Article
Chemistry, Multidisciplinary
Xueying Chang, Cheng-Wei Lin, Ailun Huang, Maher F. El-Kady, Richard B. Kaner
Summary: Through laser scribing technique, short-chain aniline trimers (ATs) and carbon nanotubes (CNTs) were covalently bonded using amide covalent linkages, resulting in a covalently coupled AT/CNT (ccAT/CNT) composite. The ccAT/CNT composite exhibited excellent cycling and rate performance, retaining 80% of its original capacitance after 20,000 charge/discharge cycles. This molecular design approach enabled by laser irradiation provides a feasible pathway towards robust advanced energy storage devices.
Article
Chemistry, Physical
Takuya Morishita, Mitsumasa Matsushita
Summary: Anisotropic carbon materials like carbon nanotubes (CNTs) with high thermal conductivity have been modified to exhibit high electrical insulation and heat resistance through layer-by-layer self-assembly with oxide nanomaterials (ONMs). This method enables the preparation of electrically insulating CNTs with enhanced through-plane thermal conductivity for various carbon materials and thermal management applications.
Article
Chemistry, Multidisciplinary
Jiseong Kim, Da-Bin Park, Jae Hong Choi, Minki Jo, Seokhui Kim, Pilgun Oh, Yoonkook Son
Summary: Surface-functionalized carbon nanotubes (CNTs) were successfully synthesized by dry ball milling for industrial application. The optimal conditions, including the content of carboxyl group induced on CNTs surface, were determined based on the ball milling time. CNTs-30s showed high dispersibility in N-methyl-2-pyrrolidone (NMP) while retaining most carboxyl groups and maintaining high conductivity. The excellent performance of CNTs-30s was confirmed in terms of rate capability and 5C/5C cyclability for Li1+x(Ni1-y-zCoyMnz)(1-x)O-2 cathode with 60% Ni (NCM622), due to a well-formed conductive network.
Article
Materials Science, Composites
Jeffrey J. Kim, Avery D. Brown, Charles E. Bakis, Edward C. Smith
Summary: The study aims to explore hybrid CNT - carbon/epoxy composites for high damping and stiffness, and the system with highly aligned CNT yarns treated with a non-ionic surfactant, located at the interlayers and oriented along the loading direction, shows superior damping and stiffness characteristics.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Composites
Yichuan Zhang, Zhipeng Li, Guangming Chen, Yue Hu, Liang Deng
Summary: In this study, the trade-off between thermoelectric (TE) and mechanical (ME) performances in flexible polycarbonate (PC)/single-walled carbon nanotube (SWCNT) composites was successfully decoupled via interfacial adjustment. The obtained composite exhibited improved TE and ME performances by enhancing interfacial affinity and electrical conductivity.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Polymer Science
Ryoma Tokonami, Katsuhito Aoki, Teruya Goto, Tatsuhiro Takahashi
Summary: This study achieved effective surface modification of carbon fibers by grafting a large amount of multi-walled carbon nanotubes using a highly reactive polymer. The modified carbon fibers showed improved mechanical properties due to the physical anchoring structure formed between the carbon fibers and multi-walled carbon nanotubes. The findings suggest potential applications for lightweight thermoplastics, such as in the automotive industry.
