Article
Chemistry, Physical
Do-Won Kim, Hyeon-Joong Kim, Won-Yong Lee, Kyoungdu Kim, Sin-Hyung Lee, Jin-Hyuk Bae, In-Man Kang, Kwangeun Kim, Jaewon Jang
Summary: Sol-gel processed Y2O3 films were used as active channel layers for RRAM devices. Addition of a triethylamine stabilizer enhanced the local electric field, improving device reliability and repeatability.
Article
Engineering, Electrical & Electronic
Samir Thakur, Sankar Moni Borah, Ashok Singh, Dilip Saikia, Nirab C. C. Adhikary
Summary: A unique surface texturing methodology has been employed to control and improve the optical properties of metal nanodiscs. By adding roughness to the lateral surface, the optical spectra can be tuned and the field intensities can be enhanced. Experimental feasibility of this method has been demonstrated, making it potentially useful for various applications such as solar energy harvesting and plasmonic devices.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Applied
Dandan Li, Ruyuan Liu, Yang Tao, Yaning Shi, Pei Wang, Yongbin Han
Summary: This study aimed to enhance the synthesis of carboxymethyl starch (CMS) using induced electric field (IEF). IEF accelerated the carboxymethylation by increasing the attacking rate of OH- and ClCH2COO- ions on starch particles and slightly intensifying the thermal effect. It also increased the degree of substitution and reaction efficiency, destroyed the starch granular and crystal structure, and improved the water solubility, swelling power, and paste transparency of the product. Furthermore, IEF treatment resulted in the formation of new crystals, enhancing the thermostability of CMS. Overall, the results showed that IEF improved the carboxymethylation and enhanced the thermostability of CMS, providing guidance for the applications of electro-techniques in starch modification involving charged species.
CARBOHYDRATE POLYMERS
(2023)
Article
Chemistry, Physical
Xueliang Wang, Yuhao Wu, Xin Wang
Summary: In this study, the hydrothermal deposition (HD) method was used to enhance the hydrophobicity of the gas diffusion layer (GDL) in proton exchange membrane fuel cells (PEMFCs). The enhanced water retention capacity of the GDL improved the electrochemical performance at low humidity. The findings offer a practical approach for tailoring the water management capacity of GDL and improving the PEMFC performance under low humidity conditions.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Jian Wen, Hailong He, Chunping Niu, Mingzhe Rong, Yanqin Huang, Yi Wu
Summary: In this paper, a TENG model considering the effect of surface roughness on capacitance is established for the first time, and experimental results show that it can better predict the outputs of TENG.
Article
Chemistry, Physical
Yanqiu Zou, Li Jiang, Tengfei Zhai, Tingting You, Xufeng Jing, Rongyang Liu, Fanghao Li, Wei Zhou, Shangzhong Jin
Summary: High-performance enhancement of Raman scattering is achieved through hierarchical CuS microflowers, with enhancement sensitivity proved to be related to the number and spacing of CuS petals and illumination of the incident wavelength. CuS microflowers serve as a high-performance SERS platform to expand the application field of SERS.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Margherita Angelini, Eliana Manobianco, Paola Pellacani, Francesco Floris, Franco Marabelli
Summary: The recent development and technological improvement in dealing with plasmonic metasurfaces have led to interesting applications in sensing challenges. The study focused on the influence of well-characterized structures supporting plasmonic resonances on the emission efficiency of a fluorophore. The results showed the spectral dependence of fluorescence on the plasmonic field distribution and its connection with the enhancement of the signal.
Article
Chemistry, Physical
Ilya Reshetov, Sergey Scherbak, Dmitry Tagantsev, Valentina Zhurikhina, Andrey Lipovskii
Summary: This study demonstrates for the first time that additional poling at room temperature of a soda-lime glass can significantly increase its optical second harmonic signal. The observed orientation of hydrogenated dipoles near the glass surface is found to be responsible for the nonlinear behavior of the glass. This finding has implications for molecular physics and electrodynamic studies.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Optics
Jinyong Hu, Wangdi Bai, Chuxuan Tan, Yiming Li, Qi Lin, Lingling Wang
Summary: The electric field intensity from a metallic nanoantenna can be remarkably heightened through introducing a dielectric nanostructure to build a hybrid dielectric-metal nanoantenna. The hybrid nanoantenna, composed of a gold nanorod dimer and a slotted silicon nanodisk, exhibits an intensified resonant electric field intensity at the gap of the dimer nanoantenna, exceeding 30 times higher than that of the individual dimer nanoantenna. The field enhancement mechanism is primarily attributed to the mode coupling between plasmonic resonances of the gold nanoantenna and the radiationless anapole modes supported by the slotted silicon nanodisk.
