2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)最新文献_第2页

PEDOT:PSS/PDMS-coated cotton fabric for ECG electrode PEDOT:用于ECG电极的PSS/ pdms涂层棉织物

2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) Pub Date : 2020-08-16 DOI: 10.1109/FLEPS49123.2020.9239526

G. B. Tseghai, B. Malengier, Kinde Anlay Fante, A. B. Nigusse, Bulcha Belay Etana, L. Van Langenhove

引用次数: 11

Nanocrystalline Nickel Manganite Synthesis by Sol-Gel Combustion for Flexible Temperature Sensors 溶胶-凝胶燃烧合成柔性温度传感器用纳米晶镍锰矿

2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) Pub Date : 2020-08-16 DOI: 10.1109/FLEPS49123.2020.9239569

M. V. Nikolić, Z. Vasiljevic, M. Dojcinovic, N. Tadic, M. Radovanović, G. Stojanović

引用次数: 2

Multivariable optimization of inkjet printing process of Ag nanoparticle ink on Kapton 银纳米颗粒油墨Kapton喷墨打印工艺的多变量优化

2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) Pub Date : 2020-08-16 DOI: 10.1109/FLEPS49123.2020.9239474

A. Bucciarelli, A. Adami, Chandrakanth Reddy Chandaiahgari, L. Lorenzelli

引用次数: 7

Carbon Nanotube/PEDOT: PSS Composite-based Flexible Temperature Sensor with Enhanced Response and Recovery Time 具有增强响应和恢复时间的碳纳米管/PEDOT: PSS复合材料柔性温度传感器

2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) Pub Date : 2020-08-16 DOI: 10.1109/FLEPS49123.2020.9239431

Oliver Ozioko, Yogeenth Kumaresan, R. Dahiya

{"title":"Carbon Nanotube/PEDOT: PSS Composite-based Flexible Temperature Sensor with Enhanced Response and Recovery Time","authors":"Oliver Ozioko, Yogeenth Kumaresan, R. Dahiya","doi":"10.1109/FLEPS49123.2020.9239431","DOIUrl":"https://doi.org/10.1109/FLEPS49123.2020.9239431","url":null,"abstract":"Temperature sensors with good mechanical flexibility, high sensitivity, fast response and recovery time are essential features for real time measurements by electronic Skin (eSkin). This paper presents the fabrication and characterization of a flexible temperature sensor using PEDOT: PSS and carbon nanotube (CNT) at 1:1 mixing ratio. In order to establish the performance enhancement capability of this composition, a comparative study was carried out. This was done by fabricating two flexible temperature sensors each on $sim 175 mu mathrm{m} -$ thick PVC substrate using only CNT and then with CNT/PEDOT: PSS polymer composite following simple drop casting technique. Both sensors show good sensitivity $sim 0.27$ (%)$^{circ}mathrm{C}^{-1}$)) for CNT and $sim 0.64$ (%)$^{circ}mathrm{C}^{-1}$)) for CNT/PEDOT: PSS for temperatures varying from $20^{circ}mathrm{C}$ to $80^{circ}mathrm{C}$. Although both the sensors, CNT and CNT/PEDOT: PSS composite revealed fast response and recovery time, the latter shows a higher sensitivity $(sim 0.64$(%)$^{circ}mathrm{C}^{-1}$)). Further, a comparison of the sensor made with CNT/PEDOT: PSS with similar works in literature reveals that the presented sensor exhibits relatively faster response $(sim 4.8mathrm{s})$ and recovery $(sim 2.5mathrm{s})$ time. This response enhancement can provide a biomimetic eSkin with unique feature.","PeriodicalId":101496,"journal":{"name":"2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126776849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Ultra-Flexible and Durable Textile Capacitors with Piezoelectric PVDF Dielectrics for Wearables 可穿戴设备用PVDF压电介质的超柔性和耐用纺织电容器

2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) Pub Date : 2020-08-16 DOI: 10.1109/FLEPS49123.2020.9239561

