Article
Chemistry, Multidisciplinary
Magdalena Kralj, Sara Krivacic, Irena Ivanisevic, Marko Zubak, Antonio Supina, Marijan Marcius, Ivan Halasz, Petar Kassal
Summary: In this study, a scalable mechanochemical method for mass-producing graphene electronics was presented using melamine to exfoliate graphite in a planetary ball mill. The resulting melamine-intercalated graphene nanosheets (M-GNS) were used to formulate an inkjet-printable conductive ink and post-processing techniques were used to reduce electrical resistance. A simple flexible printed circuit consisting of a battery-powered LED was successfully realized. This study offers an environmentally friendly alternative for mass-producing graphene-based printed flexible electronics.
Article
Chemistry, Multidisciplinary
Subimal Majee, Wei Zhao, Abhilash Sugunan, Thomas Gillgren, Johan A. Larsson, Robert Brooke, Niklas Nordgren, Zhi-Bin Zhang, Shi-Li Zhang, David Nilsson, Anwar Ahniyaz
Summary: A highly concentrated starch-graphene ink was produced using a general formulation engineering method in aqueous media, and validated for post-processing with photonic annealing. The role of starch as a dispersing agent for graphene and the enhancement of electrical properties of printed graphene patterns with photonic pulse energy were demonstrated in the experimental results, leading to a high electrical conductivity. This eco-friendly and cost-efficient approach has technical potential for scalable production and integration of conductive graphene inks in printed and flexible electronics.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Alessandro Silvestri, Alejandro Criado, Fabrizio Poletti, Faxing Wang, Pablo Fanjul-Bolado, Maria B. Gonzalez-Garcia, Clara Garcia-Astrain, Luis M. Liz-Marzan, Xinliang Feng, Chiara Zanardi, Maurizio Prato
Summary: With the advancement of flexible electronics, conductive inks combined with low-cost printing techniques are replacing traditional solid-state technology. Graphene, with its excellent conductivity and zero bandgap, is an ideal candidate for producing such inks. Chemically modifying graphene with active molecules opens up possibilities in the field of responsive conductive inks.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Roman Buchheit, Bjoern Kuttich, Lola Gonzalez-Garcia, Tobias Kraus
Summary: A new type of hybrid core-shell nanoparticle dielectric suitable for inkjet printing is introduced, with gold cores covalently grafted with polystyrene to create dielectric layers with metal volume fractions of 5 to 21%. The materials show high dielectric constants without the risk of breakdown at high metal fractions, making them ideal for capacitor applications.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Yidenekachew J. Donie, Stefan Schlisske, Radwanul H. Siddique, Adrian Mertens, Vinayak Narasimhan, Fabian Schackmar, Manuel Pietsch, Ihteaz M. Hossain, Gerardo Hernandez-Sosa, Uli Lemmer, Guillaume Gomard
Summary: The spontaneous phase separation of polymers is a thermodynamic process that can occur in both biological and synthetic materials. Current wet process methods limit the design possibilities for phase-separated nanostructures, so a versatile inkjet printing deposition method has been introduced to address this issue.
Article
Chemistry, Analytical
Dimitris Barmpakos, Vassiliki Belessi, Nikolaos Xanthopoulos, Christoforos A. Krontiras, Grigoris Kaltsas
Summary: This study evaluates the thermoelectrical response of two graphitic materials and demonstrates their potential as microheaters. Utilizing inkjet printing technology allows for efficient production of microheaters with high repeatability and endurance in heat cycles. This is significant for achieving cost-effective production and minimizing material waste.
Article
Chemistry, Multidisciplinary
Matthew J. Griffith, Nathan A. Cooling, Daniel C. Elkington, Michael Wasson, Xiaojing Zhou, Warwick J. Belcher, Paul C. Dastoor
Summary: This study presents a highly sensitive pressure detector developed through inkjet printing of electroactive organic semiconducting materials, capable of rapidly converting shock wave inputs into amplified electronic signals. By optimizing the transistor response through variation of materials, solvents, and printing speeds, the printed device can quickly switch from non-conductive to conductive states at low voltages. The printed sensor operates without the need for gate voltage bias, offering a simple and low-cost solution for detecting stimuli in highly energetic systems.
