Flexible and Printed Electronics最新文献_第2页

All inkjet-printed organic solar cells on 3D objects 三维物体上的所有喷墨打印有机太阳能电池

IF 3.1 4区工程技术

Flexible and Printed Electronics Pub Date : 2024-06-19 DOI: 10.1088/2058-8585/ad50e7

Marc Steinberger, Andreas Distler, Johannes Hörber, Kai Cheong Tam, Christoph J Brabec and Hans-Joachim Egelhaaf

{"title":"All inkjet-printed organic solar cells on 3D objects","authors":"Marc Steinberger, Andreas Distler, Johannes Hörber, Kai Cheong Tam, Christoph J Brabec and Hans-Joachim Egelhaaf","doi":"10.1088/2058-8585/ad50e7","DOIUrl":"https://doi.org/10.1088/2058-8585/ad50e7","url":null,"abstract":"Drop-on-demand inkjet printing is a promising and commercially relevant technology for producing organic electronic devices of arbitrary shape on a wide variety of different substrates. In this work we transfer the inkjet printing process of organic photovoltaic devices from 2D to 3D substrates, using a 5-axis robot system equipped with a multi-nozzle inkjet printing unit. We present a ready-to-use 3D printing system for industrial application, using a 5-axis motion system controlled by commercial 3D motion software, combined with a commonly used multi-nozzle inkjet print head controlled by the corresponding printing software. The very first time inkjet-printed solar cells on glass/ITO with power conversion efficiencies (PCEs) of up to 7% are realized on a 3D object with surfaces tilted by angles of up to 60° against the horizontal direction. Undesired ink flow during deposition of the inkjet-printed layers was avoided by proper ink formulation. In order to be able to print organic (opto-)electronic devices also on substrates without sputtered indium tin oxide bottom electrode, the bottom electrode was inkjet-printed from silver nanoparticle (AgNP) ink, resulting in the first all inkjet-printed (i.e. including bottom electrode) solar cell on a 3D object ever with a record PCE of 2.5%. This work paves the way for functionalizing even complex objects, such as cars, mobile phones, or ‘Internet of Things’ applications with inkjet-printed (opto-)electronic devices.","PeriodicalId":51335,"journal":{"name":"Flexible and Printed Electronics","volume":"92 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141508888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improving durability and electrical performance of flexible printed e-textile conductors via domestic ironing 通过家用熨烫提高柔性印刷电子织物导体的耐用性和电气性能

IF 3.1 4区工程技术

Flexible and Printed Electronics Pub Date : 2024-06-07 DOI: 10.1088/2058-8585/ad517d

Abiodun Komolafe, Steve Beeby, Russel Torah

{"title":"Improving durability and electrical performance of flexible printed e-textile conductors via domestic ironing","authors":"Abiodun Komolafe, Steve Beeby, Russel Torah","doi":"10.1088/2058-8585/ad517d","DOIUrl":"https://doi.org/10.1088/2058-8585/ad517d","url":null,"abstract":"The electrical performance of printed conductors often degrades over time due to recurrent or infrequent exposure to practical stresses such as bending and washing. To avoid this, a repair mechanism is required to return the conductor to prime condition, enhancing lifetime and durability during extended stress cycles. In this study, domestic ironing is used to repair and restore the electrical resistance of printed conductors damaged by prolonged bending and washing cycles at standard ironing temperatures. The results of reliability tests on screen-printed conductors on two polyurethane-coated fabrics and six different laminate sheets adhered to the fabrics revealed that ironing significantly enhances the electrical performance of the conductors, limiting the change in electrical resistance to less than 20% after 400 000 bending cycles and to less than 1 Ω after 50 wash cycles. Although laminated conductors are more durable and generally outperformed conductors on the printed primer layer, in both cases, the results showed that the sample could be left for 24 h for ‘self-relaxation’ and would also return to the original value, implying that for future wear, either immediate ironing or leaving the garment for a period between uses could effectively ‘fix’ any bending or washing damage.","PeriodicalId":51335,"journal":{"name":"Flexible and Printed Electronics","volume":"14 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141550051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Additively manufactured microstrip patch antennas in flat, curved, and embedded configurations 平面、曲面和嵌入式配置的叠加制造微带贴片天线

IF 3.1 4区工程技术

Flexible and Printed Electronics Pub Date : 2024-06-07 DOI: 10.1088/2058-8585/ad517c