OPTICS COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Tongzhou Shen, Jianlong Chen, Linan Zhang
Summary: In this study, a method for controlling the formation of microarray structures on the surface using an electric field is proposed. The formation of microstructures under the influence of the electric field is described using a phase field model. Numerical methods are applied to observe the morphological changes on the polymer surface. The results show that the electric field successfully induces the formation of microarray structures on the polymer surface and the morphology can be controlled by changing the electric field strength and distribution.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Shuanlong Di, Silin Chen, Chengshuai Chang, Shulan Wang, Jihoon Choi, Li Li
Summary: This work introduces faceted lead zirconate titanate with exposed (110) plane as an additive in the cathode of Li-S batteries to suppress the shuttle effect. The faceted ferroelectric with strong internal electric field and sufficient surface polar sites shows more efficient anchoring towards polysulfides compared to its counterparts. Combined with a porous carbon host, the elaborately designed cathode demonstrates excellent cycling stability with a low capacity attenuation rate of 0.047% per cycle after 300 cycles at 1 C. This work advances our understanding of ferroelectric materials engineering and electric field effects on Li-S battery stability, potentially inspiring new strategies for high-performance ferroelectric-based energy devices.
SCRIPTA MATERIALIA
(2023)
Article
Engineering, Environmental
Zanling Huang, Xia Zhao, Hong Xia, Fushen Lu, Liangsheng Hu, Paul K. Chu
Summary: This study systematically investigated the photocatalytic activities of a series of photocatalysts and found that the LEF effect of polar MgO(111) significantly improves the performance of GCN, while the traditional heterojunction effect plays a major role in the MgO(111)/GCN composite. The results reveal insights into the enhancement mechanism of photocatalysts with polar supporting materials and offer a simple strategy to optimize photocatalytic processes for efficient utilization of solar energy.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Simon Roa, Goekalp Engin Akinoglu, Maria Laura Pedano
Summary: In recent years, noble metal nanoparticle-based periodic nanoarrays known as photonic crystals have attracted attention for their potential to enhance electric nearfield for visible light and serve as sensitive SERS substrates. The ENFE in Au and Ag nanodisks-based photonic crystals was analyzed using FDTD method. The study found that the ENFE strongly depends on the geometrical parameters, with factors up to 1200 observed for the visible light spectrum. The effects of nanodisks surface curvature-based defects on the ENFE were also investigated.
SURFACES AND INTERFACES
(2023)
Article
Geochemistry & Geophysics
E. Zibulski, N. Klitzsch
Summary: Spectral induced polarization (SIP) laboratory measurements show that the electrical polarization strength of water-saturated rocks is strongly correlated with the inner surface area of rocks. This study investigates the influence of inner surface roughness on the SIP response by simulating micro-scale rock models. The results indicate that surface roughness affects the position and magnitude of the primary relaxation frequency, and also leads to the formation of secondary polarizations above the polarization frequency of the primary polarization. The study concludes that the SIP method has the potential to detect inner surface roughness in real rocks, but cannot differentiate between rough particles and a distribution of smooth particles.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2023)
Article
Materials Science, Multidisciplinary
Mingyue Dang, Guoqiang Tan, Min Wang, Bixin Zhang, Yong Wang, Long Lv, Huijun Ren, Ao Xia
Summary: The g-C3N4/(110) facet BiVO4 heterojunction photocatalyst was fabricated through the photo-deposition method, enhancing the effective separation of photogenerated carriers and interface charge transfer. This resulted in a significant increase in the stable photocurrent and degradation rate of the photocatalyst.
