACS Appl. Mater. Interfaces 9, 1770–1780 (2017).10.1021/acsami.6b12415 ↗
13. Kim, C.-C., Lee, H.-H., Oh, K. H. & Sun, J.-Y. Highly stretchable, transparent ionic touch panel. Science 12, 682–687 (2016).10.1126/science.aaf8810 ↗
14. Jung, S. et al. Reverse-micelle-induced porous pressure-sensitive rubber for wearable human–machine interfaces. Adv. Mater. 26, 4825–4830 (2014).10.1002/adma.201401364 ↗
15. Kim, N., Lim, T., Song, K., Yang, S. & Lee, J. Stretchable multichannel electromyography sensor array covering large area for controlling home electronics with distinguishable signals from multiple muscles. ACS Appl. Mater. Interfaces 8, 21070–21076 (2016).10.1021/acsami.6b05025 ↗
16. Yao, S. & Zhu, Y. Wearable multifunctional sensors using printed stretchable conductors made of silver nanowires. Nanoscale 6, 2345–2352 (2014).10.1039/c3nr05496a ↗
17. Park, J. et al. Tactile-direction-sensitive and stretchable electronic skins based on human-skin-inspired interlocked microstructures. ACS Nano 8, 12020–12029 (2014).10.1021/nn505953t ↗
18. Trung, T. Q., Ramasundaram, S., Hwang, B.-U. & Lee, N.-E. An all-elastomeric transparent and stretchable temperature sensor for body-attachable wearable electronics. Adv. Mater. 28, 502–509 (2016).10.1002/adma.201504441 ↗
19. Roh, E., Lee, H.-B., Kim, D.-I. & Lee, N.-E. A solution-processable, omnidirectionally stretchable, and high-pressure-sensitive piezoresistive device. Adv. Mater. 29, 1703004 (2017).10.1002/adma.201703004 ↗
20. Park, H. et al. Stretchable array of highly sensitive pressure sensors consisting of polyaniline nanofibers and au-coated polydimethylsiloxane micropillars. ACS Nano 9, 9974–9985 (2015).10.1021/acsnano.5b03510 ↗
21. Amjadi, M., Turan, M., Clementson, C. P. & Sitti, M. Parallel microcracks-based ultrasensitive and highly stretchable strain sensors. ACS Appl. Mater. Interfaces 8, 5618–5626 (2016).10.1021/acsami.5b12588 ↗
22. Park, Y. et al. Microtopography-guided conductive patterns of liquid-driven graphene nanoplatelet networks for stretchable and skin-conformal sensor array. Adv. Mater. 29, 1606453 (2017).10.1002/adma.201606453 ↗
23. You, I. et al. Stretchable e-skin apexcardiogram sensor. Adv. Mater. 28, 6359–6364 (2016).10.1002/adma.201600720 ↗
24. Son, D. et al. Multifunctional wearable devices for diagnosis and therapy of movement disorders. Nat. Nanotechnol. 9, 397–404 (2014).10.1038/nnano.2014.38 ↗
25. Xu, B. et al. An epidermal stimulation and sensing platform for sensorimotor prosthetic control, management of lower back exertion, and electrical muscle activation. Adv. Mater. 28, 4462–4471 (2016).10.1002/adma.201504155 ↗
26. Yamamoto, Y. et al. Printed multifunctional flexible device with an integrated motion sensor for health care monitoring. Sci. Adv. 2, e1601473 (2016).10.1126/sciadv.1601473 ↗
27. Zhao, S. & Zhu, R. Electronic skin with multifunction sensors based on thermosensation. Adv. Mater. 29, 1606151 (2017).10.1002/adma.201606151 ↗
28. Tien, N. T. et al. A flexible bimodal sensor array for simultaneous sensing of pressure and temperature. Adv. Mater. 26, 796–804 (2014).10.1002/adma.201302869 ↗
29. Kim, D.-I. et al. A sensor array using multi-functional field-effect transistors with ultrahigh sensitivity and precision for bio-monitoring. Sci. Rep. 5, 12705 (2015).
