Article
Materials Science, Multidisciplinary
Mohammad Nazeri, Milad Ghalamboran, Gerd Grau
Summary: This article demonstrates the use of laser-induced graphene (LIG) electrodes in the fabrication of organic electrochemical transistors (OECTs). The conversion of polyimide (PI) substrate into LIG allows for the quick and low-cost creation of source, drain, and gate electrodes. The LIG electrodes with low contact resistance and good electrical stability significantly contribute to the device performance.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Nanoscience & Nanotechnology
Kai Wang, Huaqiang He, Baibing Wei, Tian C. Zhang, Haiqing Chang, Yingqi Li, Xiaobao Tian, Yubo Fan, Ying Liang, Shaojun Yuan
Summary: This study reports the successful growth of a hybrid zeolitic imidazolate framework-8 and zinc oxide nanorod material on a poly(vinylidene fluoride) membrane for rapid filtration of emulsified oily wastewater, exhibiting superior mechanical strength, reversible under-liquid dual superlyophobicity, photo-catalytic self-cleaning property, and effective alternate separation capacity towards both oil-in-water and water-in-oil emulsions with ultrahigh fluxes and efficiencies (>99%).
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Na Lin, Hanning Chen, Wentao Wang, Longsheng Lu
Summary: This study demonstrates the successful synthesis of LIG/MoO2-CC electrode with high electrochemical performance through laser-induced in-situ method, providing excellent energy storage capabilities for wearable electronic devices. The experimental results show that the MSCs assembled with these electrodes have high areal capacitance and energy density, making them among the best performing LIG-based MSCs.
ADVANCED MATERIALS TECHNOLOGIES
(2021)
Article
Chemistry, Physical
L. Wu, H. Fang, W. Wu, H. Ma, C. Zheng, H. Wang
Summary: The study introduces a multifunctional photoelectrochemical (PEC) device capable of photodetection, electrochromism, and light-assisted coloration for UV radiation management. The device demonstrates high photoresponsivity, coloration efficiency, and UV blocking, providing a new approach for designing and fabricating smart electronics.
MATERIALS TODAY ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Huanyu Zhou, Shin Jung Han, Amit Kumar Harit, Dong Hyun Kim, Dae Yoon Kim, Yong Seok Choi, Hyeokjun Kwon, Kwan-Nyeong Kim, Gyeong-Tak Go, Hyung Joong Yun, Byung Hee Hong, Min Chul Suh, Seung Yoon Ryu, Han Young Woo, Tae-Woo Lee
Summary: This study demonstrates highly efficient intrinsically stretchable organic light-emitting diodes (ISOLEDs) using graphene-based 2D-contact stretchable electrodes. The incorporation of a graphene layer on top of embedded metallic nanowires modifies the work function, promotes charge spreading, and impedes inward diffusion of oxygen and moisture, leading to improved efficiencies of ISOLEDs. A newly designed conjugated polyelectrolyte is used to achieve the lowest reported work function value among ISOLEDs. Pressure-controlled lamination is employed to produce highly efficient fluorescent ISOLEDs. A large-size ISOLED with convex stretching is also demonstrated.
ADVANCED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Shalik Ram Joshi, Sumit Kumar, Sunghwan Kim
Summary: The ongoing research on printed and flexible electronics is mainly focused on conductive 3D print patterning. However, the nonhomogeneous distribution of conductive elements in a polymer matrix and their tendency to shrink lead to low printing accuracies and poor mechanical and electrical properties. This study introduces a conductive ink for 3D printing by reinforcing poly(vinyl butyral-co-vinyl alcohol-co-vinyl acetate) with microwave-exfoliated graphene, which significantly enhances the electrical conductivity, tensile strength, and printing accuracy of the patterns. The printed conductive patterns show high flexibility suitable for wearable electronics and enable multifunctional electronic operations such as photoinduced heating, temperature sensing, and motion sensing, potentially paving the way for smart wearable electronics in healthcare and soft robotics.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Engineering, Biomedical
Braden M. Li, Brandon L. Reese, Katherine Ingram, Mary E. Huddleston, Meghan Jenkins, Allison Zaets, Matthew Reuter, Matthew W. Grogg, M. Tyler Nelson, Ying Zhou, Beomjun Ju, Busra Sennik, Zachary J. Farrell, Jesse S. Jur, Christopher E. Tabor
Summary: This study presents a method of spray coating liquid metal nanoparticle systems onto textiles to create flexible and robust electrodes. The resulting electrodes, known as TILEs, exhibit comparable sensing capabilities and skin-electrode impedance to commercial wet electrodes, while also providing improved wearability. The biocompatibility of TILEs in a skin environment is demonstrated, and they outperform previously reported textile-based dry electrodes in terms of sensing performance.
