PEDOT 기상중합 원단을 이용한 멀티 레이어 압력 센서 개발
Development of Multi-layer Pressure Sensor using PEDOT Vapor Phase Polymerization
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
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, andpressure 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 noveltype 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.
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, andpressure 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 noveltype 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.
참고문헌 (17)
- S. D. Min, "A study on biometrics using fiber sensors", Korea Multimed. Soc., 17(3;4), pp.25~32 (2013)
- L. Dunne, "Smart Clothing in Practice: Key Design Barriers to Commercialization", Fash. Pract., 2(1), pp.41~66 (2010)[DOI]
- 조광년, "Sheath-core 구조 전도사 섬유센서의 Home-Textile 적용을 위한 전기·물리학적 특성연구", 한국의류산업학회지, 16(1), pp.145~152 (2014), 한국의류산업학회
- F. Axisa, "Wrist ambulatory monitoring system and smart glove for real time emotional, sensorial and physiological analysis", Proc. 26th Annu. Int. Conf. IEEE EMBS, pp.2161~2164 (2004)
- 김정도, "라이프로그 기반의 유헬스케어 시스템에서 HRV와 퍼지 알고리즘을 이용한 건강 경향성 분석", 한국정보기술학회논문지, 11(7), pp.91~103 (2013), 한국정보기술학회
- 김정도, "PVDF를 이용한 맥박 및 호흡 센서와 디지털 실을 이용한 헬스케어 의류 시스템", 한국정보기술학회논문지, 8(3), pp.87~95 (2010), 한국정보기술학회
- M. Sousa, "Human tracking and identification using a sensitive floor and wearable accelerometers", 2013 IEEE Int. Conf. on Pervasive Comput. Commun., pp.18~22 (2013)
- A. Eftekhari, "Aluminum as a suitable substrate for the deposition of conducting polymers: application to polyaniline and enzyme-modified electrode", Syn. Met., 125(3), pp.295~300 (2002)
- K. L. Choy, "Chemical vapor deposition of coatings", Prog. Mater. Sci., 48(2), pp.57~170 (2003)[DOI]
- B. Winther-Jensen, "Vapor-Phase Polymer-ization of 3,4-Ethylenedioxythiophene: A Route to Highly Conducting Polymer Surface Layers", Macromolecules, 37(12), pp.4538~4543 (2004)[DOI]
- M. Fabretto, "High Conductivity PEDOT Using Humidity Facilitated Vacuum Vapour Phase Polymerisation", Macromol. Rapid Commun., 29(16), pp.1403~1409 (2008)[DOI]
- J. Kim, "Fabrication and characterization of conductive polypyrrole thin film prepared by in situ vapor-phase polymerization", Syn. Met., 132(3), pp.309~313 (2003)[DOI]
- K. H. Hong, "Preparation and Properties of Electrically Conducting Textiles by In Situ Polymerization of Poly(3,4-ethylenedioxythiophene)", J. Appl. Polym. Sci., 97(3), pp.1326~1332 (2005)[DOI]
- J. Kim, "The Analysis of Health Trend using HRV and Fuzzy Algorithm on U-Healthcare System based on Life-Log", Syn. Met., 139(2), pp.485~489 (2003)[DOI]
- A. Laforgue, "Production of Conductive PEDOT Nanofibers by the Combination of Electrospinning and Vapor-Phase Polymerization", Macromolecules, 43(9), pp.4194~4200 (2010)[DOI]
- M. Fabretto, "The role of water in the synthesis and performance of vapour phase polymerised PEDOT electrochromic devices", J. Mater. Chem., 19(42), pp.7871~7878 (2009)[DOI]
- T. Bashir, "Electrical Resistance Measurement Methods and Electrical Characterization of Poly(3,4-ethylenedioxythiophene)-Coated Conductive Fibers", J. Appl. Polym. Sci., 124(4), pp.2954~2961 (2012)[DOI]