2018 International Flexible Electronics Technology Conference (IFETC)最新文献

{"title":"Fully printed parallel plate capacitance humidity sensors","authors":"Mickey Chen, Zhiyi Zhang, H. Ding, Stephen Lang, Y. Tao, T. Chu, G. Xiao, Neil Graddage, Kevin Ton","doi":"10.1109/IFETC.2018.8583867","DOIUrl":"https://doi.org/10.1109/IFETC.2018.8583867","url":null,"abstract":"Printed humidity sensors on flexible substrates has potential to be low cost platform. A novel capacitance-humidity sensor was screen printed with silver electrodes and cellulose acetate butyrate (CAB) as the dielectric on flexible polyethylene terephthalate (PET) substrate. The parallel plate design achieves capacitance between 400–500pF at ambient conditions. This study found that the sensor exhibits superior linearity from 10–70%RH with R2 of 0.9975, and acceptable linearity between 10–85% with R2 of 0.9779 with <10s response times.","PeriodicalId":6609,"journal":{"name":"2018 International Flexible Electronics Technology Conference (IFETC)","volume":"259 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77681143","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}

{"title":"Contacts with Nanocarbon Structures in Flexible Electronics","authors":"J. Park, C. Zhou, C. Y. Yang","doi":"10.1109/IFETC.2018.8583869","DOIUrl":"https://doi.org/10.1109/IFETC.2018.8583869","url":null,"abstract":"We present a review of existing published works on carbon nanostructures such as graphene, carbon nanotubes, and carbon nanofibers, including their use as MOSFET channel and/or interconnect materials. The characteristics of material contacts with carbon-based nanostructures are examined for potential applications in flexible wearable electronics. Combining results of electrical measurements and interface characterization provides the necessary knowledge for continuous improvements of the nanostructure fabrication process and contact properties.","PeriodicalId":6609,"journal":{"name":"2018 International Flexible Electronics Technology Conference (IFETC)","volume":"70 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74627586","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}

{"title":"Do-It-Yourself (DIY) based Flexible Paper Sensor Based Electronic System for Pill Health Monitoring","authors":"S. Khan, N. Qaiser, M. Hussain","doi":"10.1109/IFETC.2018.8583843","DOIUrl":"https://doi.org/10.1109/IFETC.2018.8583843","url":null,"abstract":"Here we show, Do-It-Yourself (DIY) integration strategy of a low-cost paper sensor based flexible electronic system, using anisotropic conductive tape. The whole assembly is housed inside the cap of a prescription drug container to continuously monitor health of pills. These flexible modular decal sensors are connected with a central flexible decal electronic interface. Additionally, this simple easy-to-use DIY based integration strategy gives the flexibility to develop customized versions of the system depending on the requirements of different applications. This add-on system is easy to install or remove allowing easier implementation for practical use to monitor pill health using Internet-of-Things devices.","PeriodicalId":6609,"journal":{"name":"2018 International Flexible Electronics Technology Conference (IFETC)","volume":"35 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80007924","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}

