Special Issue on Flexible and Wearable Electronics: from Materials to Applications
Sujie Chen, Siying Li, Sai Peng, Yukun Huang, Jiaqing Zhao, Wei Tang and Xiaojun Guo
Corresponding author: Xiaojun Guo, Email: x.guo@sjtu.edu.cn
Abstract: Soft conductive films composed of a silver nanowire (AgNW) network, a neutral-pH PEDOT:PSS over-coating layer and a polydimethylsiloxane (PDMS) elastomer substrate are fabricated by large area compatible coating processes. The neutral-pH PEDOT:PSS layer is shown to be able to significantly improve the conductivity, stretchability and air stability of the conductive films. The soft conductive films are patterned using a simple maskless patterning approach to fabricate an 8 × 8 flexible pressure sensor array. It is shown that such soft conductive films can help to improve the sensitivity and reduce the signal crosstalk over the pressure sensor array.
Key words: pressure sensor, wearable electronics, silver nanowire, PDMS, blade-coating, bar-coating
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Lee J, Kwon H, Seo J, et al. Conductive fiber-based ultrasensitive textile pressure sensor for wearable electronics. Adv Mater, 2015, 27: 2433 doi: 10.1002/adma.201500009
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Li Y, Samad Y A, Liao K. From cotton to wearable pressure sensor. J Mater Chem A, 2015, 3: 2181 doi: 10.1039/C4TA05810K
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Chen S, Zhuo B, Guo X. Large area one-step facile processing of picrostructured elastomeric dielectric film for high sensitivity and durable sensing over wide pressure range. ACS Appl Mater Interfaces, 2016, 8: 20364 doi: 10.1021/acsami.6b05177
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Joo Y, Byun J, Seong N, et al. Silver nanowire-embedded PDMS with a multiscale structure for a highly sensitive and robust flexible pressure sensor. Nanoscale, 2015, 7: 6208 doi: 10.1039/C5NR00313J
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Chen S, Guo X. Improving the sensitivity of elastic capacitive pressure sensors using silver nanowire mesh electrodes. IEEE Nanotechnol, 2015, 14: 619 doi: 10.1109/TNANO.2015.2422993
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Yao S, Zhu Y. Wearable multifunctional sensors using printed stretchable conductors made of silver nanowires. Nanoscale, 2015, 6: 2345
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Kwon D, Lee T I, Shim J, et al. Highly sensitive, flexible, and wearable pressure sensor based on a giant piezocapacitive effect of three-dimensional microporous elastomeric dielectric layer. ACS Appl Mater Interfaces, 2016, 8: 16922 doi: 10.1021/acsami.6b04225
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Li T, Luo H, Qin L, et al. Flexible capacitie tactile sensor based on micropatterned dielectric layer. Small, 2016, 12: 5042 doi: 10.1002/smll.v12.36
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Pang C, Koo J H, Nguyen A, et al. Highly skin-conformal microhairy sensor for pulse signal amplification. Adv Mater, 2015, 27: 634 doi: 10.1002/adma.201403807
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Boutry C M, Nguyen A, Lawal Q O, et al. A sensitive and biodegradable pressure sensor array for cardiovascular monitoring. Adv Mater, 2015, 27: 6954 doi: 10.1002/adma.201502535
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Tee B C K, Chortos A, Dunn R R, et al. Tunable flexible pressure sensors using microstructured elastomer geometries for intuitive electronics. Adv Funct Mater, 2014, 24: 5427 doi: 10.1002/adfm.201400712
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Mannsfeld S C B, Tee B C K, Stoltenberg R M, et al. Highly sensitive flexible pressure sensors with microstructured rubber dielectric layers. Nat Mater, 2010, 9: 859 doi: 10.1038/nmat2834
