Abstract
Liquid metal printing is emerging as an important tool for making wearable electronics. However, very limited academic efforts were made to fulfill such an increasing need. This paper is dedicated to present relatively complete theoretical and experimental characterizations for liquid metal spraying printing towards developing wearable electronic textile. The practical conditions of liquid metal droplets in the spraying printing process such as the jet velocity, the size distribution of droplets and their evenness degree, the morphology of droplets and their unrolling areas after impacting the substrate are quantified. The dominating factors, including the oxidation of liquid metal and the pressure force on cloth substrate during the impacting process, which ensure liquid metal firmly adhere to the cloth, are clarified. Further, various clothes are comparatively investigated to test their capabilities in printing liquid metal conductors, where the resistance difference can be over thousand-fold. In addition to interpreting the basic mechanisms and performances of the spraying printing, two programmable flexible circuits with specifically designed functions such as blinking LED lighting and wireless infrared temperature measurement via current manufacture technology were also demonstrated and evaluated for their washable ability. With the realization of wearable modules via liquid metal printing technology, it can be expected that flexible functional devices on cloth fabricated quickly and directly would witness more broad applications in the coming time.
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Axisa F, Schmitt P M, Gehin C, et al. Flexible technologies and smart clothing for citizen medicine, home healthcare, and disease prevention. IEEE Trans Inform Tech Biomed, 2005, 9: 325–336
Patel S, Park H, Bonato P, et al. A review of wearable sensors and systems with application in rehabilitation. J Neuroeng Rehabil, 2012, 9: 21
Cherenack K, van Pieterson L. Smart textiles: Challenges and opportunities. J Appl Phys, 2012, 112: 091301
Cottet D, Grzyb J, Kirstein T, et al. Electrical characterization of textile transmission lines. IEEE Trans Adv Packag, 2003, 26: 182–190
Huang C T, Shen C L, Tang C F, et al. A wearable yarn-based piezoresistive sensor. Sens Actuators A-Phys, 2008, 141: 396–403
Roh J S, Chi Y S, Lee J H, et al. Embroidered wearable multiresonant folded dipole antenna for FM reception. Antennas Wirel Propag Lett, 2010, 9: 803–806
Ouyang Y H, Chappell W J. High frequency properties of electro-textiles for wearable antenna applications. IEEE Trans Antennas Propag, 2008, 56: 381–389
Berzowska J, Mainstone D, Bromley M, et al. Kinetic electronic garments. In: Proceedings of the 9th IEEE International Symposium on Wearable Computers. IEEE, 2005. 82–85
Gimpel S, Mohring U, Muller H, et al. Textile-based electronic substrate technology. J Ind Text, 2004, 33: 179–189
Vervust T, Buyle G, Bossuyt F, et al. Integration of stretchable and washable electronic modules for smart textile applications. J Tex Inst, 2012, 103: 1127–1138
Sirringhaus H, Kawase T, Friend R H, et al. High-resolution inkjet printing of all-polymer transistor circuits. Science, 2000, 290: 2123–2126
Petukhov D I, Kirikova M N, Bessonov A A, et al. Nickel and copper conductive patterns fabricated by reactive inkjet printing combined with electroless plating. Mater Lett, 2014, 132: 302–306
Bjorninen T, Virkki J, Sydanheimo L, et al. Manufacturing of antennas for passive UHF RFID tags by direct write dispensing of copper and silver inks on textiles. In: Proceedings of International Conference on Electromagnetics in Advanced Applications. Torino: IEEE, 2015. 589–592
Matsuhisa N, Kaltenbrunner M, Yokota T, et al. Printable elastic conductors with a high conductivity for electronic textile applications. Nat Commun, 2015, 6: 7461
Hu L, Pasta M, Mantia F L, et al. Stretchable, porous, and conductive energy textiles. Nano Lett, 2010, 10: 708–714
Shin S R, Farzad R, Tamayol A, et al. A bioactive carbon nanotubebased ink for printing 2D and 3D flexible electronics. Adv Mater, 2016, 28: 3280–3289