{"title":"Plasma Functionalised GNP for Volume Printed Flexible Electronics","authors":"T. Claypole, Andrew Claypole, J. Claypole, Sarah-Jane Potts, T. Mortensen","doi":"10.1109/IFETC.2018.8583972","DOIUrl":"https://doi.org/10.1109/IFETC.2018.8583972","url":null,"abstract":"GNP (Graphene Nano Platelets) have the potential to create cost-effective electronic inks for a wide range of volume printed applications. However, in common with other nano carbons these are inherently inert making it difficult to bond and disperse. While some naturally occurring functional groups, such as oxygen, ethers, carboxyls or hydroxyls, are attached to the raw GNP, adding to or modifying these chemical groups, in a controlled fashion can exfoliate sheets, improve consistency and enable tailored interactions. It also enhances particle separation and improves dispersion, which are key factors for the manufacture of functional inks. This also enables the formulation of functional inks for applications such as printed electronics, sensors, energy storage, smart packaging and wearable technology.A low temperature, dry plasma process based on tumbling nano materials through a plasma has the capability to add a range of functional groups in a high volume scalable process. The functional groups added depend on the plasma gas with the quantity dependent on the processing time. It has been postulated that the functional groups attach to the edge of the graphene sheets and at defect sites. In order to gain insight into the location and the nature of the attachment of the chemical groups, Scanning Transmitting Electron Microscope (STEM) was used to study the atomic structures of the functionalised GNP’s. This confirmed that the various functional groups had attached to the edge of the graphene sheets. The number of layers towards the centre of the GNP meant it was not possible to identify whether there were also loosely bonded groups attached to the surface or chemically bonded to defects.Further insight into the effect of the functionalisation was gained by formulating inks to study the rheology of the ink and printability. Model inks were created with GNPs with different functional groups. A combination of rheological measures, including constant shear, Small Amplitude Oscillatory Shear (SAOS) and Controlled Stress Parallel Superposition (CSPS), were used to establish the relationships between carbon loading, functionalisation and printability. These techniques also have potential applications for ink quality assurance and formulation.Inks with properties ranging from flexible conductive inks to pressure sensing inks were made by adding carbon black and graphite. These can be printed over large areas using conventional processes such screen printing, flexography and roller coating. The performance was dependent on the blend of nano carbons and the other components in the ink. Triple roll milling was used to homogenise the ink. The high shear forces this induces causes further exfoliation of some of the GNP’s, leading to inks containing a mix of graphene, FLG and GNP’s. Screen printable conductive and pressure sensor inks have been created. The latter has unique properties as it is sensitive in one direction only which enables the creation of very","PeriodicalId":6609,"journal":{"name":"2018 International Flexible Electronics Technology Conference (IFETC)","volume":"59 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82311582","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}

{"title":"A 3D Printed Flexible Passive RFID for Temperature Sensing","authors":"Ramita Trangkanukulkij, Taeil Kim, W. Kim","doi":"10.1109/IFETC.2018.8583913","DOIUrl":"https://doi.org/10.1109/IFETC.2018.8583913","url":null,"abstract":"The 3D printed passive radio frequency identification (RFID) tags with integrated electronic components on flexible polyimide is fabricated. The RF antenna and chip interconnection are printed with a silver nanoparticle based conductive ink. The antenna was optimized to match with resonance frequency of RFID chip as 910 MHz. And components and an RFID chip are mounted and soldered. Selected RFID chip contains electronic product code (EPC) and built-in temperature sensor, which allows temperature sensing ability as well as multiple identification.","PeriodicalId":6609,"journal":{"name":"2018 International Flexible Electronics Technology Conference (IFETC)","volume":"1 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82332661","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}

{"title":"Novel Approach to Print Submicron Conductive Lines: From the Fundamental Process to the Laboratory Printer","authors":"P. Kowalczewski, A. Wiatrowska, M. Dusza, Maciej Zięba, P. Cichon, Krzysztof Fijak, F. Granek","doi":"10.1109/IFETC.2018.8583842","DOIUrl":"https://doi.org/10.1109/IFETC.2018.8583842","url":null,"abstract":"We present a comprehensive approach to print submicron conductive lines at unprecedented flexibility, accuracy, and low cost. We will discuss both the fundamental process of a guided assembly of nanoparticles and its implementation in the XTPL Submicron Lab Printer. Finally, we demonstrate a number of potential applications of this technology.","PeriodicalId":6609,"journal":{"name":"2018 International Flexible Electronics Technology Conference (IFETC)","volume":"97 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82719210","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}

{"title":"Carbon Based Electrode for Wearable Biosignal Monitoring Patch","authors":"Ha-Chul Jung, Dahye Kwon, Seung-A Lee, J. Ahn, A. Kim, Young-Jin Kim, Jinhee Moon","doi":"10.1109/IFETC.2018.8583893","DOIUrl":"https://doi.org/10.1109/IFETC.2018.8583893","url":null,"abstract":"We fabricated a novel patch type flexible dry electrode for long-term bio signal monitoring by mixing carbon nanofibers (CNFs) in biocompatible-elastomer (MED6015). The CNFs are high conductivity, low price and easy dispersed in elastomer uniformly related with CNTs (Carbon nanotubes). The fabricated CNFs electrodes are coated with sticky elastomer (MG7-9850) to attach on skins without any other adhesive. The mixing ratio of CNFs and elastomer is diverse to compare electrical and mechanical characteristics. ECG (Electrocardiography) signal quality, sweat effects and motion effects are evaluated and the fabricated electrode was shown good quality of signals and tolerant from both effects. Also the electrode was shown to be biocompatible from biocompatibility test. These electrodes could be used for the long-term measurement of bio potential monitoring and wearable devices.","PeriodicalId":6609,"journal":{"name":"2018 International Flexible Electronics Technology Conference (IFETC)","volume":"24 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84839303","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}