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Kang S, Lee J, Lee S, et al. Highly sensitive pressure sensor based on bioinspired porous structure for real-time tactile sensing. Adv Electron Mater, 2016, 12: 1600356
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Lee B Y, Kim J, Kim H, et al. Low-cost flexible pressure sensor based on dielectric elastomer film with micro-pores. Sens Actuators A, 2016, 240: 103 doi: 10.1016/j.sna.2016.01.037
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Madaria A R, Kumar A, Ishikawa F N, et al. Uniform, highly conductive, and patterned transparent films of a percolating silver nanowire network on rigid and flexible substrates using a dry transfer technique. Nano Res, 2010, 3: 564 doi: 10.1007/s12274-010-0017-5
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| [19] |
Vosgueritchian M, Lipomi D J, Bao Z. Highly conductive and transparent PEDOT:PSS films with a fluorosurfactant for stretchable and flexible transparent electrodes. Adv Funct Mater, 2012, 22: 421 doi: 10.1002/adfm.201101775
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Mirri F, Ma A W K, Hsu T T, et al. High-performance carbon nanotube transparent conductive films by scalable dip coating. ACS Nano, 2012, 6: 9737 doi: 10.1021/nn303201g
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Wang Y, Tong S W, Xu X F, et al. Interface engineering of layer-by-layer stacked graphene anodes for high-performance organic solar cells. Adv Mater, 2011, 23: 1514 doi: 10.1002/adma.201003673
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Yu J S, Kim I, Kim J S, et al. Silver front electrode grids for ITO-free all printed polymer solar cells with embedded and raised topographies, prepared by thermal imprint, f1 exographic and inkjet roll-to-roll processes. Nanoscale, 2012, 4: 6032 doi: 10.1039/c2nr31508d
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Hu L, Kim H S, Lee J Y, et al. Scalable coating and properties of transparent, flexible, silver nanowire electrodes. ACS Nano, 2010, 4: 2955 doi: 10.1021/nn1005232
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| [24] |
Choi D Y, Kang H W, Sung H J, et al. Annealing-free, flexible silver nanowire-polymer composite electrodes via a continuous two-step spray-coating method. Nanoscale, 2013, 5: 977 doi: 10.1039/C2NR32221H
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Chen S, Song L, Tao Z, et al. Neutral-pH PEDOT:PSS as the over-coating layer for stable silver nanowire flexible transparent conductive films. Org Electron, 2014, 15: 3654 doi: 10.1016/j.orgel.2014.09.047
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| [26] |
Zhuo B, Chen S, Zhao M, et al. High sensitivity flexible capacitive pressure sensor using polydimethylsiloxane elastomer dielectric layer micro-structured by three-dimensional printed mold. IEEE J Electron Devices, 2017, 5: 219 doi: 10.1109/JEDS.2017.2683558
|
| [27] |
Chen S, Cui Q, Guo X. Annealing-free solution processed silver nanowire-polymer composite transparent electrodes and flexible device applications. IEEE Nanotechnol, 2014, 14: 36
|
| [1] |
Lai Y C, Ye B W, Lu C F, et al. Extraordinarily sensitive and low-voltage operational cloth-based electronic skin for wearable sensing and multifunctional integration uses: a tactile-induced insulating-to-conducting transition. Adv Funct Mater, 2016, 26: 1286 doi: 10.1002/adfm.v26.8
|
| [2] |
Lee J, Kwon H, Seo J, et al. Conductive fiber-based ultrasensitive textile pressure sensor for wearable electronics. Adv Mater, 2015, 27: 2433 doi: 10.1002/adma.201500009
|
| [3] |
Li Y, Samad Y A, Liao K. From cotton to wearable pressure sensor. J Mater Chem A, 2015, 3: 2181 doi: 10.1039/C4TA05810K
|
| [4] |
