Article
Engineering, Electrical & Electronic
Anishkumar Soman, Ujjwal K. Das, Steven S. Hegedus
Summary: In this work, the intermediate hydrogen plasma treatment (I-HPT) method was used to passivate the surface of amorphous silicon in silicon heterojunction solar cells. The method improved the passivation of the surface and was easily integrated into the production line. Fourier transform infrared spectroscopy showed that I-HPT made the bulk of the amorphous matrix more disordered without hydrogen-induced crystallization. The application of I-HPT to a silicon heterojunction solar cell increased the VOC by approximately 15 mV and the efficiency by 0.3%.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Hansin Bae, Kensuke Sasai, Haruka Suzuki, Hirotaka Toyoda
Summary: A method for graphite-like carbon deposition using Ar/C6H6 surface-wave plasma is proposed. By applying a high negative bias voltage to the substrate, conductive carbon films with high deposition rates and good spatial uniformity can be achieved, with an increased sp(2) ratio.
Article
Chemistry, Physical
Peng Bi, Mingchao Zhang, Shuo Li, Haojie Lu, Haomin Wang, Xiaoping Liang, Huarun Liang, Yingying Zhang
Summary: This study presents a flexible strain sensor with high sensitivity and wide strain detection range by using an integrated membrane containing both parallel aligned and randomly aligned carbon nanofibers(CNFs). The sensor exhibits both high sensitivity and wide working range due to the advantages of both types of CNF membranes. It can accurately detect full-range human motions and has potential applications in health management and medical assistance.
Article
Materials Science, Coatings & Films
A. Capote, G. Capote, E. J. Corat, V. J. Trava-Airoldi
Summary: Diamond-like carbon (DLC) coatings are widely used in industries due to their excellent properties. A modified pulsed-DC PECVD technique has recently become popular for growing amorphous hydrogenated carbon (a-C:H) films at low pressures, resulting in improved mechanical and tribological properties. This method offers advantages such as higher energy, faster acceleration of C+ ions, simpler equipment, and lower operating costs.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Composites
Chen Zhan, Wenzhi Cui, Longjian Li, Xiaojun Quan, Yuqi Zhang, Fei Xiao
Summary: In order to enhance the thermal conductivity of thermal interface materials (TIM), a dual-aligned scaffold consisting of aligned carbon nanofiber (CNFs) in microscopic structures and directional microporous channels was fabricated. The dual-aligned scaffold was produced by combining magnetic alignment and conventional freeze-casting, and then immersed into silicone rubber to obtain the dual-aligned scaffold and silicone rubber (D-AS/SR) composites with vacuum assistance. The results showed that the thermal conductivity of the D-AS/SR composites reached 4.66 W/(m·K) at 7.73 vol% CNFs, which was 1.5 times higher than that of conventional freeze-casting composites and 25 times higher than that of pure silicone rubber. Additionally, the compressive strength of the D-AS/SR composites was greatly improved while the electrical insulation was reduced.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Physics, Fluids & Plasmas
Tae-Woo Kim, Moo-Young Lee, Chin-Wook Chung
Summary: This study experimentally demonstrated that the hysteresis phenomenon in high-pressure argon plasma can be controlled by applying a DC magnetic field. The hysteresis loop decreases in size and eventually disappears with increasing DC magnetic field strength, leading to significant changes in electron energy probability functions. The evolution of the electron energy probability functions under a strong DC magnetic field condition results in a significant reduction in collisional energy loss and explains the vanishing of the hysteresis phenomenon.
PHYSICS OF PLASMAS
(2021)
Article
Materials Science, Multidisciplinary
Sixu Lin, Dong Xie, Yongliang Tang, Yiwen Wang, Fengjuan Jing, Nan Huang, Yongxiang Leng
Summary: The study investigated the effects of N2/C2H2 gas flow ratio on the composition, bond structure, scratch resistance, and optical properties of a-CNx:H films, revealing that an increase in the N2/C2H2 gas ratio leads to higher N/C atomic ratio, carbon and nitrogen bond structure ratios, and optical bandgap of the films. The results suggest that a-CNx:H films can serve as optical and protective coatings.
Review
Materials Science, Composites
Ayesha Gul, Nader Ghaffari Khaligh, Nurdiana Nordin, Azman Ma'amor, Nurhidayatullaili Muhd Julkapli
Summary: This review presents the synthesis, functionalization, and applications of carbon nanofibers (CNF) in environmental, industrial, and biomedical fields. The article highlights the importance for readers to understand the production, latest trends, and fabrication techniques of CNF to obtain efficient, cost-effective, eco-friendly, and multi-potential applications of CNF-based nanocomposites (CNFN).
