Giuseppe Cantarella;Sara Carniello;Clara Santato;Shree Prakash Tiwari
{"title":"Guest Editorial Special Issue on Circular, Sustainable, and Green Electronics","authors":"Giuseppe Cantarella;Sara Carniello;Clara Santato;Shree Prakash Tiwari","doi":"10.1109/JFLEX.2025.3573112","DOIUrl":"https://doi.org/10.1109/JFLEX.2025.3573112","url":null,"abstract":"","PeriodicalId":100623,"journal":{"name":"IEEE Journal on Flexible Electronics","volume":"4 5","pages":"163-164"},"PeriodicalIF":0.0,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11075805","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Matti Mantysalo;Gaetano Marrocco;Shweta Agarwale;Gerd Grau;Wei Gao
{"title":"Guest Editorial: Special Issue of Selected Extended Papers From the IEEE International Conference on Flexible, Printable Sensors and Systems (FLEPS) 2024","authors":"Matti Mantysalo;Gaetano Marrocco;Shweta Agarwale;Gerd Grau;Wei Gao","doi":"10.1109/JFLEX.2025.3556389","DOIUrl":"https://doi.org/10.1109/JFLEX.2025.3556389","url":null,"abstract":"","PeriodicalId":100623,"journal":{"name":"IEEE Journal on Flexible Electronics","volume":"4 1","pages":"2-3"},"PeriodicalIF":0.0,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10977762","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143875103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optimizing Material Choices for Flexible Pressure Sensors Driven by Triboelectric Nanogenerators","authors":"Neeraj;Navneet Gupta","doi":"10.1109/JFLEX.2025.3560942","DOIUrl":"https://doi.org/10.1109/JFLEX.2025.3560942","url":null,"abstract":"This study shows the investigations on optimal dielectric material for self-powered flexible pressure sensors (SPFPSs) based on triboelectric nanogenerators (TENGs) using multiple criteria decision-making (MCDM) methods. Specifically, we utilized technique for order preference by similarity to ideal solution (TOPSIS) and VlseKriterijumska Optimizacija I Kompromisno Resenje (VIKOR) techniques to identify potential dielectric materials. Several materials attributes, such as surface charge density, coefficient of friction, and dielectric constant, are examined to find out the best dielectric material. Through the TOPSIS and VIKOR ranking systems, we determined that polydimethylsiloxane (PDMS) is the most suitable dielectric material for TENG-based SPFPSs. The result presents a strong alignment across material selection methods and simulations that validates the robustness of our proposed outcomes.","PeriodicalId":100623,"journal":{"name":"IEEE Journal on Flexible Electronics","volume":"4 4","pages":"146-153"},"PeriodicalIF":0.0,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10971378","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144323210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Henry Lei;Tirth Patel;Jerry Lopez;J. Devin MacKenzie
{"title":"Screen-Printed Flexible Antennas for 24-GHz ISM Band and mmWave Applications","authors":"Henry Lei;Tirth Patel;Jerry Lopez;J. Devin MacKenzie","doi":"10.1109/JFLEX.2025.3560936","DOIUrl":"https://doi.org/10.1109/JFLEX.2025.3560936","url":null,"abstract":"In this work, the flexible antennas additively manufactured via screen printing of copper conductive inks are presented. Antennas, such as straight dipoles, meandering dipoles, and circular disk monopoles, are designed for operation at 24 GHz and then manufactured on a variety of flexible substrates, namely, polyimide, glass, and alumina ribbon ceramics (ARCs). A resolution of <inline-formula> <tex-math>$50~mu $ </tex-math></inline-formula>m width and spacing was obtained at a printing speed of 10000 mm<sup>2</sup>/s. A minimum bend radius of 6.25 mm was achieved for the flexible antennas. Antenna’s return loss and antenna pattern were measured and found to be in agreement with simulation. To the best of our knowledge, this is the first report of a flexible screen-printed 24-GHz antenna on ceramics with copper metallization.","PeriodicalId":100623,"journal":{"name":"IEEE Journal on Flexible Electronics","volume":"4 4","pages":"138-145"},"PeriodicalIF":0.0,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144323017","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":"Thermal Conductivity Measurement of Extrusion-Printed Silver Using Modulated Photothermal Radiometry","authors":"Javier Corona;Ellie Schlake;Nirmala Kandadai","doi":"10.1109/JFLEX.2025.3557762","DOIUrl":"https://doi.org/10.1109/JFLEX.2025.3557762","url":null,"abstract":"Flexible printed electronics is a rapidly growing field with applications in conformal and flexible devices. However, the physical properties of the films created by many state-of-the-art printing methods become highly dependent on printing parameters, resulting in varying thermal properties often differing significantly from their bulk ink components. To understand the influence of the printing process, we build upon our previous work, where a noncontact optical technique, known as modulated photothermal radiometry (MPTR), was used to measure the thermal conductivity of aerosol-jet-printed thin films. In this work, we use the method to study the thermal properties of extrusion-printed silver on glass and alumina substrates. A noise-resistant data analysis fitting technique is applied using a 2-D heat transfer model. The thermal conductivity measurement is validated using the Weidemann-Franz (WF) relationship from measured electrical conductivity values.","PeriodicalId":100623,"journal":{"name":"IEEE Journal on Flexible Electronics","volume":"4 3","pages":"126-136"},"PeriodicalIF":0.0,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073186","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}
Remya Kunjuveettil Govind;Akshay Sunil;Aravind Sureshkumar;Haritha Rejani;Sreelakshmi Shibu Yamuna;Alex James
{"title":"Graphene Nanocomposite-Based Flexible and Conducting Electrodes for Touch Panel and Heater Applications With Machine Learning-Assisted Smart Performance","authors":"Remya Kunjuveettil Govind;Akshay Sunil;Aravind Sureshkumar;Haritha Rejani;Sreelakshmi Shibu Yamuna;Alex James","doi":"10.1109/JFLEX.2025.3555955","DOIUrl":"https://doi.org/10.1109/JFLEX.2025.3555955","url":null,"abstract":"Flexible conducting electrodes form an integral part in many applications from optoelectronics to photovoltaics and sensors. Although strategies to improve performance have been reported, challenges exist in the smart performance of the electrodes in devices with real-time feedback and integration with advanced techniques such as the Internet of Things (IoT). This work demonstrates an approach to achieve smart performance using flexible conducting electrodes based on graphene nanoplatelets (GNPs)/poly(3,4-ethylenedioxythiophene):poly (styrenesulfonate) (PEDOT:PSS) nanocomposite by the incorporation of machine learning methods. Applications of the electrodes as smart electrothermal heater and touch panel have been demonstrated with intelligent performance. The integration of machine learning methods ensures smart functioning and helps to achieve better functionalities in both applications. This work paves the way for significant advancements in flexible electronics and touchscreen technology with the assistance of machine learning strategies.","PeriodicalId":100623,"journal":{"name":"IEEE Journal on Flexible Electronics","volume":"4 3","pages":"117-125"},"PeriodicalIF":0.0,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10945855","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}