Chen S, Zhuo B, Guo X. Large area one-step facile processing of picrostructured elastomeric dielectric film for high sensitivity and durable sensing over wide pressure range. ACS Appl Mater Interfaces, 2016, 8: 20364 doi: 10.1021/acsami.6b05177
|
| [5] |
Pang C, Lee G Y, Kim T I, et al. A flexible and highly sensitive strain-gauge sensor using reversible interlocking of nanofibres. Nat Mater, 2012, 11: 795 doi: 10.1038/nmat3380
|
| [6] |
Joo Y, Byun J, Seong N, et al. Silver nanowire-embedded PDMS with a multiscale structure for a highly sensitive and robust flexible pressure sensor. Nanoscale, 2015, 7: 6208 doi: 10.1039/C5NR00313J
|
| [7] |
Chen S, Guo X. Improving the sensitivity of elastic capacitive pressure sensors using silver nanowire mesh electrodes. IEEE Nanotechnol, 2015, 14: 619 doi: 10.1109/TNANO.2015.2422993
|
| [8] |
Yao S, Zhu Y. Wearable multifunctional sensors using printed stretchable conductors made of silver nanowires. Nanoscale, 2015, 6: 2345
|
| [9] |
Kwon D, Lee T I, Shim J, et al. Highly sensitive, flexible, and wearable pressure sensor based on a giant piezocapacitive effect of three-dimensional microporous elastomeric dielectric layer. ACS Appl Mater Interfaces, 2016, 8: 16922 doi: 10.1021/acsami.6b04225
|
| [10] |
Li T, Luo H, Qin L, et al. Flexible capacitie tactile sensor based on micropatterned dielectric layer. Small, 2016, 12: 5042 doi: 10.1002/smll.v12.36
|
| [11] |
Pang C, Koo J H, Nguyen A, et al. Highly skin-conformal microhairy sensor for pulse signal amplification. Adv Mater, 2015, 27: 634 doi: 10.1002/adma.201403807
|
| [12] |
Boutry C M, Nguyen A, Lawal Q O, et al. A sensitive and biodegradable pressure sensor array for cardiovascular monitoring. Adv Mater, 2015, 27: 6954 doi: 10.1002/adma.201502535
|
| [13] |
Tee B C K, Chortos A, Dunn R R, et al. Tunable flexible pressure sensors using microstructured elastomer geometries for intuitive electronics. Adv Funct Mater, 2014, 24: 5427 doi: 10.1002/adfm.201400712
|
| [14] |
Madsen F B, Daugaard A E, Hvilsted S, et al. The current state of silicone-based dielectric elastomer transducers. Macromol Rapid Comm, 2016, 37: 378 doi: 10.1002/marc.v37.5
|
| [15] |
Mannsfeld S C B, Tee B C K, Stoltenberg R M, et al. Highly sensitive flexible pressure sensors with microstructured rubber dielectric layers. Nat Mater, 2010, 9: 859 doi: 10.1038/nmat2834
|
| [16] |
Kang S, Lee J, Lee S, et al. Highly sensitive pressure sensor based on bioinspired porous structure for real-time tactile sensing. Adv Electron Mater, 2016, 12: 1600356
|
| [17] |
Lee B Y, Kim J, Kim H, et al. Low-cost flexible pressure sensor based on dielectric elastomer film with micro-pores. Sens Actuators A, 2016, 240: 103 doi: 10.1016/j.sna.2016.01.037
|
| [18] |
Madaria A R, Kumar A, Ishikawa F N, et al. Uniform, highly conductive, and patterned transparent films of a percolating silver nanowire network on rigid and flexible substrates using a dry transfer technique. Nano Res, 2010, 3: 564 doi: 10.1007/s12274-010-0017-5
|
| [19] |
Vosgueritchian M, Lipomi D J, Bao Z. Highly conductive and transparent PEDOT:PSS films with a fluorosurfactant for stretchable and flexible transparent electrodes. Adv Funct Mater, 2012, 22: 421 doi: 10.1002/adfm.201101775
|
| [20] |
Mirri F, Ma A W K, Hsu T T, et al. High-performance carbon nanotube transparent conductive films by scalable dip coating. ACS Nano, 2012, 6: 9737 doi: 10.1021/nn303201g
|
| [21] |
Wang Y, Tong S W, Xu X F, et al. Interface engineering of layer-by-layer stacked graphene anodes for high-performance organic solar cells. Adv Mater, 2011, 23: 1514 doi: 10.1002/adma.201003673
|
| [22] |
Yu J S, Kim I, Kim J S, et al. Silver front electrode grids for ITO-free all printed polymer solar cells with embedded and raised topographies, prepared by thermal imprint, f1 exographic and inkjet roll-to-roll processes. Nanoscale, 2012, 4: 6032 doi: 10.1039/c2nr31508d
|
| [23] |