Article
Chemistry, Inorganic & Nuclear
Hui Liu, Yuanke Wu, Pan Liu, Han Wang, Maowen Xu, Shu-juan Bao
Summary: A novel material with a nano-Co-armed carbon nanotube functional layer was proposed to enhance the stability of room temperature Na-S batteries by improving the adsorption and conversion efficiency of NaPSs, achieving high electronic conductivity and low decay rate. This unique structure delivered improved stable electrochemical performance with high coulombic efficiency and excellent capacity rate.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Materials Science, Ceramics
Alei Dang, Zeqi Yuan, Xin Liu, Shuze Ma, Yali Yang, Amir Zada, Yali Gao, Yuhui Liu, Tiehu Li, Yanying Han
Summary: The preparation of high performance, low cost and recyclable adsorbents is crucial for dealing with water pollution. Carbon foam (CF) is a promising adsorbent, but its uneven size distribution and lack of adsorption sites hinder its application. In this study, CF/CNTs/GO composites were successfully prepared, and the addition of CNTs and GO nanosheets significantly improved the adsorption performance. This work provides a low-cost fabrication technique for high-performance CF/CNTs/GO adsorbents and contributes to the treatment of contaminated water.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Electrical & Electronic
Dengji Guo, Xudong Pan, Yu Xie, Yifei Liu, Hu He
Summary: This study systematically investigated the effects of different loading rates and loading modes on the performance of flexible strain sensors, revealing that high loading rates can increase sensitivity and the degree of hysteresis, and that non-uniform loading modes have a minimal impact on sensor performance compared to uniform loading modes.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Chemistry, Physical
Haizhou Liu, Ying Xu, Xiaodong Zhao, Dong Han, Fei Zhao, Qiaowen Yang
Summary: This article introduces a novel lightweight foam material (CGF) composed of carbon nanotubes (CNTs) and reduced graphene oxide (rGO) for electromagnetic interference (EMI) shielding. The addition of 20 wt% CNTs expands the conductive network and increases the conductivity of the CGF material by 274.4%. The CGF material exhibits excellent EMI shielding effectiveness (SE) of 71.4 dB at a low mass per unit area of 12.5 mg·cm(-2). The CGF material also shows high comprehensive performance in terms of SE divided by density (SED) and mass per unit area (SEMA) values.
Article
Chemistry, Multidisciplinary
Shamil Galyaltdinov, Ivan Lounev, Timur Khamidullin, Seyyed Alireza Hashemi, Albert Nasibulin, Ayrat M. Dimiev
Summary: In this study, polymer composites with record-high dielectric permittivity in both low-frequency range and X-band were successfully prepared by using Tuball carbon nanotubes as fillers and a simple preparation procedure. The specific structural features of Tuball nanotubes were attributed to the significantly high permittivity values.
Review
Chemistry, Physical
Eryk Goldmann, Marcin Gorski, Barbara Klemczak
Summary: The paper focuses on the most important materials used for cementitious composites, their properties, and their uses, including the most relevant of the latest research in that area.
Article
Materials Science, Composites
Guangming Yang, Xu Feng, Wei Wang, Qin OuYang, Ling Liu
Summary: The study demonstrates that a woven grid composed of carbon nanotubes and graphenes can significantly enhance the interlaminar shear properties of carbon fiber reinforced plastics. It improves both mode II interlaminar fracture toughness and interlaminar shear strength, while also sensitively monitoring the delamination process in highly conductive CFRPs.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Xing Zhou, Jingrui Deng, Changqing Fang, Wanqing Lei, Yonghua Song, Zisen Zhang, Zhigang Huang, Yan Li
Summary: This study prepared carbon nanotubes/polylactic acid composites using 3D printing method, and found that the orientation of CNTs affected the properties of the composites. The 3D printing process was beneficial for improving the electrical conductivity and mechanical properties of the composites.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Inorganic & Nuclear
Lei Liu, Di Cui, Shuran Zhang, Wei Xie, Chan Yao, Na Xu, Yanhong Xu
Summary: The preparation of high-performance electrode materials for supercapacitors is currently in high demand. Covalent organic frameworks (COFs), as a new type of organic porous material with ordered pore structure, high specific surface area, and designability, show great potential as electrode materials. However, the poor conductivity of COFs limits their application in supercapacitors. In this study, a highly crystalline triazine-based covalent organic framework, DHTA-COF, was in-situ grown on a modified α-Al2O3 substrate to obtain Al2O3@DHTA-COF composites. Some of the composites maintained crystallinity, stability, and a vesicular structure. Compared to the precursors α-Al2O3 and DHTA-COF, the 50%Al2O3@DHTA-COF composite exhibited superior electrochemical properties as electrode materials for supercapacitors, with specific capacitance values 6.2 and 9.6 times higher than DHTA-COF and α-Al2O3-CHO, respectively. Additionally, the 50%Al2O3@DHTA-COF electrode material showed long-term cycling stability even after 6000 charge-discharge cycles. This study provides a reference for the development of COF-based composite materials for energy storage.