ADVANCED HEALTHCARE MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Livio Gamba, Santiago Diaz-Arauzo, Mark C. Hersam, Ethan B. Secor
Summary: Aerosol jet printing is a promising technology for additive manufacturing of functional microstructures. This study demonstrates a strategy to balance ink rheology and deposition rates by tailoring the ink composition and employing a graphene ink as an example. The findings provide insights into improving the scalability and throughput of aerosol jet printing.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Raul D. Rodriguez, Maxim Fatkullin, Aura Garcia, Ilia Petrov, Andrey Averkiev, Anna Lipovka, Liliang Lu, Sergey Shchadenko, Ranran Wang, Jing Sun, Qiu Li, Xin Jia, Chong Cheng, Olfa Kanoun, Evgeniya Sheremet
Summary: In this study, a conductive and resilient nanocomposite between glass and graphene was successfully achieved using a single-step laser-induced backward transfer method. This method not only integrates graphene into glass, but also drives chemical transformations in glass and produces the highest-quality laser-reduced graphene oxide reported to date. The resulting nanocomposite was further functionalized with silver to create a highly sensitive dual-channel plasmonic optical and electrochemical sensor.
ADVANCED MATERIALS
(2022)
Review
Chemistry, Physical
Ying Wu, Chao An, Yaru Guo
Summary: Three-dimensional (3D) printing, also known as additive manufacturing, allows precise and efficient manufacturing of complex components. The combination of 3D printing and graphene-based materials offers enhanced functionality and control over intricate structures. This review highlights the fabrication methods, structural attributes, and multifaceted applications of 3D printed graphene and graphene/polymer composites.
Article
Nanoscience & Nanotechnology
Gehuan Wang, Yue Zhao, Feng Yang, Yi Zhang, Ming Zhou, Guangbin Ji
Summary: This study proposes a reduced graphene oxide (rGO) decorated silver nanowire (Ag NW) film, which combines optical transparency, efficient EMI shielding, durability, and stability. The film demonstrates superior EMI shielding effectiveness and maintains stability after bending and exposure. Additionally, it exhibits fast thermal response and heating stability, making it suitable for wearable devices.
NANO-MICRO LETTERS
(2022)
Article
Chemistry, Physical
Xuemin Geng, Dadong Zhang, Zemin Zheng, Guomin Ye, Simin Li, Hongyu Tu, Yanfen Wan, Peng Yang
Summary: The study focuses on efficient solar steam generation using an innovative solar absorber and demonstrates outstanding performance in terms of light absorption and photothermal conversion. Additionally, the research showcases the capabilities of a solar thermoelectric generator coated with Bi2S3/Pd composite and a PAAH hydrogel for real-time sensing. Overall, the integrated system designed in this study offers new insights into the intelligent design of multifunctional devices.
Article
Chemistry, Analytical
Agnieszka Tabaczynska, Anna Dabrowska, Marcin Sloma
Summary: Through applying screen printing pastes containing silver nanoparticles and carbon to textiles, electro-conductive paths were successfully developed. The research results indicated that samples with 3% carbon nanotubes on aramid fiber substrate showed the best adhesion and resistance to washing and bending cycles, indicating potential applications in smart clothing.
Review
Materials Science, Multidisciplinary
Young Jin Jo, Jehyung Ok, Soo Young Kim, Tae-il Kim
Summary: Ion-conducting polymers, such as hydrogels, have soft, flexible, and stretchable properties enabling interactions with living organisms, and are being utilized in sensors and electronic components for various applications. Advancements in this unconventional electronics are driven by the material's unique properties and its potential for biomedical applications in integrated systems.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Chemistry, Multidisciplinary
Siew Ting Melissa Tan, Aristide Gumyusenge, Tyler James Quill, Garrett Swain LeCroy, Giorgio Ernesto Bonacchini, Ilaria Denti, Alberto Salleo
Summary: Organic mixed ionic-electronic conductors (OMIECs) have gained interest due to their multifunctionality and responsiveness to stimuli. By modulating their charge states and properties, OMIECs can exhibit exciting new characteristics and provide new degrees of freedom in device design. The application of the organic synthetic toolbox offers various chemical and structural design approaches to modify OMIECs' properties.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Luke W. Smith, Jack O. Batey, Jack A. Alexander-Webber, Yu-Chiang Hsieh, Shin- Fung, Tom Albrow-Owen, Harvey E. Beere, Oliver J. Burton, Stephan Hofmann, David A. Ritchie, Michael Kelly, Tse-Ming Chen, Hannah J. Joyce, Charles G. Smith
Summary: This study investigates the insulating states in monolayer graphene grown by chemical vapor deposition (CVD) and wet transferred on Al2O3 without specialized fabrication techniques. The results show the existence of insulating properties and the opening of an energy gap induced by the magnetic field in a graphene device with a bottleneck. A locally high-quality region within the bottleneck dominates transport and causes the device to behave as an insulating tunnel junction. The use of wet transfer fabrication techniques and multiplexing demonstrates the convenience of these scalable and reasonably simple methods for finding high-quality devices for fundamental physics research and functional properties.