{"title":"1cm2 sub-1V Capacitive-Coupled Thin Film ID-Tag using Metal-oxide TFTs on Flexible Substrate","authors":"N. Papadopoulos, S. Smout, M. Willegems, Marc Ameys, Ganesh Rathinavel, G. Beeckman, J. Stuijt, K. Myny","doi":"10.1109/IFETC.2018.8583891","DOIUrl":"https://doi.org/10.1109/IFETC.2018.8583891","url":null,"abstract":"In this paper a capacitive coupled radio-frequency identification tag fabricated on flexible thin-film substrate is presented. The antenna of the tag is monolithic integrated “on-chip”. The footprint of the tag is defined by the size of the antenna, 1cm2. The tag operated at 24V applied reader voltage at a frequency of 1MHz. The achieved data transmission speed of the thin-film tag is 5.8kbps. The technology is a unipolar indium gallium zinc oxide (IGZO) self-aligned transistor architecture.","PeriodicalId":6609,"journal":{"name":"2018 International Flexible Electronics Technology Conference (IFETC)","volume":"69 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89515338","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}

{"title":"Flexible Green Perovskite Light Emitting Diodes","authors":"G. Cantarella, Sudhir Kumar, J. Jagielski, C. Shih, G. Tröster","doi":"10.1109/IFETC.2018.8583906","DOIUrl":"https://doi.org/10.1109/IFETC.2018.8583906","url":null,"abstract":"Flexible perovskite light-emitting diodes (LEDs) have attracted increasing interest to realize ultrathin, light weight, highly conformable and nonfragile vivid displays. Solution-processed lead halide perovskite offers numerous distinctive characteristics such as pure emission color, tunable bandgaps, and low fabrication cost. In this letter, green perovskite LEDs (PeLEDs) are fabricated on 50 μm thin polyimide substrates. Using colloidal 2D formamidinium lead bromide perovskite emitter, the PeLEDs show a high current efficiency (ηCE) of 5.3 cd A−1 with a peak emission at 529 ± 1 nm and a narrow width of 22.8 nm. The resultant green emission shows a record high color saturation, > 95%, in the Rec. 2020 standard gamut area. To demonstrate their mechanical flexibility, the device functionality is proved by dynamic bending experiments down to 10 mm up to 5000 cycles, resulting in device lifetime over 36 h in glove box and a drop of ηCE and external quantum efficiency (ηxt) as low as 15 % and 18 %, respectively.","PeriodicalId":6609,"journal":{"name":"2018 International Flexible Electronics Technology Conference (IFETC)","volume":"6 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80640979","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}

{"title":"Comparative analysis of 1-bit memory cell in CMOS and QCA technology","authors":"Rupinder Kaur, N. Saluja","doi":"10.1109/IFETC.2018.8584033","DOIUrl":"https://doi.org/10.1109/IFETC.2018.8584033","url":null,"abstract":"Circuit designing with quantum dot cellular automata is one of the most recent technologies which aim at scaling of devices. In this logic design technique, the organization of quantum cells defines the circuit. It is based on field coupled computing. The quantum dot cellular automata has numerous advantages including less area occupied, lack of interconnects, higher clock frequency, and since it doesn’t involve transfer of electrons or flow of current, it has the potential to perform low power calculation. This paper presents the comparison of 1-bit memory cell designed using CMOS technology and quantum dot cellular technology. The quantum dot cellular technology results in lesser occupied area at high clock frequency.","PeriodicalId":6609,"journal":{"name":"2018 International Flexible Electronics Technology Conference (IFETC)","volume":"102 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85411093","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}