Article
Materials Science, Multidisciplinary
Ping Ren, Runqiao Song, Yong Zhu, Brendan O'Connor, Jingyan Dong
Summary: The demand for cost-effective fabrication of printed flexible transistors has increased due to the need for flexible interface devices like e-skins, wearables, and medical patches. This study develops electrohydrodynamic printing processes to fabricate all components of polymer-based organic thin film transistors, streamlining the fabrication procedure. The fully EHD-printed OTFTs show good electrical performance and great mechanical flexibility, providing a cost-effective route for flexible electronics.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Materials Science, Multidisciplinary
Tanyaradzwa N. Mangoma, Shunsuke Yamamoto, George G. Malliaras, Ronan Daly
Summary: Organic electrochemical transistors (OECTs) are essential in bioelectronics and printed electronics applications due to their simple structure, ease of tunability, biocompatibility, and suitability for different fabrication routes. This study presents a hybrid direct-write additive manufacturing approach to fabricating OECTs, combining 3D printing of conducting and insulating layers with inkjet printing of semiconducting thin films. The results demonstrate that this manufacturing method can rapidly produce OECTs and neuromorphic devices with good performance.
ADVANCED MATERIALS TECHNOLOGIES
(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
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
Chemistry, Multidisciplinary
Nehru Devabharathi, Jyoti Ranjan Pradhan, Sushree Sangita Priyadarsini, Torsten Brezesinski, Subho Dasgupta
Summary: Oxide semiconductors are increasingly used in modern display industries, with all-oxide CMOS inverters showing high performance narrow-channel n-type TFTs to compensate for the limited carrier mobility of p-type transistors. This advancement has led to unprecedented on-current and transconductance in the TFTs, along with low power dissipation and sharp transfer curves in the inverters.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Ulrika Boda, Ioannis Petsagkourakis, Valerio Beni, Peter Andersson Ersman, Klas Tybrandt
Summary: The challenge of high-performance fully printed stretchable OECTs is addressed by developing fully screen-printed stretchable OECTs. Three stretchable functional screen-printing inks are developed, enabling the fabrication of OECTs. The stretchable OECTs show good characteristics and can withstand high strains. An electrochromic smart pixel is demonstrated by connecting a stretchable OECT to a stretchable electrochromic display. The development of screen-printed stretchable electrochemical devices, particularly OECTs, is believed to pave the way for their use in wearable applications and commercial products.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Multidisciplinary
Liam Gillan, Shujie Li, Jouko Lahtinen, Chih-Hung Chang, Ari Alastalo, Jaakko Leppaniemi
Summary: Additive solution process patterning, such as inkjet printing, is used to fabricate thin-film transistors with high mobility. The study explores the impact of annealing temperature on capacitance stability and highlights the importance of low-frequency capacitance characterization for solution-processed dielectrics.
ADVANCED MATERIALS INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Ilaria Fratelli, Laura Basirico, Andrea Ciavatti, Zachary A. Lamport, John E. Anthony, Ioannis Kymissis, Beatrice Fraboni
Summary: Organic semiconductors are promising materials for X-ray detectors due to their mechanical flexibility and large coverage. The detection efficiency can be enhanced by considering the photoconductive gain effect. This study demonstrates a flexible arrayed thin-film X-ray detector with record X-ray sensitivities using controlled solution deposition and crystallization processes.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Engineering, Electrical & Electronic
Won-Tae Park, William S. Wong
Summary: A method of controlling the carrier transport characteristics of inkjet-printed organic field-effect transistors (OFETs) by creating concentration gradients within the printed liquid volume was developed. The film formation and alignment of the printed transistor was influenced by the precise manipulation of the jetted droplets. This approach resulted in an enhancement of the field-effect mobility of the printed transistors.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Francesca Scuratti, Jorge Mario Salazar-Rios, Alessandro Luzio, Sebastian Kowalski, Sybille Allard, Stefan Jung, Ullrich Scherf, Maria Antonietta Loi, Mario Caironi
Summary: When a higher proportion of nanotubes with smaller bandgaps are efficiently connected, a sparse network allows for efficient charge percolation for band-like transport, achieving a charge mobility as high as 20.2 cm(2) V-1 s(-1). However, if charges are forced to populate higher bandgap nanotubes and/or the wrapping polymer by a less efficient morphology, thermally activated transport occurs and mobility decreases.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Mitta Divya, Jyoti Ranjan Pradhan, Sushree Sangita Priyadarsini, Subho Dasgupta
Summary: This study presents a method for low-temperature fabrication of oxide electronics using indium oxide nanoparticle ink and conductive silver nanoink on flexible PET substrates. The resulting printed thin-film transistors and inverters exhibit excellent performance and high tolerance to strain and atmospheric exposure.
