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

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Refractive Index Measurement with a Flexible OLED-OPD Detection Unit 折射率测量与柔性OLED-OPD检测单元
2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) Pub Date : 2020-08-16 DOI: 10.1109/FLEPS49123.2020.9239472
Igor Titov, M. Köpke, M. Gerken
{"title":"Refractive Index Measurement with a Flexible OLED-OPD Detection Unit","authors":"Igor Titov, M. Köpke, M. Gerken","doi":"10.1109/FLEPS49123.2020.9239472","DOIUrl":"https://doi.org/10.1109/FLEPS49123.2020.9239472","url":null,"abstract":"The refractive index (RI) of liquids plays an important role in chemical analysis and medical diagnostics. Here, we present the integration of a flexible substrate with 6 blue organic light emitting diodes (OLEDs) and 6 organic photodetectors (OPDs) with a flexible microfluidic system formed in polydimethylsiloxane (PDMS). The devices are fabricated by masked thermal evaporation on a $200 mu mathrm{m}$ thick polyethylene terephthalate (PET) foil. The individual size of the organic devices is 1 mm x 1 mm. Successful operation of the OLED-OPD matrix for refractive index measurements is demonstrated. This system is intended for RI monitoring of multiple analytes or for analyzing a single analyte with a distributed concentration.","PeriodicalId":101496,"journal":{"name":"2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)","volume":"18 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":"125684015","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
Flexible Dual chip on-skin RFID Sensor for Body Temperature Monitoring 用于体温监测的柔性双芯片皮肤RFID传感器
2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) Pub Date : 2020-08-16 DOI: 10.1109/FLEPS49123.2020.9239531
C. Occhiuzzi, S. Parrella, G. Marrocco
{"title":"Flexible Dual chip on-skin RFID Sensor for Body Temperature Monitoring","authors":"C. Occhiuzzi, S. Parrella, G. Marrocco","doi":"10.1109/FLEPS49123.2020.9239531","DOIUrl":"https://doi.org/10.1109/FLEPS49123.2020.9239531","url":null,"abstract":"A flexible dual chip UHF RFID epidermal sensor tag is here proposed for monitoring human body temperature. A multi-mode square loop configuration has been loaded by two orthogonal matching elements whose position and shape are such to simultaneously optimize the reading performance of both ICs. Thanks to the presence of two independent sensors, the device is able to perform differential measurements respect to the body position (the acquisition points are slightly delocalized) and to the external environment. The device is hence a concept of a single heat-flux thermometer to be used to estimate the core temperature of the body.","PeriodicalId":101496,"journal":{"name":"2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)","volume":"51 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":"130409911","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: 2
Touch Interactive 3D Surfaces 触摸交互式3D表面
2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) Pub Date : 2020-08-16 DOI: 10.1109/FLEPS49123.2020.9239553
Adamos Christou, R. Dahiya
{"title":"Touch Interactive 3D Surfaces","authors":"Adamos Christou, R. Dahiya","doi":"10.1109/FLEPS49123.2020.9239553","DOIUrl":"https://doi.org/10.1109/FLEPS49123.2020.9239553","url":null,"abstract":"This paper presents the design and implementation of a touch interactive 3D surface using frustrated total internal reflection (FTIR). Using a simple and scalable approach, the touch sensing is enabled all around a transparent acrylic pyramid surface. The developed system steers away from the conventional flat touch surfaces thus enabling touch-based control of applications such as volumetric holographic displays. The potential of presented system also lies in gesture-based control of holographic displays.","PeriodicalId":101496,"journal":{"name":"2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)","volume":"69 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":"133729328","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
Development of a PPG Sensor Array as a Wearable Device to Monitor Cardiovascular Metrics 可穿戴式心血管指标监测装置PPG传感器阵列的研制
2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) Pub Date : 2020-08-16 DOI: 10.1109/FLEPS49123.2020.9239440
J. I. Rodriguez-Labra, C. Kosik, D. Maddipatla, B. B. Narakathu, M. Atashbar