DALTON TRANSACTIONS
(2023)
Article
Polymer Science
Aswathanarayana Shubha, S. R. Manohara, Basavaraj Angadi
Summary: PEOX-PVP-TiO2 hybrid nanocomposites were prepared by reinforcement of TiO2 nanoparticles to a PEOX-PVP blend using a solution intercalation method. The nanocomposites showed good dispersion of TiO2 nanoparticles and exhibited changes in crystallite size, crystallinity, optical characteristics, and dielectric properties with increasing TiO2 concentration.
Article
Chemistry, Multidisciplinary
Hyun-Soo Ra, Jongtae Ahn, Jisu Jang, Tae Wook Kim, Seung Ho Song, Min-Hye Jeong, Sang-Hyeon Lee, Taegeun Yoon, Tea Woong Yoon, Seungsoo Kim, Takashi Taniguch, Kenji Watanabe, Young Jae Song, Jong-Soo Lee, Do Kyung Hwang
Summary: This study successfully explores the photocarrier dynamics in 2D materials, specifically in the WSe2 layer, using an asymmetric field-effect phototransistor structure. It determines the room-temperature exciton binding energy and enhances photodetection by reducing the recombination rate of photogenerated electrons and holes.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Min-Hye Jeong, Hyun-Soo Ra, Sang-Hyeon Lee, Do-Hyun Kwak, Jongtae Ahn, Won Seok Yun, JaeDong Lee, Weon-Sik Chae, Do Kyung Hwang, Jong-Soo Lee
Summary: This study proposes periodically arrayed nanopore structures (PANS) to improve the efficiency of multilayered p-WSe2/n-MoS2 phototransistors. Experiments and theoretical calculations reveal that heterojunction devices with PANS exhibit higher responsivity and detectivity, representing a significant step towards next-generation optoelectronic applications.
ADVANCED MATERIALS
(2022)
Article
Materials Science, Ceramics
N. Srinatha, K. J. Rudresh Kumar, M. R. Suresh Kumar, A. Madhu, Basavaraj Angadi
Summary: ZnAl2O4 nanocrystalline particles were successfully synthesized using Leucine as a new combustion fuel. The nanoparticles exhibited good crystallinity and stability, as well as excellent optical properties.
CERAMICS INTERNATIONAL
(2022)
Article
Physics, Applied
Sunanda T. Dadami, Sudhindra Rayaprol, Vasant Sathe, Basavaraj Angadi
Summary: This paper analyzes the influence of electric poling on the structure, magnetism, and ferroelectricity of PBFNO multiferroic. The results show that electric poling affects the crystal structure and active modes of PBFNO sample.
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
(2022)
Article
Physics, Multidisciplinary
Minku Choi, Chang Yong Park, Sungju Kim, Young Tack Lee
Summary: This study compares the Ohmic contact properties between graphene and Ag electrodes and finds that graphene electrodes show better performance. Moreover, a non-classical asymmetric transistor constructed with graphene and Ag electrodes demonstrates excellent photo-sensitivity.
JOURNAL OF THE KOREAN PHYSICAL SOCIETY
(2022)
Article
Nanoscience & Nanotechnology
Minjong Lee, Chang Yong Park, Sangjun Sim, Kimoon Lee, Young Tack Lee
Summary: This study demonstrates the design of a reconfigurable diode and logic gate function using a split-gate field-effect transistor (SG-FET) based on palladium diselenide (PdSe2) with stable ambipolar properties. This approach opens up new possibilities for future 2D material-based electronics.
ADVANCED ELECTRONIC MATERIALS
(2022)
Article
Physics, Multidisciplinary
Kumar Haunsbhavi, K. Deva Arun Kumar, Mohd Ubaidullah, Shoyebmohamad F. Shaikh, R. Venkatesh, Devarajan Alagarasan, Prashantha Murahari, Basavaraj Angadi
Summary: Semiconductor-based UV photodetectors play a crucial role in various fields, and nanostructured doped NiO thin films show good UV detection performance. Gd-doped NiO films exhibit the best responsivity, quantum efficiency, detectivity, rise time, and fall time, thanks to the doping and lattice distortion, which effectively separate charge carriers by trapping conduction band electrons with oxygen vacancies.