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)
Article
Chemistry, Multidisciplinary
Miquel Moras, Carme Martinez-Domingo, Roger Escude, Cristian Herrojo, Ferran Paredes, Lluis Teres, Ferran Martin, Eloi Ramon
Summary: This paper presents an organic, fully recyclable and eco-friendly 20-bit inkjet-printed chipless RFID tag, which operates in the near field and is implemented using chains of resonant elements. The tag is read by displacing it over a resonator-loaded transmission line and each resonant element is interrogated by a harmonic signal tuned to the resonance frequency.
APPLIED SCIENCES-BASEL
(2021)
Article
Chemistry, Physical
Sandeep K. Mondal, Ananya Biswas, Jyoti R. Pradhan, Subho Dasgupta
Summary: The study introduces fully printed and electrolyte-gated narrow-channel MoS2 field-effect transistors in two-dimensional semiconductor electronics, which overcomes transport limitations by printing an additional metal layer onto the 2D-TMD nanosheet channel and achieves predominant intraflake transport. Additionally, a channel-capacitance-modulation induced subthermionic transport with a subthreshold slope value as low as 7.5 mV dec(-1) is recorded in the study.
Article
Materials Science, Multidisciplinary
Paria Naderi, Gerd Grau
Summary: Improving the application of hydrophobic fluoropolymers in printed electronic devices through plasma treatment can enhance transistor performance. Utilizing post-annealing can reverse the effects of plasma treatment and optimize the interface between Teflon fluoropolymer gate dielectric and organic semiconductors.
ORGANIC ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
Joao C. Barbosa, Daniela M. Correia, Manuel Salado, Renato Goncalves, Stanislav Ferdov, Veronica de Zea Bermudez, Carlos M. Costa, Senentxu Lanceros-Mendez
Summary: This study developed a three-component solid polymer electrolyte with good performance. It used poly(vinylidene fluoride-co-hexafluoropropylene) as a binder, 1-butyl-3-methylimidazolium thiocyanate ionic liquid as an ionic conductive component, and different zeolite structures to improve the ionic conductivity and electrochemical stability.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Chemistry, Analytical
Ivo Colmiais, Vitor Silva, Jerome Borme, Pedro Alpuim, Paulo M. Mendes
Summary: Graphene has unique properties that are ideal for radiofrequency applications, but its characterization presents challenges due to its two-dimensional nature. This study evaluates the Thru-Reflect-Line calibration as a solution for extracting graphene's electrical characteristics, and identifies the necessary requirements for the calibration structures. The inclusion of thick metallic contacts, a low-loss substrate, and a short and thin contact is crucial for accurately characterizing graphene. Additionally, a backgate must be included to account for the dependence of graphene's properties on the applied polarization voltage.