{"title":"Development of a PPG Sensor Array as a Wearable Device to Monitor Cardiovascular Metrics","authors":"J. I. Rodriguez-Labra, C. Kosik, D. Maddipatla, B. B. Narakathu, M. Atashbar","doi":"10.1109/FLEPS49123.2020.9239440","DOIUrl":"https://doi.org/10.1109/FLEPS49123.2020.9239440","url":null,"abstract":"Wearable devices with integrated sensors for tracking human vitals are widely used for a variety of applications, including exercise, wellness, and health monitoring. Photoplethysmography (PPG) sensors use pulse oximetry to measure pulse rate, cardiac cycle, oxygen saturation, and blood flow by passing a beam of variable wavelength through the skin and measuring its reflection. A multichannel PPG wearable system was developed to include multiple nodes of pulse oximeters, each capable of using different wavelengths of light. The system used sensor fusion to perform feature extraction of relevant cardiovascular metrics across multiple pulse oximeters. The wearable system was applied to the plant of the foot for vascular assessment. Wearable PPG systems capable of sensor fusion show promise as continuous methods for the evaluation of wounds and diseases associated with abnormal blood flow.","PeriodicalId":101496,"journal":{"name":"2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)","volume":"106 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":"132161492","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
Assessing the Stability of Printed NWs by in situ SEM Characterisation 用原位扫描电镜(SEM)表征技术评价印刷纳米粒子的稳定性
2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) Pub Date : 2020-08-16 DOI: 10.1109/FLEPS49123.2020.9239461
Adamos Christou, Fengyuan Liu, R. Dahiya
{"title":"Assessing the Stability of Printed NWs by in situ SEM Characterisation","authors":"Adamos Christou, Fengyuan Liu, R. Dahiya","doi":"10.1109/FLEPS49123.2020.9239461","DOIUrl":"https://doi.org/10.1109/FLEPS49123.2020.9239461","url":null,"abstract":"Quasi-1D nanowires (NWs) have shown a great potential for the large-area flexible electronics due to their excellent electronic and optoelectronic properties and high mechanical flexibility. The growth of high-quality NWs often requires a high temperature process, which is incompatible with most of flexible substrates. In this regard, a printing strategy has been adopted to decouple the synthesis process from thermally sensitive polymeric substrates. This paper presents a detailed study on the selective printing of NWs using contact printing. In situ scanning electron microscope (SEM) characterizations have been employed here to illustrate the robustness of printed NWs after carrying out various standard microfabrication processes. This study improves our understanding of the NW printing process and lays a strong foundation for the realization of devices and systems such as electronic skin using the NW printing approach.","PeriodicalId":101496,"journal":{"name":"2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)","volume":"70 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":"114563734","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
Binary Neural Network as a Flexible Integrated Circuit for Odour Classification 二值神经网络作为气味分类的柔性集成电路
2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) Pub Date : 2020-08-16 DOI: 10.1109/FLEPS49123.2020.9239529
Emre Ozer, Jedrzej Kufel, J. Biggs, James Myers, Charles Reynolds, Gavin Brown, Anjit Rana, A. Sou, C. Ramsdale, Scott White
{"title":"Binary Neural Network as a Flexible Integrated Circuit for Odour Classification","authors":"Emre Ozer, Jedrzej Kufel, J. Biggs, James Myers, Charles Reynolds, Gavin Brown, Anjit Rana, A. Sou, C. Ramsdale, Scott White","doi":"10.1109/FLEPS49123.2020.9239529","DOIUrl":"https://doi.org/10.1109/FLEPS49123.2020.9239529","url":null,"abstract":"This paper presents the development of a binary neural network (BNN) hardware in metal-oxide thin film transistor (TFT) technology on a flexible substrate. We develop the BNN for a sweat odour application that takes data from an e-nose sensor array detecting odour, and classifies the odour. We demonstrate a fully functional BNN flexible integrated circuit (FlexIC) fabricated in $0.8 mu mathrm{m}$ n-type metal-oxide TFT on polyimide, consuming around 1mW power, which becomes the first neural network hardware built as a FlexIC.","PeriodicalId":101496,"journal":{"name":"2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)","volume":"32 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":"114302771","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: 7
Multifunction Force Sensor with Hollow Structure 中空结构多功能力传感器
2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) Pub Date : 2020-08-16 DOI: 10.1109/FLEPS49123.2020.9239471
Yu-Hao Jen, Chia-Tso Mo, Yu-Wen Chen, C. Lo
