Browse > Article
http://dx.doi.org/10.5369/JSST.2018.27.3.186

Development of Multi-layer Pressure Sensor using PEDOT Vapor Phase Polymerization  

Lim, Seung Ju (Smart Textile R&D Group, Korea Institute of Industrial Technology)
Bae, Jong Hyuk (Smart Textile R&D Group, Korea Institute of Industrial Technology)
Jang, Seong Jin (Smart Textile R&D Group, Korea Institute of Industrial Technology)
Lim, Jee Young (Smart Textile R&D Group, Korea Institute of Industrial Technology)
Park, Keun Hae (Smart Textile R&D Group, Korea Institute of Industrial Technology)
Ko, Jae Hoon (Smart Textile R&D Group, Korea Institute of Industrial Technology)
Publication Information
Journal of Sensor Science and Technology / v.27, no.3, 2018 , pp. 186-191 More about this Journal
Abstract
Smart textile industries have been precipitously developed and extended to electronic textiles and wearable devices in recent years. In particular, owing to an increasingly aging society, the elderly healthcare field has been highlighted in the smart device industries, and pressure sensors can be utilized in various elderly healthcare products such as flooring, mattress, and vital-sign measuring devices. Furthermore, elderly healthcare products need to be more lightweight and flexible. To fulfill those needs, textile-based pressure sensors is considered to be an attractive solution. In this research, to apply a textile to the second layer using a pressure sensing device, a novel type of conductive textile was fabricated using vapor phase polymerization of poly(3,4-ethylenedioxythiophene) (PEDOT). Vapor phase polymerization is suitable for preparing the conductive textile because the reaction can be controlled simply under various conditions and does not need high-temperature processing. The morphology of the obtained PEDOT-conductive textile was observed through the Field Emission Scanning Electron Microscope (FESEM). Moreover, the resistance was measured using an ohmmeter and was confirmed to be adjustable to various resistance ranges depending on the concentration of the oxidant solution and polymerization conditions. A 3-layer 81-point multi-pressure sensor was fabricated using the PEDOT-conductive textile prepared herein. A 3D-viewer program was developed to evaluate the sensitivity and multi-pressure recognition of the textile-based multi-pressure sensor. Finally, we confirmed the possibility that PEDOT-conductive textiles could be utilized by pressure sensors.
Keywords
Vapor phase polymerization; PEDOT; Multi-layer; Textile based pressure sensor;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 S. D. Min and B. K. Jung, "A study on biometrics using fiber sensors", Korea Multimed. Soc., Vol. 17(3,4), pp. 25-32, 2013.
2 L. Dunne, "Smart Clothing in Practice: Key Design Barriers to Commercialization", Fash. Pract., Vol. 2(1), pp. 41-66, 2010.   DOI
3 K. N. Cho and H. M. Jung, "Electrical and Physical Properties of Sheath-core Type Conductive Textile Sensor with Home-Textile", Fash. Text. Res., Vol. 16(1), pp. 145-152, 2014.   DOI
4 F. Axisa, C. Gehin, G. Delhomme, C. Collet, O. Robin, A. Dittmar, "Wrist ambulatory monitoring system and smart glove for real time emotional, sensorial and physiological analysis", sensorial and physiological analysis, Proc. 26th Annu. Int. Conf. IEEE EMBS, pp. 2161-2164, San Francisco, USA, 2004.
5 J. D. Kim, S. D. Park, S. J. Lim, S. K. Lee, Y. H. Jang, "The Analysis of Health Trend using HRV and Fuzzy Algorithm on U-Healthcare System based on Life-Log", Korean Inst. Inf. Technol., Vol. 11(7), pp. 91-103, 2013.
6 J. D. Kim, S. D. Park, J. H. Lee, J. J. Ahn, G. S. Chung, "The Health-Care Garment System using Digital Yarn and Pulse and Respiratory Senor using PVDF Film", Korean Inst. Inf. Technol., Vol. 8(3), pp. 87-95, 2010.
7 M. Sousa, A. Techmer, A. Steinhage, C. Lauterbach, P. Lukowicz, "Human tracking and identification using a sensitive floor and wearable accelerometers", 2013 IEEE Int. Conf. on Pervasive Comput. Commun., pp.18-22, San Diego, USA, 2013.
8 A. Eftekhari, "Aluminum as a suitable substrate for the deposition of conducting polymers: application to polyaniline and enzyme-modified electrode", Syn. Met., Vol. 125(3), pp. 295-300, 2002.   DOI
9 K. L. Choy, "Chemical vapor deposition of coatings", Prog. Mater. Sci., Vol. 48(2), pp. 57-170, 2003.   DOI
10 B. Winther-Jensen and K. West, "Vapor-Phase Polymer-ization of 3,4-Ethylenedioxythiophene: A Route to Highly Conducting Polymer Surface Layers", Macromolecules, Vol. 37(12), pp. 4538-4543, 2004.   DOI
11 J. Kim, "The Analysis of Health Trend using HRV and Fuzzy Algorithm on U-Healthcare System based on Life-Log", Syn. Met., Vol. 139(2), pp. 485-489, 2003.   DOI
12 M. Fabretto, K. Zuber, C. Hall, and P. Murphy, "High Conductivity PEDOT Using Humidity Facilitated Vacuum Vapour Phase Polymerisation", Macromol. Rapid Commun., Vol. 29(16), pp. 1403-1409, 2008.   DOI
13 J. Kim, D. Sohn, Y. Sung, and E-R. Kim, "Fabrication and characterization of conductive polypyrrole thin film prepared by in situ vapor-phase polymerization", Syn. Met., Vol. 132(3), pp. 309-313, 2003.   DOI
14 K. H. Hong, K. W. Oh, and T. J. Kang, "Preparation and Properties of Electrically Conducting Textiles by In Situ Polymerization of Poly(3,4-ethylenedioxythiophene)", J. Appl. Polym. Sci., Vol. 97(x3, pp. 1326-1332, 2005.   DOI
15 A. Laforgue, and L. Robitaille, "Production of Conductive PEDOT Nanofibers by the Combination of Electrospinning and Vapor-Phase Polymerization", Macromolecules, Vol. 43(9), pp. 4194-4200, 2010.   DOI
16 M. Fabretto, K. Zuber, C. Hall, P. Murphy, H. J. Griesser, "The role of water in the synthesis and performance of vapour phase polymerised PEDOT electrochromic devices", J. Mater. Chem., Vol. 19(42), pp. 7871-7878, 2009.   DOI
17 T. Bashir, L. Fast, M, Skrifvars, N. K. Persson, "Electrical Resistance Measurement Methods and Electrical Characterization of Poly(3,4-ethylenedioxythiophene)-Coated Conductive Fibers", J. Appl. Polym. Sci., Vol. 124(4), pp. 2954-2961, 2012.   DOI