Arvind Gurusekaran, Mukhtar Ahmad, Manuela Ciocca, Michele Pompilio, Annelot Nijkoops, Alejandro Carrasco Pena, Paolo Lugli, Luisa Petti

{"title":"Additively manufactured microstrip patch antennas in flat, curved, and embedded configurations","authors":"Arvind Gurusekaran, Mukhtar Ahmad, Manuela Ciocca, Michele Pompilio, Annelot Nijkoops, Alejandro Carrasco Pena, Paolo Lugli, Luisa Petti","doi":"10.1088/2058-8585/ad517c","DOIUrl":"https://doi.org/10.1088/2058-8585/ad517c","url":null,"abstract":"Microstrip patch antennas (MPAs) are compact and easy-to-fabricate antennas, widely used in long-distance communications. MPAs are commonly fabricated using subtractive methods such as photolithographic etching of metals previously deposited using sputtering or evaporation. Despite being an established technique, subtractive manufacturing requires various process steps and generates material waste. Additive manufacturing (AM) techniques instead allow optimal use of material, besides enabling rapid prototyping. AM methods are thus especially interesting for the fabrication of electronic components such as MPAs. AM methods include both 2D and 3D techniques, which can also be combined to embed components within 3D-printed enclosures, protecting them from hazards and/or developing haptic interfaces. In this work, we exploit the combination of 2D and 3D printing AM techniques to realize three MPA configurations: flat, curved (at 45∘), and embedded. First, the MPAs were designed and simulated at 2.3 GHz with a −16.25 dB <italic toggle=\"yes\">S</italic>\u000011 value. Then, the MPA dielectric substrate was 3D-printed using polylactic acid via fused deposition modeling, while the antenna material (conductive silver ink) was deposited using three different AM methods: screen printing, water transfer, and syringe-based injection. The fabricated MPAs were fully operational between 2.2–2.4 GHz, with the flat MPA having a higher <italic toggle=\"yes\">S</italic>\u000011 peak value compared to the curved and embedded MPAs. Development of such AM MPAs in various configurations demonstrated in this work can enable rapid development of long-range antennas for novel applications in e.g. aerospace and Internet of Things sectors.","PeriodicalId":51335,"journal":{"name":"Flexible and Printed Electronics","volume":"26 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141550050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A vibrating membrane ejector for direct ink writing of printed electronics 用于直接书写印刷电子墨水的振动膜喷射器

IF 3.1 4区工程技术

Flexible and Printed Electronics Pub Date : 2024-05-15 DOI: 10.1088/2058-8585/ad43f7

Shangjian Liu, Shuohao Hu, Song Lin, Jiakang Wu, Feng Shao, Junge Liang, Xi Wan and Xiaofeng Gu

{"title":"A vibrating membrane ejector for direct ink writing of printed electronics","authors":"Shangjian Liu, Shuohao Hu, Song Lin, Jiakang Wu, Feng Shao, Junge Liang, Xi Wan and Xiaofeng Gu","doi":"10.1088/2058-8585/ad43f7","DOIUrl":"https://doi.org/10.1088/2058-8585/ad43f7","url":null,"abstract":"Direct ink writing (DIW) represents a technical branch of additive manufacturing technology, particularly suitable for prototyping or small-batch printing production of printed electronic components. However, the existing print heads required for near or sub-100 μm line width are quite sophisticated, limiting the accessibility and application of the DIW method. This paper reports the use of the vibrating membrane ejector (VME) as a new option for the print head of DIW. The structure of the VME-based print head was specially designed for this purpose. Finite element modeling and analysis of the VME’s vibration characteristics were performed to provide insights into the ejection conditions and behaviors. The factors influencing the size of printed structures were identified and analyzed through the printing of a metal–organic complex silver (Ag) ink. After optimizing several operational parameters to limit the spreading effects and suppress the satellite droplets, the DIW printed line width has reached about 100 μm. The effectiveness of the VME-based print head was further demonstrated through the DIW fabrication of interdigitated electrodes and microstrip transmission lines. This highlights the versatility of the VME-based print head as a practical tool for device prototyping and ink development in the field of printed electronics.","PeriodicalId":51335,"journal":{"name":"Flexible and Printed Electronics","volume":"209 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141062512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Inkjet-printed heater on flexible substrates for low voltage applications 用于低电压应用的柔性基板上的喷墨打印加热器

IF 3.1 4区工程技术

Flexible and Printed Electronics Pub Date : 2024-05-14 DOI: 10.1088/2058-8585/ad43f8