{"title":"Multifunction Force Sensor with Hollow Structure","authors":"Yu-Hao Jen, Chia-Tso Mo, Yu-Wen Chen, C. Lo","doi":"10.1109/FLEPS49123.2020.9239471","DOIUrl":"https://doi.org/10.1109/FLEPS49123.2020.9239471","url":null,"abstract":"In this study, the material of the dielectric layer was changed to reduce the structural rigidity of a capacitive tactile sensor, achieving the result of increasing the detection sensitivity without affecting the spatial resolution. Simulation and experimental results showed that the sensitivity of the sensor can be greatly improved by changing the elastomeric dielectric layer from a solid structure to a hollow structure. When the normal force was 0.25 N, the average detection sensitivity of the hollow structure was 32 pF/ N. Compared with the solid counterpart, the sensitivity was increased by roughly 600 times. When the shear force was 1.5 N, the average detection sensitivity of the hollow structure was 0.1 pF/N. Compared with the solid counterpart, it showed an improvement of at least five times regardless of the shear angle. In addition, the measured shear angle exhibited a tolerance of no more than 4°, which was similar to the announced sensors.","PeriodicalId":101496,"journal":{"name":"2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)","volume":"4 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":"116506603","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
Development of a Novel and Flexible MWCNT/PDMS Based Resistive Force Sensor 一种新型柔性MWCNT/PDMS电阻力传感器的研制
2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) Pub Date : 2020-08-16 DOI: 10.1109/FLEPS49123.2020.9239548
X. Zhang, A. K. Bose, D. Maddipatla, S. Masihi, V. Palaniappan, M. Panahi, B. B. Narakathu, M. Atashbar
{"title":"Development of a Novel and Flexible MWCNT/PDMS Based Resistive Force Sensor","authors":"X. Zhang, A. K. Bose, D. Maddipatla, S. Masihi, V. Palaniappan, M. Panahi, B. B. Narakathu, M. Atashbar","doi":"10.1109/FLEPS49123.2020.9239548","DOIUrl":"https://doi.org/10.1109/FLEPS49123.2020.9239548","url":null,"abstract":"A novel multi-walled carbon nanotubes (MWCNTs) and polydimethylsiloxane (PDMS) based resistive force sensor was fabricated using screen printing and laser-pattering processes for detecting various applied forces. The electrodes for the force sensor was developed by depositing silver (Ag) ink on a flexible polyimide substrate using screen printing process. The honey comb structured and unstructured active sensing layers of the force sensors were prepared by laser patterning the MWCNT/PDMS composite. A surface roughness of $1.65 pm 0.10 mumathrm{m}$ and $0.43 pm 0.08 mumathrm{m}$ was measured for the printed electrodes and MWCNT/PDMS, respectively. The capability of the printed sensor was investigated by subjecting it to varying forces ranging from 0 N (no force) to 20 N. The results demonstrated an overall relative resistance change of ~19% and ~5% for the force sensors with honey comb structured and un structured active layers. The fabrication method and sensor responses are analyzed and presented in this paper.","PeriodicalId":101496,"journal":{"name":"2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)","volume":"39 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":"114572116","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: 7
[FLEPS 2020 Copyright notice] [FLEPS 2020版权声明]
2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) Pub Date : 2020-08-16 DOI: 10.1109/fleps49123.2020.9239476
{"title":"[FLEPS 2020 Copyright notice]","authors":"","doi":"10.1109/fleps49123.2020.9239476","DOIUrl":"https://doi.org/10.1109/fleps49123.2020.9239476","url":null,"abstract":"","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":"131843500","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
Kinetic Analysis of the VLS Growth of Semiconducting Nanowires 半导体纳米线VLS生长的动力学分析
2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) Pub Date : 2020-08-16 DOI: 10.1109/FLEPS49123.2020.9239428
D. Shakthivel, Adamos Christou, R. Dahiya
{"title":"Kinetic Analysis of the VLS Growth of Semiconducting Nanowires","authors":"D. Shakthivel, Adamos Christou, R. Dahiya","doi":"10.1109/FLEPS49123.2020.9239428","DOIUrl":"https://doi.org/10.1109/FLEPS49123.2020.9239428","url":null,"abstract":"Vapour-Liquid-Solid (VLS) growth mechanism is a popular method for the growth of inorganic semiconducting nanowires (NWs) in the diameter range of sub-100 nm. A kinetic model is presented for the growth of elemental (Si) and binary $(SiO_{mathrm{x}})$ NWs by incorporating all the atomistic parameters. Importantly, the model connects the macroscopic experimental parameters such as temperature, pressure and catalyst particle with atomistic aspects such as supersaturation, energy barriers and interface diffusivity. The thermodynamic driving force for the NWs growth is estimated by balancing various injection-ejection processes occurring at the catalyst droplet. Using the kinetic framework, the steady state Si concentration in the Au-Si droplet is estimated for the catalyst diameter in the range of 10-100nm. The calculated NWs growth rates were observed to be within an order of magnitude in comparision with the experimentally measured values.","PeriodicalId":101496,"journal":{"name":"2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)","volume":"125 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":"121152645","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
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