Article
Physics, Condensed Matter
Sunanda T. Dadami, Sudhindra Rayaprol, Vasant Sathe, Basavaraj Angadi
Summary: In this paper, we have discussed the impact of electric poling on structure, magnetism, and ferroelectricity of the 0.7PbFe0.5Nb0.5O3 - 0.3BiFeO3 (PBFN) multiferroic. The results show the presence of strong converse magnetoelectric coupling in the material, as evidenced by magnetization data and temperature-dependent Raman measurements. Electric poling improves the ferroelectric domain ordering, which has implications for spintronics research.
SOLID STATE COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Kumar Haunsbhavi, Devarajan Alagarasan, N. J. Shivaramu, H. M. Mahesh, Prashantha Murahari, Basavaraj Angadi
Summary: A nanostructured NiO thin film was prepared using the sol-gel spin-coating technique and demonstrated excellent detection capabilities for low-concentration ammonia. The film exhibited uniform spherical-shaped grains, porosity, and a small crystallite size, resulting in a remarkable response at low concentrations.
JOURNAL OF ELECTRONIC MATERIALS
(2022)
Article
Optics
Ji-Hoon Kang, Sungwon Choi, Yun Jeong Hwang, Do Kyung Hwang, Min-Chul Park
Summary: A photoelectrochemical (PEC) cell utilizes solar energy and an electrochemical reaction to produce hydrogen energy. It can function as both a hydrogen generator and an image sensor, allowing it to detect and respond to the surrounding environment without the need for a camera. The imaging performance of PEC cells is presented, and their effectiveness is confirmed through their application in integral imaging, a 3D imaging technique.
Article
Materials Science, Multidisciplinary
Seungho Song, Changsoon Choi, Jongtae Ahn, Je-Jun Lee, Jisu Jang, Byoung-Soo Yu, Jung Pyo Hong, Yong-Sang Ryu, Yong-Hoon Kim, Do Kyung Hwang
Summary: To overcome the inefficiency of the von Neumann architecture, researchers have developed an artificial optoelectronic synapse that can be triggered by optical inputs, showing both potentiation and depression characteristics. By spatiotemporally irradiating the synapse with optical pulses, the design enables the serial connection of excitatory and inhibitory synaptic phototransistors, and allows for the realization of negative synaptic weights without the need for electronic components. The artificial optoelectronic synapse is demonstrated to achieve high recognition rates (98.3%) in classifying three digits and performing image preprocessing.
Article
Materials Science, Multidisciplinary
Minjong Lee, Dongjoon Rhee, Jihyun Kim, Chang Yong Park, Min-gu Kim, Joohoon Kang, Young Tack Lee
Summary: The voice-user interface allows humans to interact with electronic devices through voice commands, providing convenient experiences in touch-free applications. This research presents a platinum/molybdenum disulfide back-to-back diodes architecture that functions as both a frequency detector and an envelope detector. The gate tunable diodes circuit shows promise for high-integration and low-power applications in future mobile electronics.
ACS MATERIALS LETTERS
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
N. Srinatha, P. Raghu, H. M. Mahesh, A. Madhu, M. R. Suresh Kumar, Basavaraj Angadi
Summary: The formation and characteristics of spin-coated films are influenced by various processing parameters. This study investigated the importance of spin rate on the structural and optical properties of transparent Zn0.95Al0.03Ni0.02O thin films deposited using the spin-coating method. The results suggest that the spin rate affects the crystallite orientation, crystallinity, and optical properties of the films.
MATERIALS TODAY-PROCEEDINGS
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
Sunanda T. Dadami, Sudhindra Rayaprol, S. K. Deshpande, Basavaraj Angadi
Summary: The multiferroic material Pb0.6Bi0.4Fe0.7Nb0.3O3 was prepared using a solid-state reaction technique. The study showed that its dielectric properties and electrical conductivity were influenced by frequency and temperature. Non-Debye relaxation processes were observed in the material, and the resistance decreased with increasing temperature, with a negative temperature coefficient of resistance.
MATERIALS TODAY-PROCEEDINGS
(2022)