POLYMER COMPOSITES
(2023)
Article
Engineering, Mechanical
Farid Movassagh-Alanagh, Amir Abdollah-Zadeh, Maryam Alizadeh Zolbin, Narguess Nemati, Ramin Aghababaei
Summary: In this study, titanium nitride, titanium boro-nitride, and titanium di boride coatings were deposited on H13 steel using plasma-enhanced chemical vapor deposition. The TiBN coating exhibited a crystalline microstructure consisting of TiN and TiB2 phases. The coatings had different thicknesses and crystalline sizes, leading to variations in hardness and wear resistance, with the TiB2 coating demonstrating the highest wear resistance due to its high hardness and good adhesion strength.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Mengjie Zhang, Yang Lu, Zhenjie Yue, Mengmeng Tang, Xiaoke Luo, Chen Chen, Tao Peng, Xianming Liu, Yongsong Luo
Summary: In this study, pomegranate-like TiN@MXene microspheres with both adsorption capacity and catalytic effect on LiPSs conversion were prepared by combining two-dimensional layered material MXene and TiN. The interconnected MXene skeleton solves the stacking problem and ensures the uniform distribution of sulfur. The TiN@MXene cathode exhibits high initial discharge capacity, excellent rate performance, and long lifespan through the adsorption and transformation of LiPSs.
Article
Biology
Ilaria Venturino, Vito Vurro, Silvio Bonfadini, Matteo Moschetta, Sara Perotto, Valentina Sesti, Luigino Criante, Chiara Bertarelli, Guglielmo Lanzani
Summary: This study demonstrates the use of a newly designed molecular phototransducer to stimulate C2C12 skeletal muscle cells and analyzes the response distribution in multinuclear cells. The study finds a deterministic response to light stimuli, but with some erratic behavior.
COMMUNICATIONS BIOLOGY
(2023)
Article
Physics, Applied
Minh-Thang Hoang, Nishant Deshmukh, Amar T. Mohabir, Leonard C. Feldman, Michael A. Filler, Jerry W. Shan
Summary: Doped semiconductor nanowires are important for next-generation electronic colloidal materials. This study quantitatively measures the permanent dipoles of pn nanowires and investigates their origin, showing that they originate from non-uniform surface-charge distributions rather than internal charges at the p-n junction. This understanding has relevance to the manipulation, assembly, characterization, and separation of nanowire electronics by electric fields.
APPLIED PHYSICS LETTERS
(2023)
Article
Chemistry, Analytical
Hossieny Ibrahim, Yassien Temerk
Summary: A novel electrochemical sensor was developed for the detection of febuxostat (FBX) in human plasma, showing superior performance with wide linear range and high sensitivity, and potential for detecting other substances like ascorbic acid, dopamine, and uric acid. The sensor also paved the way for electrochemical quantification of FBX in pharmaceutical formulations and human biological fluids, with validation conducted using ultra-high performance liquid chromatography (UHPLC).
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Multidisciplinary
Martin H. C. van Son, Anton M. Berghuis, Bas F. M. de Waal, Felix A. Wenzel, Klaus Kreger, Hans-Werner Schmidt, Jaime Gomez Rivas, Ghislaine Vantomme, E. W. Meijer
Summary: In this study, functionalization of C-3-symmetric carbonyl-bridged triarylamine trisamide (CBT) with oligodimethylsiloxane (oDMS) side chains was shown to lead to fully covered surfaces with aligned domains, enabling long-range exciton transport.
ADVANCED MATERIALS
(2023)
Article
Physics, Applied
Andreas Hoffmann, Matthias Uhl, Maximilian Ceblin, Joachim Bansmann, Timo Jacob, Alexander J. C. Kuehne
Summary: Carbon nanofiber nonwovens are electrode materials with exceptional performance in energy storage devices. Plasma activation using an atmospheric pressure plasma-jet is an environmental-friendly method to improve the capacitance of nanofiber nonwovens.
PLASMA PROCESSES AND POLYMERS
(2022)
Article
Biochemistry & Molecular Biology
Maike M. K. Hansen, Winnie Y. Wen, Elena Ingerman, Brandon S. Razooky, Cassandra E. Thompson, Roy D. Dar, Charles W. Chin, Michael L. Simpson, Leor S. Weinberger
Article
Chemistry, Multidisciplinary
Yajie Wang, Xiao Dong, Xingyu Tang, Haiyan Zheng, Kuo Li, Xiaohuan Lin, Leiming Fang, Guang'ai Sun, Xiping Chen, Lei Xie, Craig L. Bull, Nicholas P. Funnell, Takanori Hattori, Asami Sano-Furukawa, Jihua Chen, Dale K. Hensley, George D. Cody, Yang Ren, Hyun Hwi Lee, Ho-Kwang Mao
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2019)
Article
Chemistry, Inorganic & Nuclear
Ming Jin, Xuefeng Ban, Junkuo Gao, Jihua Chen, Dale K. Hensley, Hoi Chun Ho, Rebecca J. Percoco, Christopher M. Ritzi, Yanfeng Yue
INORGANIC CHEMISTRY
(2019)
Article
Chemistry, Physical
Qun Cao, Dale K. Hensley, Nickolay Lavrik, B. Jill Venton
Article
Chemistry, Physical
William T. McClintic, Graham J. Taylor, Michael L. Simpson, C. Patrick Collier
JOURNAL OF PHYSICAL CHEMISTRY B
(2020)
Article
Chemistry, Physical
Arthur P. Baddorf, Adam J. Rondinone, Dale K. Hensley
Article
Chemistry, Physical
Ondrej Dyck, Lizhi Zhang, Mina Yoon, Jacob L. Swett, Dale Hensley, Cheng Zhang, Philip D. Rack, Jason D. Fowlkes, Andrew R. Lupini, Stephen Jesse
Summary: Atomic-scale fabrication is a major challenge and goal for the nanoscience community. Using free-standing graphene as a platform, the focused electron beam in a scanning transmission electron microscope can induce defects and sculpt the graphene with highly localized control. This study demonstrates the selective insertion of transition metal atoms into graphene and explores their properties through first-principles density functional theory calculations.