Article
Nanoscience & Nanotechnology
Peifu Cheng, Jeremy Espano, Andrew Harkaway, Andrew E. Naclerio, Nicole K. Moehring, Philipp Braeuninger-Weimer, Piran R. Kidambi
Summary: Filtering nanoparticulate aerosols from air streams is crucial for various personal protection equipment (PPE). The existing PPEs are bulky and sacrifice breathability. However, a new study has shown that introducing nanopores into graphene can enable effective filtration of sub-20 nm nanoparticles while maintaining good air permeability. This research has important implications for bio/virus threat mitigation.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Nicole K. Moehring, Pavan Chaturvedi, Peifu Cheng, Wonhee Ko, An-Ping Li, Michael S. H. Boutilier, Piran R. Kidambi
Summary: Introducing angstrom-scale pores into atomically thin 2D materials through chemical vapor deposition enables high flux, proton-selective proton exchange membranes, with in-depth analysis conducted through impedance transport models and stacking methods.
Article
Chemistry, Multidisciplinary
Oliver J. Burton, Zachary Winter, Kenji Watanabe, Takashi Taniguchi, Bernd Beschoten, Christoph Stampfer, Stephan Hofmann
Summary: We introduce a fast-screening descriptor approach to achieve holistic optimization of the graphene-Cu model system and successfully prepare high-quality graphene with a very high yield. Our approach is adaptable to other descriptors and 2D material systems.
Review
Chemistry, Multidisciplinary
Andrew E. E. Naclerio, Piran R. R. Kidambi
Summary: This article reviews scalable approaches for the synthesis of high-quality mono/multilayer h-BN, discusses the challenges and opportunities for each method, and contextualizes their relevance to emerging applications. Maintaining a stoichiometric balance and layer stacking order are identified as main challenges for h-BN synthesis, and addressing these aspects can guide the synthesis of other layered materials.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xiao Ma, Haijun Bin, Bas T. T. van Gorkom, Tom P. A. van der Pol, Matthew J. J. Dyson, Christ H. L. Weijtens, Marco Fattori, Stefan C. J. Meskers, Albert J. J. M. van Breemen, Daniel Tordera, Rene A. J. Janssen, Gerwin H. H. Gelinck
Summary: Organic bulk heterojunction photodiodes (OPDs) are attracting attention in sensing and imaging. The detectivity of these OPDs is often limited by a substantial reverse bias dark current density (J(d)). Recent studies have shown that thermal charge generation mediated by mid-gap states is responsible for J(d). The temperature dependence of J(d) in state-of-the-art OPDs is reported in this study, and it is found that the dark current is attributed to thermal charge generation at the donor-acceptor interface mediated by intra-gap states near the band edges.
ADVANCED MATERIALS
(2023)
Article
Multidisciplinary Sciences
Peifu Cheng, Francesco Fornasiero, Melinda L. Jue, Wonhee Ko, An-Ping Li, Juan Carlos Idrobo, Michael S. H. Boutilier, Piran R. Kidambi
Summary: The mechanisms of water and vapor transport through nanoscale confinements are not fully understood. Significant differences in transport between water vapor and liquid water through nanopores were observed and explained by a flow resistance model. Atomically thin graphene membranes were demonstrated to have high water vapor transport rate and effective blocking of sub-nanometer ions/molecules.
NATURE COMMUNICATIONS
(2022)
Article
Multidisciplinary Sciences
Guodong Li, Guanqun Han, Lu Wang, Xiaoyu Cui, Nicole K. Moehring, Piran R. Kidambi, De-en Jiang, Yujie Sun
Summary: This study reports a new method for water electrolysis hydrogen production using a Cu3Ag7 electrocatalyst to replace the sluggish oxygen evolution reaction with the more favorable partial oxidation of formaldehyde to formate under alkaline conditions. The strategy not only produces more valuable anodic product than O-2 but also releases H-2 at the anode with a small voltage input.