Article
Nanoscience & Nanotechnology
Brian Derby, Jinxin Yang, Pei He
Summary: Continuous conducting lines with a width of 5-20 μm have been successfully printed using Ag nanoparticle ink and drop-on-demand (DOD) electrohydrodynamic (EHD) inkjet printing. The stability of the printed lines is affected by the contact angle and the spacing between drops. The upper and lower bounds of the drop spacing for stable line formation are consistent with existing models. After printing and sintering, the conductivity of the printed tracks is about 15%-20% of bulk Ag, indicating a porosity of about 60%.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Sebastjan Glinsek, Longfei Song, Veronika Kovacova, Mohamed A. Mahjoub, Nicolas Godard, Stephanie Girod, Jean-Luc Biagi, Robert Quintana, Thomas Schleeh, Matthieu Guedra, Matthieu Rupin, Emmanuel Defay
Summary: The effectiveness of inkjet printing deposition of lead zirconate titanate thin films for the fabrication of haptic devices is demonstrated in this study. The use of a special solvent enables the preparation of effective inkjet printing inks, and functional thin-film structures are fabricated on top of the printed lead zirconate titanate. The results show that the devices produced using this method exhibit good electromechanical properties.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Materials Science, Multidisciplinary
Xiangyu Huang, Jie Chen, Hongjie Xie, Feixiang Zhao, Suna Fan, Yaopeng Zhang
Summary: This study presents inkjet-printed, flexible, and patterned electrochromic devices (ECDs) based on two-dimensional polyaniline (PANI) sheets. The fabricated PANI electrode shows high optical contrast, good coloration efficiency, and short coloration/bleaching time, while maintaining pseudocapacitance and mechanical flexibility. Additionally, the 2D lamellar PANI ink developed in this study allows for the creation of various designed patterns for electrochemically controlled, addressable electrochromic displays.
SCIENCE CHINA-MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Jingjie Du, Botao Zhang, Meng Jiang, Qihao Zhang, Keyi Zhang, Yan Liu, Lianjun Wang, Wan Jiang
Summary: The development of flexible thermoelectric devices presents exciting opportunities for wearable applications in various fields. However, scaling up nanotechnology-enabled thermoelectric materials and reducing manufacturing costs remain challenging. This study introduces an inkjet printing method to fabricate high-performance flexible thermoelectric devices. The use of a templated-directed chemical transformation process allows the synthesis of metal chalcogenide nanowires, which are turned into printable inks. The resulting inkjet-printed flexible films and devices show significantly improved performance compared to state-of-the-art inkjet-printed thermoelectrics, indicating the potential of this printing platform for scalable manufacturing of next-generation flexible thermoelectric devices.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Kyung Tae Park, Young Shik Cho, Inho Jeong, Doojoon Jang, Hyeon Cho, Yoohyeon Choi, Taemin Lee, Youngpyo Ko, Jaeyoo Choi, Soo Young Hong, Min-Wook Oh, Seungjun Chung, Chong Rae Park, Heesuk Kim
Summary: Flexible thermoelectric materials are essential for self-powered wearable electronics, but their practical applications are hindered by low performance. This study proposes a highly aligned carbon-nanotube yarns (CNTYs) with selective doping via inkjet printing, achieving ultrahigh power factors for p- and n-type thermoelectric materials. The highly integrated, flexible CNTY-based thermoelectric generator (TEG) can generate unprecedented milliwatt-scale power using body heat alone, surpassing previously reported flexible material-based TEGs.
ADVANCED ENERGY MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Ping Ren, Jingyan Dong
Summary: The study focuses on the development of foldable sustainable electronics using electrohydrodynamic (EHD) printing to fabricate PEDOT:PSS/graphene composite circuits on polyvinyl alcohol (PVA) films. The printed electronics demonstrate good foldability and mechanical stability, and maintain stable electronic response even after multiple folding and unfolding cycles. The use of printed PEDOT:PSS/graphene circuits as resistive temperature sensors for body temperature and respiration monitoring is also presented, highlighting their potential for transient electronics and biodegradability.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Materials Science, Multidisciplinary
Veasna Soum, Viktor Lehmann, Huckjin Lee, Sovann Khan, Oh-Sun Kwon, Kwanwoo Shin
Summary: In this study, a novel polymeric substrate optimized for flexible electronic devices was fabricated using thin-film processing and phase inversion of polyethersulfone (PES). This substrate consists of two layers of pores, with nano-sized pores in the upper layer to filter nanoparticles in conductive ink and micro-scale pores in the lower layer to absorb and drain ink solvent. These two porous structures lead to higher conductivity and high-resolution printed patterns. The PES substrate can also undergo high-temperature curing of metal nanoparticles, enabling low resistance high-resolution pattern printing.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2023)
Review
Chemistry, Multidisciplinary
Justin Lemarchand, Nathalie Bridonneau, Nicolas Battaglini, Florent Carn, Giorgio Mattana, Benoit Piro, Samia Zrig, Vincent Noel
Summary: Driven by the development of new functional inks, inkjet-printed electronics has achieved significant milestones in various high-tech applications. However, the current spatial resolution limitation of inkjet printing hinders miniaturization and controlled organization at the nanometer scale. This review discusses the physico-chemical concepts, equipment constraints, and potential solutions for improving the resolution of inkjet printing.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