Wang Q, Yu Y, Yang J, et al. Fast fabrication of flexible functional circuits based on liquid metal dual-trans printing. Adv Mater, 2015, 27: 7109–7116
Liu Y, Gao M, Mei S, et al. Ultra-compliant liquid metal electrodes with in-plane self-healing capability for dielectric elastomer actuators. Appl Phys Lett, 2013, 103: 064101
Gao Y, Li H, Liu J. Directly writing resistor, inductor and capacitor to composite functional circuits: A super-simple way for alternative electronics. PLoS ONE, 2013, 8: e69761
Lazarus N, Meyer C D, Bedair S S, et al. Multilayer liquid metal stretchable inductors. Smart Mater Struct, 2014, 23: 085036
Cheng S, Rydberg A, Hjort K, et al. Liquid metal stretchable unbalanced loop antenna. Appl Phys Lett, 2009, 94: 144103
Cheng S, Wu Z. A microfluidic, reversibly stretchable, large-area wireless strain sensor. Adv Funct Mater, 2011, 21: 2282–2290
Fassler A, Majidi C. Soft-matter capacitors and inductors for hyperelastic strain sensing and stretchable electronics. Smart Mater Struct, 2013, 22: 055023
Park Y L, Majidi C, Kramer R, et al. Hyperelastic pressure sensing with a liquid-embedded elastomer. J Micromech Microeng, 2010, 20: 125029
Zheng Y, Zhang Q, Liu J. Pervasive liquid metal based direct writing electronics with roller-ball pen. AIP Adv, 2013, 3: 112117
Zheng Y, He Z Z, Yang J, et al. Personal electronics printing via tapping mode composite liquid metal ink delivery and adhesion mechanism. Sci Rep, 2014, 4: 4588
Gao Y, Li H, Liu J. Direct writing of flexible electronics through room temperature liquid metal ink. PLoS ONE, 2012, 7: e45485
Boley J W, White E L, Chiu G T C, et al. Direct writing of galliumindium alloy for stretchable electronics. Adv Funct Mater, 2014, 24: 3501–3507
Zhang Q, Gao Y, Liu J. Atomized spraying of liquid metal droplets on desired substrate surfaces as a generalized way for ubiquitous printed electronics. Appl Phys A, 2014, 116: 1091–1097
Wang L, Liu J. Ink spraying based liquid metal printed electronics for directly making smart home appliances. ECS J Solid State Sci Tech, 2015, 4: P3057–P3062
Guo C, Yu Y, Liu J. Rapidly patterning conductive components on skin substrates as physiological testing devices via liquid metal spraying and pre-designed mask. J Mater Chem B, 2014, 2: 5739–5745
Wang L, Liu J. Liquid phase 3D printing for quickly manufacturing conductive metal objects with low melting point alloy ink. Sci China Tech Sci, 2014, 57: 1721–1728
Arumugam S, Li Y, Senthilarasu S, et al. Fully spray-coated organic solar cells on woven polyester cotton fabrics for wearable energy harvesting applications. J Mater Chem A, 2016, 4: 5561–5568
Kim D, Moon J. Highly conductive ink jet printed films of nanosilver particles for printable electronics. Electrochem Solid-State Lett, 2005, 8: J30
Zhang Z, Zhang X, Xin Z, et al. Synthesis of monodisperse silver nanoparticles for ink-jet printed flexible electronics. Nanotechnology, 2011, 22: 425601
Stempien Z, Rybicki E, Rybicki T, et al. Inkjet-printing deposition of silver electro-conductive layers on textile substrates at low sintering temperature by using an aqueous silver ions-containing ink for textronic applications. Sen Actuators B-Chem, 2016, 224: 714–725
Regan M J, Tostmann H, Pershan P S, et al. X-ray study of the oxidation of liquid-gallium surfaces. Phys Rev B, 1997, 55: 10786–10790
Xu Q, Oudalov N, Guo Q, et al. Effect of oxidation on the mechanical properties of liquid gallium and eutectic gallium-indium. Phys Fluids, 2012, 24: 063101–063101
Schrader M E. Young-dupre revisited. Langmuir, 1995, 11: 3585–3589
Liu Z, Chen Y, Bash C, et al. Renewable and cooling aware workload management for sustainable data centers. Sigmetrics Perform Eval Rev, 2012, 40: 175–186
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Gui, H., Tan, S., Wang, Q. et al. Spraying printing of liquid metal electronics on various clothes to compose wearable functional device. Sci. China Technol. Sci. 60, 306–316 (2017). https://doi.org/10.1007/s11431-016-0657-5
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DOI: https://doi.org/10.1007/s11431-016-0657-5