Hu L, Kim H S, Lee J Y, et al. Scalable coating and properties of transparent, flexible, silver nanowire electrodes. ACS Nano, 2010, 4: 2955 doi: 10.1021/nn1005232
|
| [24] |
Choi D Y, Kang H W, Sung H J, et al. Annealing-free, flexible silver nanowire-polymer composite electrodes via a continuous two-step spray-coating method. Nanoscale, 2013, 5: 977 doi: 10.1039/C2NR32221H
|
| [25] |
Chen S, Song L, Tao Z, et al. Neutral-pH PEDOT:PSS as the over-coating layer for stable silver nanowire flexible transparent conductive films. Org Electron, 2014, 15: 3654 doi: 10.1016/j.orgel.2014.09.047
|
| [26] |
Zhuo B, Chen S, Zhao M, et al. High sensitivity flexible capacitive pressure sensor using polydimethylsiloxane elastomer dielectric layer micro-structured by three-dimensional printed mold. IEEE J Electron Devices, 2017, 5: 219 doi: 10.1109/JEDS.2017.2683558
|
| [27] |
Chen S, Cui Q, Guo X. Annealing-free solution processed silver nanowire-polymer composite transparent electrodes and flexible device applications. IEEE Nanotechnol, 2014, 14: 36
|
Article views: 7424 Times PDF downloads: 107 Times Cited by: 0 Times
Received: 01 August 2017 Revised: 07 November 2017 Online: Accepted Manuscript: 29 November 2017Published: 01 January 2018
| Citation: |
Sujie Chen, Siying Li, Sai Peng, Yukun Huang, Jiaqing Zhao, Wei Tang, Xiaojun Guo. Silver nanowire/polymer composite soft conductive film fabricated by large-area compatible coating for flexible pressure sensor array[J]. Journal of Semiconductors, 2018, 39(1): 013001. doi: 10.1088/1674-4926/39/1/013001
****
S J Chen, S Y Li, S Peng, Y K Huang, J Q Zhao, W Tang, X J Guo, Silver nanowire/polymer composite soft conductive film fabricated by large-area compatible coating for flexible pressure sensor array[J]. J. Semicond., 2018, 39(1): 013001. doi: 10.1088/1674-4926/39/1/013001.
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Project supported by the Science and Technology Commission of Shanghai Municipality (No. 16JC1400603).
| [1] |
Lai Y C, Ye B W, Lu C F, et al. Extraordinarily sensitive and low-voltage operational cloth-based electronic skin for wearable sensing and multifunctional integration uses: a tactile-induced insulating-to-conducting transition. Adv Funct Mater, 2016, 26: 1286 doi: 10.1002/adfm.v26.8
|
| [2] |
Lee J, Kwon H, Seo J, et al. Conductive fiber-based ultrasensitive textile pressure sensor for wearable electronics. Adv Mater, 2015, 27: 2433 doi: 10.1002/adma.201500009
|
| [3] |
Li Y, Samad Y A, Liao K. From cotton to wearable pressure sensor. J Mater Chem A, 2015, 3: 2181 doi: 10.1039/C4TA05810K
|
| [4] |
Chen S, Zhuo B, Guo X. Large area one-step facile processing of picrostructured elastomeric dielectric film for high sensitivity and durable sensing over wide pressure range. ACS Appl Mater Interfaces, 2016, 8: 20364 doi: 10.1021/acsami.6b05177
|
| [5] |
Pang C, Lee G Y, Kim T I, et al. A flexible and highly sensitive strain-gauge sensor using reversible interlocking of nanofibres. Nat Mater, 2012, 11: 795 doi: 10.1038/nmat3380
|
| [6] |
Joo Y, Byun J, Seong N, et al. Silver nanowire-embedded PDMS with a multiscale structure for a highly sensitive and robust flexible pressure sensor. Nanoscale, 2015, 7: 6208 doi: 10.1039/C5NR00313J
|
| [7] |
Chen S, Guo X. Improving the sensitivity of elastic capacitive pressure sensors using silver nanowire mesh electrodes. IEEE Nanotechnol, 2015, 14: 619 doi: 10.1109/TNANO.2015.2422993
|
| [8] |
Yao S, Zhu Y. Wearable multifunctional sensors using printed stretchable conductors made of silver nanowires. Nanoscale, 2015, 6: 2345
|
| [9] |
Kwon D, Lee T I, Shim J, et al. Highly sensitive, flexible, and wearable pressure sensor based on a giant piezocapacitive effect of three-dimensional microporous elastomeric dielectric layer. ACS Appl Mater Interfaces, 2016, 8: 16922 doi: 10.1021/acsami.6b04225