Muhammad Atif Khan, Danial Khan and Yehia Massoud

{"title":"Inkjet-printed heater on flexible substrates for low voltage applications","authors":"Muhammad Atif Khan, Danial Khan and Yehia Massoud","doi":"10.1088/2058-8585/ad43f8","DOIUrl":"https://doi.org/10.1088/2058-8585/ad43f8","url":null,"abstract":"Flexible heaters (FHs) have applications ranging from defoggers to flexural warmers, food processors, and thermotherapy. Printed FHs are particularly of interest as they offer unique advantages like high resolution, customization, low cost, and ease of fabrication. Here, we report printed FHs on polyethylene terephthalate substrate. The heater design is optimized to operate on a low voltage of five volts and yield high temperatures with a uniform temperature distribution across the surface. The heater has a fast response time of 15 s to reach its maximum temperature and does not show any degradation in performance after three months of operation. The heater maintains its temperature after continuous use for two hours and exhibits a minimum change in temperature upon bending. We have also developed and tested designs for zone heaters and nano heaters, where zone heater is suited for applications requiring heating in specified locations on a surface only. Whereas nano heater has an area of 1 mm2 and can produce high temperatures in this small area. Finally, we developed similar printed heaters on paper and polyimide (PI) substrates as well. Paper-based heater can achieve a temperature of 210 °C and can be used in disposable applications due to its low cost, whereas PI heater can achieve a temperature of 380 °C and is suitable for attaining high temperatures. These results manifest the use of FHs for various practical applications.","PeriodicalId":51335,"journal":{"name":"Flexible and Printed Electronics","volume":"23 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141062447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing the quality factor of aerosol jet printed RF spiral inductors through gold electroplating 通过电镀金提高气溶胶喷射印刷射频螺旋电感器的品质因数

IF 3.1 4区工程技术

Flexible and Printed Electronics Pub Date : 2024-05-09 DOI: 10.1088/2058-8585/ad4610

Md Abu Mosa, Huijune Kang, Jeong Yeop Jo, Jinho Bang, Dal Ahn, Youna Jang, Kye-Si Kwon

{"title":"Enhancing the quality factor of aerosol jet printed RF spiral inductors through gold electroplating","authors":"Md Abu Mosa, Huijune Kang, Jeong Yeop Jo, Jinho Bang, Dal Ahn, Youna Jang, Kye-Si Kwon","doi":"10.1088/2058-8585/ad4610","DOIUrl":"https://doi.org/10.1088/2058-8585/ad4610","url":null,"abstract":"Aerosol jet printing (AJP) outperforms inkjet printing by significantly reducing printed line width, effectively addressing issues such as bulging and surface irregularities. This technology allows for line widths as narrow as 10–100 <italic toggle=\"yes\">μ</italic>m with high aspect ratios, making it well-suited for radio frequency (RF) applications. Consequently, AJP emerges as a valuable tool for direct printing in RF applications. Among conductive inks, silver nanoparticle (Ag-NP) ink is preferred for its straightforward direct printing process and lower sintering temperature requirements. However, the conductivity of printed Ag NP traces falls markedly below that of bulk silver due to significant porosity, limiting its use in RF applications where a high-quality factor is essential. The quality factor of an inductor, indicative of its efficiency in energy storage and release, inversely correlates with its resistance. Our research combines AJP with selective electroplating to reduce the resistance of printed traces, thereby enhancing the inductor’s quality factor for RF applications. We fabricated spiral inductors on alumina substrates using silver NP ink and subsequently applied selective gold electroplating to these traces. This approach led to a significant increase in the inductors’ quality factor, improving it by a factor of 3–5 in the RF frequency range of 100–700 MHz.","PeriodicalId":51335,"journal":{"name":"Flexible and Printed Electronics","volume":"45 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140937280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent progress of flexible pressure sensors: from principle, structure to application characteristics 柔性压力传感器的最新进展：从原理、结构到应用特点

IF 3.1 4区工程技术

Flexible and Printed Electronics Pub Date : 2024-04-15 DOI: 10.1088/2058-8585/ad396e

Shimin Liu, Guilei Liu, Jianlong Qiu, Lei Yang, Yanjie Guo

引用次数: 0

Materials aspects of PEDOT:PSS for neuromorphic organic electrochemical transistors 用于神经形态有机电化学晶体管的 PEDOT:PSS 的材料特性