Article
Chemistry, Multidisciplinary
Agnes Purwidyantri, Sarah Azinheiro, Aitor Garcia Roldan, Tereza Jaegerova, Adriana Vilaca, Rofer Machado, M. Fatima Cerqueria, Jerome Borme, Telma Domingues, Marco Martins, Pedro Alpuim, Marta Prado
Summary: Identifying grape varieties in wine and related products using DNA analysis is challenging due to their complexity and low DNA content. This study presents an integrated portable biosensor based on a monolayer graphene field-effect transistor array, which can distinguish closely related grapevine varieties and detect single-nucleotide polymorphisms. The biosensor operates at ultralow DNA concentrations with a high specificity and attomolar detection limit. It offers a promising way for decentralized analytical tools to track wine authenticity and contribute to the digitalization of the agro-food industry.
Article
Physics, Applied
Kaiyuan Chen, Amaia Zarandona Rodriguez, Senentxu Lanceros-Mendez, Xiuyun Lei, Liang Fang, Hongfang Zhang, Shuyu Gao, Laijun Liu, Qi Zhang
Summary: 0.6Bi(Mg1/2Ti1/2)O-3-0.4Ba(0.8)Ca(0.2)(Nb0.125Ti0.875)O-3 ceramics with pseudo-cubic structure and re-entrant dipole glass behavior were studied. They exhibited excellent dielectric-temperature stability, with small variations of dielectric permittivity and loss tangent in a wide temperature range. Three dielectric anomalies were observed, and the low-temperature behavior was described using the Vogel-Fulcher law and new glass model. The results provide insights into the defects behavior and modification of re-entrant relaxor behavior.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Chemistry, Physical
Luis Amaro Martins, Laura Teruel Biosca, Jose Antonio Gomez-Tejedor, J. P. Serra, Daniela M. Correia, Carlos M. Costa, Senentxu Lanceros-Mendez, Jose Luis Gomez Ribelles, Isabel Tort-Ausina
Summary: The influence of propylene carbonate (PC), an organic solvent, on microporous membranes based on PLLA and P-VDF-HFP has been studied. The swelling ratio, microstructure, and crystalline phase of the membranes were affected by the uptake of the organic solvent. The organic solvent also modified the crystal size and partially penetrated into the amorphous phase of the polymer, leading to a mechanical plasticizing effect. The interaction between the organic solvent and the membrane plays a crucial role in tailoring the membrane properties and affecting lithium-ion battery performance.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Analytical
Rabiaa Elkarous, Afrah Bardaoui, Jerome Borme, Nabil Sghaier, Pedro Alpuim, Diogo M. F. Santos, Radhouane Chtourou
Summary: This study proposes a high-performance asymmetric gold/graphene/platinum photodetector that operates without bias. It incorporates interdigitated metallic contacts to enhance the separation and collection of photocarriers. By utilizing chemical vapor deposition and electron-beam lithography, three devices with different dimensions were fabricated and evaluated for their photoresponsivities at different wavelengths. The 100 μm device exhibited the highest photoresponsivity of 358 A/W at 400 nm illumination. These findings demonstrate the potential of the proposed design to increase the active area, improve light absorption, and achieve efficient separation and collection of photogenerated carriers, making it highly relevant for optoelectronic applications.