|
| [10] |
Li T, Luo H, Qin L, et al. Flexible capacitie tactile sensor based on micropatterned dielectric layer. Small, 2016, 12: 5042 doi: 10.1002/smll.v12.36
|
| [11] |
Pang C, Koo J H, Nguyen A, et al. Highly skin-conformal microhairy sensor for pulse signal amplification. Adv Mater, 2015, 27: 634 doi: 10.1002/adma.201403807
|
| [12] |
Boutry C M, Nguyen A, Lawal Q O, et al. A sensitive and biodegradable pressure sensor array for cardiovascular monitoring. Adv Mater, 2015, 27: 6954 doi: 10.1002/adma.201502535
|
| [13] |
Tee B C K, Chortos A, Dunn R R, et al. Tunable flexible pressure sensors using microstructured elastomer geometries for intuitive electronics. Adv Funct Mater, 2014, 24: 5427 doi: 10.1002/adfm.201400712
|
| [14] |
Madsen F B, Daugaard A E, Hvilsted S, et al. The current state of silicone-based dielectric elastomer transducers. Macromol Rapid Comm, 2016, 37: 378 doi: 10.1002/marc.v37.5
|
| [15] |
Mannsfeld S C B, Tee B C K, Stoltenberg R M, et al. Highly sensitive flexible pressure sensors with microstructured rubber dielectric layers. Nat Mater, 2010, 9: 859 doi: 10.1038/nmat2834
|
| [16] |
Kang S, Lee J, Lee S, et al. Highly sensitive pressure sensor based on bioinspired porous structure for real-time tactile sensing. Adv Electron Mater, 2016, 12: 1600356
|
| [17] |
Lee B Y, Kim J, Kim H, et al. Low-cost flexible pressure sensor based on dielectric elastomer film with micro-pores. Sens Actuators A, 2016, 240: 103 doi: 10.1016/j.sna.2016.01.037
|
| [18] |
Madaria A R, Kumar A, Ishikawa F N, et al. Uniform, highly conductive, and patterned transparent films of a percolating silver nanowire network on rigid and flexible substrates using a dry transfer technique. Nano Res, 2010, 3: 564 doi: 10.1007/s12274-010-0017-5
|
| [19] |
Vosgueritchian M, Lipomi D J, Bao Z. Highly conductive and transparent PEDOT:PSS films with a fluorosurfactant for stretchable and flexible transparent electrodes. Adv Funct Mater, 2012, 22: 421 doi: 10.1002/adfm.201101775
|
| [20] |
Mirri F, Ma A W K, Hsu T T, et al. High-performance carbon nanotube transparent conductive films by scalable dip coating. ACS Nano, 2012, 6: 9737 doi: 10.1021/nn303201g
|
| [21] |
Wang Y, Tong S W, Xu X F, et al. Interface engineering of layer-by-layer stacked graphene anodes for high-performance organic solar cells. Adv Mater, 2011, 23: 1514 doi: 10.1002/adma.201003673
|
| [22] |
Yu J S, Kim I, Kim J S, et al. Silver front electrode grids for ITO-free all printed polymer solar cells with embedded and raised topographies, prepared by thermal imprint, f1 exographic and inkjet roll-to-roll processes. Nanoscale, 2012, 4: 6032 doi: 10.1039/c2nr31508d
|
| [23] |
Hu L, Kim H S, Lee J Y, et al. Scalable coating and properties of transparent, flexible, silver nanowire electrodes. ACS Nano, 2010, 4: 2955 doi: 10.1021/nn1005232
|
| [24] |
Choi D Y, Kang H W, Sung H J, et al. Annealing-free, flexible silver nanowire-polymer composite electrodes via a continuous two-step spray-coating method. Nanoscale, 2013, 5: 977 doi: 10.1039/C2NR32221H
|
| [25] |
Chen S, Song L, Tao Z, et al. Neutral-pH PEDOT:PSS as the over-coating layer for stable silver nanowire flexible transparent conductive films. Org Electron, 2014, 15: 3654 doi: 10.1016/j.orgel.2014.09.047
|
| [26] |
Zhuo B, Chen S, Zhao M, et al. High sensitivity flexible capacitive pressure sensor using polydimethylsiloxane elastomer dielectric layer micro-structured by three-dimensional printed mold. IEEE J Electron Devices, 2017, 5: 219 doi: 10.1109/JEDS.2017.2683558
|
| [27] |
Chen S, Cui Q, Guo X. Annealing-free solution processed silver nanowire-polymer composite transparent electrodes and flexible device applications. IEEE Nanotechnol, 2014, 14: 36
|
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