NATURE COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
A. Gumprich, J. Liedtke, S. Beck, I Chirca, T. Potocnik, J. A. Alexander-Webber, S. Hofmann, S. Tappertzhofen
Summary: The fabrication and characterization of steep slope transistor devices based on low-dimensional materials require precise control over electrostatic doping profiles. In this study, we present a versatile graphene heterostructure platform with three buried individually addressable gate electrodes. The platform facilitates analysis of electrostatic doping of low-dimensional materials for novel low-power transistor devices.
Article
Chemistry, Multidisciplinary
Xiao Ma, Riccardo Ollearo, Bas T. van Gorkom, Christ H. L. Weijtens, Marco Fattori, Stefan C. J. Meskers, Albert J. J. M. van Breemen, Rene A. J. Janssen, Gerwin H. Gelinck
Summary: Trap states in organic semiconductors, particularly in bulk-heterojunction photodiodes, have been investigated using three sensitive techniques. The study reveals that intra-gap states in the polymers, lying above the energy of the highest occupied molecular orbital, are responsible for the reverse-bias dark current density. The results emphasize the importance of reducing the energy and density of these intra-gap states for improving the performance of near-infrared organic photodiodes.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Pavan Chaturvedi, Nicole K. Moehring, Thomas Knight, Rahul Shah, Ivan Vlassiouk, Piran R. Kidambi
Summary: Selective proton permeation through atomically thin graphene can be achieved by hot-pressing it with proton conducting polymer (such as Nafion). The quality and defects of graphene transfer are influenced by hot-press time, temperature, and pressure. Sandwich membranes of Nafion|graphene|Nafion, prepared under optimal transfer conditions, show reduced hydrogen crossover and comparable proton area specific resistance, making them suitable for practical PEM applications.
MATERIALS ADVANCES
(2023)
Article
Chemistry, Multidisciplinary
Patrik Gubeljak, Tianhui Xu, Lorenzo Pedrazzetti, Oliver J. Burton, Luca Magagnin, Stephan Hofmann, George G. Malliaras, Antonio Lombardo
Summary: This paper presents a novel sensor based on graphene coplanar waveguides and microfluidic channels for the identification of non-amplified DNA sequences and single-base mutations. The sensor demonstrates high sensitivity and the ability to generate multidimensional datasets for advanced data analysis, achieving accurate discrimination between different DNA sequences even in the presence of noise and low signal-to-noise ratios.
Proceedings Paper
Engineering, Biomedical
Patrik Gubeljak, Lorenzo Pedrazzetti, Oliver J. Burton, Luca Magagnin, Stephan Hofmann, George G. Malliaras, Antonio Lombardo
Summary: This paper presents an electrolytically gated broadband microwave sensor where atomically-thin graphene layers are integrated into coplanar waveguides and coupled with microfluidic channels. The interaction between a solution under test and the graphene surface causes material and concentration specific modifications of graphene's DC and AC conductivity. Our devices represent a new and accurate metrological tool for chemical and biological sensing.
2022 IEEE INTERNATIONAL SYMPOSIUM ON MEDICAL MEASUREMENTS AND APPLICATIONS (MEMEA 2022)
(2022)
Article
Chemistry, Physical
Pavan Chaturvedi, Nicole K. Moehring, Peifu Cheng, Ivan Vlassiouk, Michael S. H. Boutilier, Piran R. Kidambi
Summary: Selective proton permeation through atomically thin materials like graphene is important for energy conversion/storage and separations. This study investigates the influence of sub-nanometer defects in chemically vapor deposited (CVD) graphene on proton transport and selectivity. The results show that mitigating defects and using interfacial polymerization significantly increase proton conductance and selectivity, making the atomically thin membranes suitable for practical applications.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Marco Carlotti, Saurabh Soni, Andrii Kovalchuk, Sumit Kumar, Stephan Hofmann, Ryan C. Chiechi
Summary: This paper presents a simple model for comparing the degree of electronic coupling between molecules and electrodes across different large-area molecular junctions. The model demonstrates its generalizability by comparing various junctions and can predict the differences in charge transport and rectification mechanisms. It provides useful insights for the design of new molecular motifs by synthetic chemists.
ACS PHYSICAL CHEMISTRY AU
(2022)