Akanksha Rohit, Y. Kelestemur, S. Kaya

{"title":"Ultra-Flexible and Durable Textile Capacitors with Piezoelectric PVDF Dielectrics for Wearables","authors":"Akanksha Rohit, Y. Kelestemur, S. Kaya","doi":"10.1109/FLEPS49123.2020.9239561","DOIUrl":"https://doi.org/10.1109/FLEPS49123.2020.9239561","url":null,"abstract":"We present on the design and use of wearable capacitive patches with piezoelectric dielectrics for tracking motion, impact, posture, acoustic feedback and general biomedical health. The capacitive elements are based on ultra-flexible and durable textile electrodes and silicone dielectrics augmented with polyvinylidene fluoride - trifluoroethylene (PVDF-TrFE) fillers up to 30% w/v ratio. The resulting patches, deployed on appropriate locations and geometries, can capture critical information on the type, strength and duration between specific episodes of movements in the limbs as well as impact and acoustic response from the torso. This is possible due to the piezoelectric response ($d _{33} =24 pm 1$ pC/N) induced by the PVDF-TrFE/Silicone composite dielectric layer. Moreover, the periphery of the patch allows for additional compact commercial sensors to be integrated along with a bluetooth-capable micro-controller platform. Consequently, the proposed piezoelectric capacitive patches with integrated arrays of sensors are ideally suited to pursue compact, cost-effective, power-efficient solutions in the emerging era of sensor fusion for complex performance monitoring, realistic worker training and for high-risk patients.","PeriodicalId":101496,"journal":{"name":"2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116740871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Humidity Sensing Properties of Halogenated Graphene: A Comparison of Fluorinated Graphene and Chlorinated Graphene 卤化石墨烯的感湿性能:氟化石墨烯与氯化石墨烯的比较

2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) Pub Date : 2020-08-16 DOI: 10.1109/FLEPS49123.2020.9239564

Sajjad Hajian, P. Khakbaz, B. B. Narakathu, S. Masihi, M. Panahi, D. Maddipatla, V. Palaniappan, R. Blair, B. Bazuin, M. Atashbar

{"title":"Humidity Sensing Properties of Halogenated Graphene: A Comparison of Fluorinated Graphene and Chlorinated Graphene","authors":"Sajjad Hajian, P. Khakbaz, B. B. Narakathu, S. Masihi, M. Panahi, D. Maddipatla, V. Palaniappan, R. Blair, B. Bazuin, M. Atashbar","doi":"10.1109/FLEPS49123.2020.9239564","DOIUrl":"https://doi.org/10.1109/FLEPS49123.2020.9239564","url":null,"abstract":"This work presents a comparison of humidity sensing properties of fluorinated graphene (FG) and chlorinated graphene (ClG), using experimental data and atomic-level ab-initio simulations. The fabrication of the humidity sensor included drop-casting FG and ClG suspensions on silver (Ag)based interdigitated electrodes (IDEs) to form the sensing layer. The sensitivity of FG and ClG to humidity variations was investigated by measurement of relative resistance change ($Delta R/R_{b}$) of the fabricated humidity sensors when the relative humidity (RH) was changed from 20% to 80%, in steps of 10%, at a constant temperature of 24° C. For RH transition from 20% to 80%, the $Delta R/R_{b}$ of the FG-based and the ClG-based humidity sensors were measured as 13.3% and 10.8%, respectively, resulting in a sensitivity of 0.22%/%RH and 0.18%/%RH, respectively. Density functional theory (DFT) calculations showed adsorption energy (Eads) of -0.50 eV and -0.43 eV for the physisorption of water molecules on the FG and ClG, respectively, demonstrating the higher sensitivity of the FG to humidity. The density of states (DOS) calculations showed that the water-adsorbed FG has a larger DOS near the Fermi level when compared to water-adsorbed ClG, which can be attributed to the stronger interaction and more effective charge transfer between the FG and the water molecule.","PeriodicalId":101496,"journal":{"name":"2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123037287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Effect of Dielectric and Stiffness of Soft Material between the Electrodes of a Capacitive Pressure Sensor on its Performance 电容式压力传感器电极间软质材料介电介质和刚度对其性能的影响

2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) Pub Date : 2020-08-16 DOI: 10.1109/FLEPS49123.2020.9239583