30. Park, J., Kim, M., Lee, Y., Lee, H. S. & Ko, H. Fingertip skin-inspired microstructured ferroelectric skins discriminate static/dynamic pressure and temperature stimuli. Sci. Adv. 1, e1500661 (2015).10.1126/sciadv.1500661 ↗
31. Bae, G. Y. et al. Pressure/temperature sensing bimodal electronic skin with stimulus discriminability and linear sensitivity. Adv. Mater. 30, 1803388 (2018).10.1002/adma.201803388 ↗
32. Song, J.-K. et al. Wearable force touch sensor array using a flexible and transparent electrode. Adv. Funct. Mater. 27, 1605286 (2017).10.1002/adfm.201605286 ↗
33. Huang, Y. et al. A flexible touch-pressure sensor array with wireless transmission system for robotic skin. Rev. Sci. Instrum. 87, 065007 (2016).10.1063/1.4954199 ↗
34. Lee, H.-B. et al. Mogul-patterned elastomeric substrate for stretchable electronics. Adv. Mater. 28, 3069–3077 (2016).10.1002/adma.201505218 ↗
35. Wen, L., Sahu, B. B. & Han, J. G. Development and utility of a new 3-D magnetron source for high rate deposition of highly conductive ITO thin films near room temperature. Phys. Chem. Chem. Phys. 20, 4818–4830 (2018).10.1039/C7CP07318F ↗
36. Badre, C., Marquant, L., Alsayed, A. M. & Hough, L. A. Highly conductive poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) films using 1-ethyl-3-methylimidazolium tetracyanoborate ionic liquid. Adv. Funct. Mater. 22, 2723–2727 (2012).10.1002/adfm.201200225 ↗
37. Kee, S. et al. Controlling molecular ordering in aqueous conducting polymers using ionic liquids. Adv. Mater. 28, 8625–8631 (2016).10.1002/adma.201505473 ↗
38. Teo, M. Y. et al. Highly stretchable and highly conductive PEDOT:PSS/ionic liquid composite transparent electrodes for solution-processed stretchable electronics. ACS Appl. Mater. Interfaces 9, 819–826 (2017).10.1021/acsami.6b11988 ↗
39. Xu, F. & Zhu, Y. Highly conductive and stretchable silver nanowire conductors. Adv. Mater. 24, 5117–5122 (2012).10.1002/adma.201201886 ↗
40. Lee, G.-B., Sathi, S. G., Kim, D.-Y., Jeong, K.-U. & Nah, C. Wrinkled elastomers for the highly stretchable electrodes with excellent fatigue resistances. Polym. Test. 53, 329–337 (2016).10.1016/j.polymertesting.2016.06.003 ↗
41. Zang, Y., Zhang, F., Di, C.-a & Zhu, D. Advances of flexible pressure sensors toward artificial intelligence and health care applications. Mater. Horiz. 2, 140–156 (2015).10.1039/C4MH00147H ↗
42. Yang, S., Su, B., Bitar, G. & Lu, N. Stretchability of indium tin oxide (ITO) serpentine thin films supported by Kapton substrates. Int. J. Fract. 190, 99–110 (2014).10.1007/s10704-014-9977-x ↗
43. Gutruf, P. et al. Transparent functional oxide stretchable electronics: micro-tectonics enabled high strain electrodes. NPG Asia Mater. 5, e62 (2013).10.1038/am.2013.41 ↗
44. Lien, S.-Y., Nautiyal, A. & Lee, S. J. Optoelectronic properties of indium–tin oxide films deposited on flexible and transparent poly(dimethylsiloxane) substrate. Jpn. J. Appl. Phys. 52, 115801 (2013).10.7567/JJAP.52.115801 ↗
45. Choi, T. Y. et al. Stretchable, transparent, and stretch-unresponsive capacitive touch sensor array with selectively patterned silver nanowires/reduced graphene oxide electrodes. ACS Appl. Mater. Interfaces 9, 18022–18030 (2017).10.1021/acsami.6b16716 ↗