Article
Engineering, Electrical & Electronic
Ander Garcia Diez, Nelson Pereira, Carmen R. Tubio, Jose Luis Vilas-Vilela, Carlos M. Costa, Senentxu Lanceros-Mendez
Summary: A multifunctional polymer-based composite consisting of poly(vinylidene fluoride) (PVDF) as the polymer matrix, cobalt ferrite (CFO) and multiwalled carbon nanotubes (MWCNTs) as fillers, has been designed to combine magnetic and electrical responses. The composite shows independent morphology, polymer phase, and thermal and magnetic properties, but strong dependence on the MWCNT content for mechanical and electrical properties. The composite exhibits excellent response and reproducibility as a magnetic actuator with self-sensing strain characteristics.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Green & Sustainable Science & Technology
T. Rodrigues-Marinho, N. Perinka, P. Costa, S. Lanceros-Mendez
Summary: Polymer-based flexible energy harvesting systems utilize physical phenomena such as piezo-, pyro-, thermo-, and triboelectric effects to provide self-powered nano-generator devices for applications that require energy in remote or inaccessible places. Tailored properties of the materials, combined with advanced manufacturing technologies, improve the integration of energy harvesters into devices and make them more attractive for sensor applications in the digitalization of society and economy. The selection and manipulation of polymers, printing techniques, and device geometry are critical for maximizing the output power of flexible devices.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Nanoscience & Nanotechnology
Ricardo Brito-Pereira, Andre Silva Macedo, Clarisse Ribeiro, Vanessa F. Cardoso, Senentxu Lanceros-Mendez
Summary: This work reports on the development of low-cost microfluidic substrates for point-of-care (POC) systems suitable for analytical assays. An innovative greener process is developed to extract cellulose from various plants, and corresponding paper substrates are obtained as platforms. The substrates are evaluated using morphological and physicochemical analyses, and their suitability for liquid assays and overall viability as low-cost, sustainable microfluidic substrates for POC applications are confirmed.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Joao C. Barbosa, Daniela M. Correia, Arkaitz Fidalgo-Marijuan, Renato Goncalves, Stanislav Ferdov, Veronica de Zea Bermudez, Senentxu Lanceros-Mendez, Carlos M. Costa
Summary: Renewable energy sources require efficient energy storage systems, and lithium-ion batteries are a standout option. However, there is still room for improvement in terms of safety and cycling stability. By implementing solid polymer electrolytes (SPEs) instead of the commonly used separator/electrolyte system, these issues can be addressed. This study focuses on the development of ternary SPEs based on specific host polymers, fillers, and ionic liquids to enhance the performance of lithium-ion batteries in terms of conductivity, stability, and cyclability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Joao Carlos Barbosa, Daniela Maria Correia, Paulo Nunes, Mariana Fernandes, Arkaitz Fidalgo-Marijuan, Renato Goncalves, Stanislav Ferdov, Veronica de Zea Bermudez, Senentxu Lanceros-Mendez, Carlos Miguel Costa
Summary: In this study, three-component solid polymer electrolytes (SPEs) based on poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) as host polymer, clinoptilolite zeolite, and different ionic liquids (ILs) were produced and characterized. The influence of IL anion and cation on various properties of the SPEs and battery cycling performance were studied. The results showed that [SCN]- anion was the most suitable for SPE applications and the ionic conductivity depended on the IL type. The best battery performance was observed for the SPE based on [BMIM][SCN].
JOURNAL OF POWER SOURCES
(2023)
Article
Polymer Science
Ruben Teijido, Leire Ruiz-Rubio, Senentxu Lanceros-Mendez, Qi Zhang, Jose Luis Vilas-Vilela
Summary: Bio-based epoxy thermoset resins were developed from epoxidized soybean oil (ESO) cured with tannic acid (TA). These resins exhibited optimal curing properties, high thermal stability, and excellent barrier properties, making them suitable for specific applications such as waterproof and anti-corrosion coatings.
Article
Chemistry, Multidisciplinary
Ainara Valverde, Roberto de Fernandez-de Luis, Hugo Salazar, Bruna F. Goncalves, Stephen King, Laszlo Almasy, Manfred Kriechbaum, Jose M. Laza, Jose L. Vilas-Vilela, Pedro M. Martins, Senentxu Lanceros-Mendez, Jose M. Porro, Viktor I. Petrenko
Summary: In this study, the micro to nanoscale structure of PVDF-HFP@MOF membranes and their adsorption performance for Cr-VI are investigated. The different degrees of full encapsulation based on the PVDF-HFP processing and structuration from the macro to nanometer scale are observed. Furthermore, the functionalization of MOF nanoparticles with cysteine is studied to enhance their adsorption capacity toward Hg-II.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Liliana C. Fernandes, Daniela M. Correia, Mohammad Tariq, Jose M. S. S. Esperanca, Pedro Martins, Senentxu Lanceros-Mendez
Summary: With the increase in demand for miniaturized multifunctional devices, especially sensors and actuators, the development of smart materials with magnetoelectric (ME) properties has become important. The study demonstrates the suitability of magnetoelectric responsive materials for magnetic sensing and actuation devices. The materials show voltage responses in the mV range, making them suitable for high sensitivity magnetic field sensors.