Yogeenth Kumaresan, Oliver Ozioko, R. Dahiya

{"title":"Effect of Dielectric and Stiffness of Soft Material between the Electrodes of a Capacitive Pressure Sensor on its Performance","authors":"Yogeenth Kumaresan, Oliver Ozioko, R. Dahiya","doi":"10.1109/FLEPS49123.2020.9239583","DOIUrl":"https://doi.org/10.1109/FLEPS49123.2020.9239583","url":null,"abstract":"The soft dielectric material between the electrodes of a parallel plate type capacitive pressure sensor plays a key role in their overall response. Yet its influence has not been studied. Herein, capacitive pressure sensors fabricated with different elastomeric dielectric layers have been used to evaluate the performance. Ecoflex™ and Polydimethysiloxane (PDMS) with three different stiffnesses are utilized to fabricate four capacitive pressor sensors and their sensing performance compared. The Ecoflex-based pressure sensor reveals higher sensitivity, of 4.11kPa$^{-1}$ than the PDMS-based sensors (1.11kPa $^{-1}$) at a low-pressure regime $(lt 1$ kPa), which is suitable for light touch. With the sensitivities of 2.32kPa $^{-1}$ and 0.08kPa $^{-1}$ in the region 1 (1 to 10kPa) and region 2 (10 to 160kPa) respectively, the PDMS with 7.5:1 ratio reveals highest sensitivity among the three PDMS-based devices. The results indicate that careful selection of soft dielectric layer is important for obtaining pressure or touch sensor with desired sensitivity.","PeriodicalId":101496,"journal":{"name":"2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128027495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

A Flexible Dry ECG Patch for Heart Rate Variability Monitoring 一种用于心率变异性监测的柔性干式ECG贴片

2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) Pub Date : 2020-08-16 DOI: 10.1109/FLEPS49123.2020.9239511

Meraj Ahmad, Shahid Malik, Laxmeesha Somappa, S. Sonkusale, M. Baghini

引用次数: 1

Wearable E-Textile Wireless RF Power Supply based on a Textile Supercapacitor and a Flexible Rectenna Filament 基于纺织超级电容器和柔性整流天线灯丝的可穿戴电子纺织无线射频电源

2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) Pub Date : 2020-08-16 DOI: 10.1109/FLEPS49123.2020.9239429

Mahmoud Wagih, N. Hillier, S. Yong, A. Weddell, S. Beeby

引用次数: 3

Flexible Graphene Textile RFID Tags Based on Spray, Dispense and Contact Printing 基于喷雾、点胶和接触印刷的柔性石墨烯纺织RFID标签

2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) Pub Date : 2020-08-16 DOI: 10.1109/FLEPS49123.2020.9239557

Tugce Delipinar, Ekin Asim Ozek, Ceyda Elcin Kaya, Sercan Tanyeli, M. Yapici

{"title":"Flexible Graphene Textile RFID Tags Based on Spray, Dispense and Contact Printing","authors":"Tugce Delipinar, Ekin Asim Ozek, Ceyda Elcin Kaya, Sercan Tanyeli, M. Yapici","doi":"10.1109/FLEPS49123.2020.9239557","DOIUrl":"https://doi.org/10.1109/FLEPS49123.2020.9239557","url":null,"abstract":"Radio frequency identification (RFID) is a well-established technology, which finds use in applications including inventory management, security, logistics, product marketing, as well as next generation flexible sensor platforms. Meanwhile, there is growing interest to use 2D materials like graphene in sensing due to its high surface to volume ratio, excellent electrical, mechanical and thermal properties. This paper capitalizes on the unique properties of graphene and ordinary fabrics and reports on the development of graphene textile-based RFID tags operating at 13.56 MHz for potential application in wearable and flexible electronics. Patterning of graphene on textile surfaces was achieved by low-cost technologies including spray, dispense and contact printing to yield circular and rectangular RFID tags with a maximum range of 3 cm and induced voltage of up to 78 mV peak-to-peak at an area of 18 cm2. Operation of the graphene textile RFID tags under different bending scenarios was tested to demonstrate the proof-of-concept in flexible and wearable sensing applications.","PeriodicalId":101496,"journal":{"name":"2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)","volume":"195 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115643926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1