Article
Chemistry, Multidisciplinary
Qun Cao, Zijun Shao, Dale K. Hensley, Nickolay Lavrik, B. Jill Venton
Summary: The study systematically explores the effects of thin layer electrochemistry and diffusion at carbon fiber, carbon nanospike, and carbon nanotube yarn electrodes, providing insights on the impact of different surface structures on electrochemical processes. The research introduces a new simulation model to quantitate thin layer and diffusion contributions, explaining the CV shape and peak separation for electrodes with different surface structures, which will enable rational design of electrodes with thin layer electrochemistry.
Article
Materials Science, Multidisciplinary
Mariappan Parans Paranthaman, Nathan Peroutka-Bigus, Kristina R. Larsen, Kruttika S. Phadke, Tina Summers, Merlin Theodore, Dale K. Hensley, Alan M. Levine, Richard J. Lee, Bryan H. Bellaire
Summary: The application of antimicrobial coatings to masks and respirators can reduce the transmission of SARS-CoV-2 and make them suitable for repeated use.
MATERIALS TODAY ADVANCES
(2022)
Article
Biochemical Research Methods
He Zhao, Kailash Shrestha, Dale K. Hensley, B. Jill Venton
Summary: Carbon nanospikes (CNSs) are a new nanomaterial that enhances the sensitivity for dopamine detection. In this study, CNS-modified electrodes (CNSMEs) were evaluated for the detection of adenosine, hydrogen peroxide ( H2O2), and histamine. The results showed that CNSMEs had higher signals compared to conventional electrodes (CFMEs), with increased sensitivity for adenosine (4.8 times), H2O2 (1.5 times), and histamine (2 times). CNSMEs also promoted the formation of secondary products for adenosine and histamine, allowing differentiation from analytes with similar oxidation potentials. CNSs selectively enhanced the sensitivity for adenosine and histamine compared to H2O2. The use of CNSMEs in brain slices and tissue measurements showed high selectivity and low fouling.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Electrical & Electronic
Yuan Qin, Ming Xiao, Ruizhe Zhang, Qingyun Xie, Tomas Palacios, Boyan Wang, Yunwei Ma, Ivan Kravchenko, Dayrl P. Briggs, Dale K. Hensley, Bernadeta R. Srijanto, Yuhao Zhang
Summary: This work presents the fabrication of quasi-vertical GaN Schottky barrier diodes (SBDs) on a 6-inch Si substrate with a record-breaking breakdown voltage (BV) of over 1 kV. The novel use of a deep mesa in quasi-vertical devices allows for a self-aligned edge termination, and the mesa sidewall is covered by p-type nickel oxide (NiO) to reduce the surface field. The device exhibits a parallel-plane junction electric field of 2.8 MV/cm, along with low turn-on voltage and specific on-resistance. Additionally, it demonstrates excellent overvoltage robustness under continuous stress.
IEEE ELECTRON DEVICE LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Gregory S. Larsen, Yongqiang Cheng, Luke L. Daemen, Tej N. Lamichhane, Dale K. Hensley, Kunlun Hong, Harry M. Meyer, Steven J. Monaco, Alan M. Levine, Richard J. Lee, Emma Betters, Kim Sitzlar, Jesse Heineman, Justin West, Peter Lloyd, Vlastimil Kunc, Lonnie Love, Merlin Theodore, Mariappan Parans Paranthaman
Summary: The study aims to identify differences between various commercial grades of polypropylene in order to develop N95 filtration media. Analysis reveals that the most differentiating factor is related to the crystallization of the polymer and the formation of electret. Materials with higher crystallization onset temperatures, slower crystallization rates, and a larger number of crystallites form stronger electrets and are more effective in filtration.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Michael W. Ambrogio, Miguel Toro-Gonzale, Tamara J. Keever, Timothy E. McKnight, Sandra M. Davern
ACS APPLIED NANO MATERIALS
(2020)
Article
Engineering, Electrical & Electronic
Mohammad Aminul Haque, Nickolay Lavrik, Ava Hedayatipour, Dale Hensley, Dayrl P. Briggs, Nicole McFarlane
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
(2020)
Proceedings Paper
Engineering, Electrical & Electronic
Mohammad Aminul Haque, Nicole McFarlane, Nickolay Lavrik, Dale Hensley
2019 IEEE 69TH ELECTRONIC COMPONENTS AND TECHNOLOGY CONFERENCE (ECTC)
(2019)