Article
Nanoscience & Nanotechnology
Esraa Samy Abu Serea, Inaki Orue, Jose Angel Garcia, Senentxu Lanceros-Mendez, Javier Reguera
Summary: Nanohyperthermia therapies are a promising alternative for treating cancer tumors, and multifunctional nanosystems offer advances in this field. Optimizing the size and shape of nanomaterials improves the efficiency of hyperthermia therapies.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Jinfei Dai, Chenjing Zhao, Jie Xu, Hossein Roshan, Hua Dong, Francesco Di Stasio, Fang Yuan, Bo Jiao, Zhaoxin Wu
Summary: In this study, the performance of perovskite nanocrystal light emitting diodes (PNC-LEDs) was enhanced through rational device structure design and the application of high-performance perovskite nanocrystal emitting layers.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Jia-Hua Yeh, Suhendro Purbo Prakoso, Leon Lukhas Santoso, Shi-Ju Chen, Bryan Chiang, Ju-Chieh Cheng, Ru-Ning Zhang, Yu-Cheng Chiu
Summary: This study demonstrates the application of a renewable material called dextrin-SMS in the production of electret filters and transistor memory. Dextrin-SMS material can maintain prolonged electrostatic charges and has a relatively wide memory window, making it suitable for the production of biodegradable face masks and green electronics.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Ahmad Telfah, Qais M. Al-Bataineh, Ahmad A. Ahmad, Rund Abu-Zurayk, Carlos J. Tavares, Johannes Etzkorn, Farzad Foadian
Summary: Polyacrylic acid complexed with polyaniline (PAA/PANI) composite materials have the potential to form organic mixed ion-electron conductive (OMIEC) films, which can be used in optoelectronic and energy storage applications. The composite films are formed through an acid-base reaction, resulting in strong electrostatic interactions and intermolecular hydrogen bonds between PANI and PAA. The separation of PANI-rich domains from PAA-rich matrix in the composite films is observed. The electrical conductivity of the composite films is higher when the content of PANI is 33 wt%, due to the high ionic-electronic coupling at the interface between phase-separated regions.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Min-Chih Hou, Dian Luo, Yu-Ting Huang, Shun-Wei Liu, Chin-Wei Lu, Chih-Hao Chang, Hai-Ching Su
Summary: Light-emitting electrochemical cells (LECs) have great potential for novel emission applications, but their relatively low device efficiency hinders their competitiveness with other emission technologies. A study finds that increasing the concentration of small TiO2 nano-particles in the diffuser film can enhance light extraction and improve the device efficiency of LECs.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Qiaoli Niu, Yao Xu, Jun Yang, Wei Hua, Baoxiang Chai, Zequan Zhang, Yuhui Ma, Wenjin Zeng, Ana Flavia Nogueira, Ruidong Xia
Summary: By introducing CPB as a defect passivation agent in the perovskite precursor solution, the optoelectronic properties of perovskite films can be significantly improved and non-radiative carrier recombination can be effectively suppressed. CPB-modified perovskite solar cells exhibit lower trap-state density and stronger carrier migration capability, leading to enhanced power conversion efficiency and stability.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Hulya Ozturk Dogan, Fatma Yildirim, Zeynep Orhan, Ali Ben Ahmed, Mostefa Benhaliliba, Sakir Aydogan
Summary: In this study, efficient self-powered visible and UV photodetectors based on hybrid organic-inorganic materials were demonstrated. The photodetectors showed excellent UV detecting capability and good photoresponsivity.
ORGANIC ELECTRONICS
(2024)