Article
Engineering, Chemical
Olaf Lahayne, Bernhard Pichler, Roland Reihsner, Josef Eberhardsteiner, Jongbeom Suh, Dongsub Kim, Seungkuk Nam, Hanseung Paek, Boris Lorenz, Bo N. J. Persson
Article
Engineering, Chemical
Alexei Khomenko, Mariya Khomenko, Bo N. J. Persson, Kateryna Khomenko
Article
Engineering, Chemical
Martin H. Mueser, Wolf B. Dapp, Romain Bugnicourt, Philippe Sainsot, Nicolas Lesaffre, Ton A. Lubrecht, Bo N. J. Persson, Kathryn Harris, Alexander Bennett, Kyle Schulze, Sean Rohde, Peter Ifju, W. Gregory Sawyer, Thomas Angelini, Hossein Ashtari Esfahani, Mahmoud Kadkhodaei, Saleh Akbarzadeh, Jiunn-Jong Wu, Georg Vorlaufer, Andras Vernes, Soheil Solhjoo, Antonis I. Vakis, Robert L. Jackson, Yang Xu, Jeffrey Streator, Amir Rostami, Daniele Dini, Simon Medina, Giuseppe Carbone, Francesco Bottiglione, Luciano Afferrante, Joseph Monti, Lars Pastewka, Mark O. Robbins, James A. Greenwood
Article
Engineering, Mechanical
Mona Mahboob Kanafi, Ari Juhani Tuononen, Leonid Dorogin, Bo N. J. Persson
Article
Nanoscience & Nanotechnology
Alexei Khomenko, Miroslav Zakharov, Denis Boyko, Bo N. J. Persson
BEILSTEIN JOURNAL OF NANOTECHNOLOGY
(2018)
Article
Engineering, Chemical
Alexei Khomenko, Miroslav Zakharov, Bo N. J. Persson
Article
Physics, Condensed Matter
Bo N. J. Persson
Summary: This paper presents a general theory of electroadhesion for layered materials with finite electric conductivity and an air gap caused by interfacial surface roughness. The theory is shown to reduce to previous results under certain limits, with numerical results provided to illustrate its application.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2021)
Article
Physics, Multidisciplinary
Martin H. Mueser, Bo N. J. Persson
Summary: This article presents simulations on the sticking contact between a rigid cylinder and a viscoelastic half space, revealing a maximum in the work of separation at intermediate pull-off velocities. The maximum tensile forces increase monotonically with the pull-off speed and the crack tip speed, consistent with the Persson-Brener approach. Additionally, the fracture mode transitions from interfacial crack propagation to quasi-uniform bond breaking with an increasing range of adhesion.
Article
Engineering, Mechanical
Toshi Tada, Satoshi Kawasaki, Ryouske Shimizu, Bo N. J. Persson
Summary: We investigate the friction between a rectangular tire tread rubber block and an ice surface under different temperatures (-38 to -2 degrees C) and sliding speeds (3 mu m/s to 1 cm/s). At low temperatures and low sliding speeds, slip between the ice surface and ice fragments attached to the rubber surface plays a significant role in the friction force. When the temperature is above -10 degrees C or the sliding speed is high enough, a thin premelted water film forms on the ice surface, reducing the contribution of shearing the area of real contact to the friction force. Instead, the viscoelastic deformations of the rubber caused by the ice asperities become the dominant contribution to the friction force. We also discuss the impact of waxing on the friction between skis and snow (ice particles).
Article
Materials Science, Multidisciplinary
Jianjun Wang, Avinash Tiwari, Jie Gao, Yang Huang, Yu Jia, Bo N. J. Persson
Summary: In this study, we investigate the role of electronegativity in sliding friction of two-dimensional monolayer systems. Our results show that the friction force strongly depends on the electronegativity difference between the atoms involved. When sliding along a nonpolar path, the friction force is almost the same for all studied systems, regardless of the material and surface structures. However, for sliding along a polar path, the friction force follows a universal linear scaling law, where the force is proportional to the electronegativity difference between constituent atoms. We further demonstrate that the electronegativity-induced atomic dipoles enhance the corrugation of charge distribution, leading to increased sliding barriers.
Article
Engineering, Chemical
B. N. J. Persson, A. Tiwari, G. L. Dorogin, Juelich, Gert Heinrich, M. Tahir, K. W. Stoeckelhuber
KGK-KAUTSCHUK GUMMI KUNSTSTOFFE
(2020)
Proceedings Paper
Engineering, Mechanical
Julian Angerhausen, Hubertus Murrenhoff, Bo N. J. Persson, Katharina Schmitz
PROCEEDINGS OF THE ASME/BATH SYMPOSIUM ON FLUID POWER AND MOTION CONTROL, 2019
(2020)
Retraction
Materials Science, Multidisciplinary
A. I. Volokitin, B. N. J. Persson
Article
Engineering, Mechanical
Julian Angerhausen, Hubertus Murrenhoff, Bo N. J. Persson, Leonid Dorogin, Michele Scaraggi
INTERNATIONAL JOURNAL OF FLUID POWER
(2019)
Article
Chemistry, Physical
Bo N. J. Persson, Jianglong Guo