IF 3.1 4区工程技术

Flexible and Printed Electronics Pub Date : 2024-03-18 DOI: 10.1088/2058-8585/ad2daf

Shunsuke Yamamoto

引用次数: 0

Flexible and twistable free-standing PDMS-magnetic-nanoparticle-based soft magnetic films with robust magnetic properties 基于 PDMS-磁性纳米粒子的柔性可扭曲独立软磁薄膜，具有强大的磁性能

IF 3.1 4区工程技术

Flexible and Printed Electronics Pub Date : 2024-03-15 DOI: 10.1088/2058-8585/ad2dae

Swarup Kumar Subudhi, Beihan Zhao, Xinjun Wang, John Ting, Ichiro Takeuchi, Abhijit Dasgupta, Siddhartha Das

{"title":"Flexible and twistable free-standing PDMS-magnetic-nanoparticle-based soft magnetic films with robust magnetic properties","authors":"Swarup Kumar Subudhi, Beihan Zhao, Xinjun Wang, John Ting, Ichiro Takeuchi, Abhijit Dasgupta, Siddhartha Das","doi":"10.1088/2058-8585/ad2dae","DOIUrl":"https://doi.org/10.1088/2058-8585/ad2dae","url":null,"abstract":"In this paper, we develop multifunctional, physically soft, mechanically compliant, and magnetically responsive PDMS films, with embedded Fe3O4 nanoparticles, that show robust magnetic properties over a significant range of mechanical deformation. First, we establish that the magnetic properties, namely the saturation magnetization (<italic toggle=\"yes\">M</italic>\u0000s), remanent magnetization (<italic toggle=\"yes\">M</italic>\u0000r), and intrinsic coercivity (<italic toggle=\"yes\">H</italic>\u0000ci) of these PDMS films in highly deformed configurations, i.e. in folded, twisted (with different twist angles), and bent (flexed) configurations, show very little degradation compared to those obtained in undeformed configurations. Next, the films were subjected to repetitive cycles of zero-to-max deformation (<italic toggle=\"yes\">R</italic> = 0) and the saturation magnetization of the films was shown to not exhibit any significant degree of progressive degradation as a function of cyclic deformation history. These findings confirm the excellent robustness and cyclic durability of magnetic properties shown by these magnetic and compliant PDMS films and point to their suitability for wearable electronics applications.","PeriodicalId":51335,"journal":{"name":"Flexible and Printed Electronics","volume":"47 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140316802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Aerosol jet printed temperature sensors using an environmentally friendly bilayer dielectric 使用环保型双层电介质的气溶胶喷射打印温度传感器

IF 3.1 4区工程技术

Flexible and Printed Electronics Pub Date : 2024-03-15 DOI: 10.1088/2058-8585/ad2ece

Mathieu N Tousignant, Vanessa Tischler, Kaitlin Wagner, Zheng Sonia Lin, Jaclyn Brusso, Ricardo Izquierdo, Benoît H Lessard

{"title":"Aerosol jet printed temperature sensors using an environmentally friendly bilayer dielectric","authors":"Mathieu N Tousignant, Vanessa Tischler, Kaitlin Wagner, Zheng Sonia Lin, Jaclyn Brusso, Ricardo Izquierdo, Benoît H Lessard","doi":"10.1088/2058-8585/ad2ece","DOIUrl":"https://doi.org/10.1088/2058-8585/ad2ece","url":null,"abstract":"With the rise of the internet of things and applications such as smart packaging, the need for low cost, disposable temperature sensors with minimum environmental impact are critical. In this study, we report fully printed capacitive temperature sensors made from bio-degradable dielectric materials. All layers were aerosol jet printed and the areal capacitance was characterized at several temperatures between room temperature (22 ˚C) and 80 °C. Using a bilayer dielectric structure, a layer of poly (vinyl alcohol) (PVA) was encapsulated with polycaprolactone (PCL) through interfacial crosslinking to protect it against humidity. Various concentrations and layer amounts of PVA were investigated, with the most effective capacitors consisting of a single layer of PVA deposited from a 5.0 mg ml−1 solution followed by a layer of the UV-crosslink-able PCL deposited from 2.0 mg ml−1 solution, achieving a 43 ± 6% increase in areal capacitance at 80 °C when compared to room temperature, measured at a frequency of 501 Hz.","PeriodicalId":51335,"journal":{"name":"Flexible and Printed Electronics","volume":"13 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140312632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0