Article
Physics, Multidisciplinary
Ya-Ning Ren, Mo-Han Zhang, Chao Yan, Yu Zhang, Lin He
Summary: This study focuses on magneto-oscillations in 2D electron systems and their application in different stacked graphene layers. It demonstrates that STM can locally measure these oscillations, providing a convenient and effective method for studying such materials.
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
(2021)
Article
Thermodynamics
Yong-Mei Zhang, Mauro Antezza, Jian-Sheng Wang
Summary: The presence of interlayer interactions in twisted bilayer graphene (TBG) enhances several characteristics, including the optical and electronic properties. A series of double magic angles have been theoretically investigated in TBG. The thermal radiation from TBG can be tuned to the far infrared range by changing twist angles.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Physics, Multidisciplinary
S. D. Eder, S. K. Hellner, S. Forti, J. M. Nordbotten, J. R. Manson, C. Coletti, B. Holst
Summary: Experimental measurements on AB-stacked bilayer graphene show that the bending rigidity increases with temperature, contrary to some theoretical predictions. The data is fitted to a linear dependence to obtain a specific equation for kappa(T), which provides insight when compared to existing predictions and room temperature measurements.
PHYSICAL REVIEW LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Yanbo Xin, Qin Gao, Jiangshun Huang, Juan Gao, Xueli Geng, Hongliang Shi, Mei Wang, Zhisong Xiao, Paul K. Chu, Anping Huang
Summary: In this study, asymmetric double-layer graphene stacks with charged nanopores were constructed and the ion current rectification phenomenon was observed. The trapping behavior of cations and anions in the nanochannels was found to be optimal at a specific electric field. The underlying mechanism of the rectification effect was elucidated based on the dependence between ion current and carrier concentration.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Engineering, Chemical
Yun Dong, Weibin Hui, Fangming Lian, Yusong Ding, Zhiyuan Rui
Summary: Frictional phonon dissipation in monolayer/bilayer graphene was modeled using phonon spectra based on molecular dynamics simulations. The results indicate that the number of excited acoustic phonon modes is the primary reason for increased friction. The frequencies of flexural acoustic modes shifted to high levels as thickness increased during the sliding process, resulting in increased friction. Higher normal loads and thicker layers increase the thermal conductivity, ultimately improving the friction dissipation efficiency. Therefore, the increase in thermal conductivity is the reason for the counterintuitive decrease in interfacial temperature resulting from high friction.
Article
Nanoscience & Nanotechnology
Song Qi, Haixia Da
Summary: Bilayer graphene shows two discontinuities in the spectrum of spin shifts, which can be used to distinguish it from monolayer graphene. The magnitudes and positions of the peak and valley values in the spectrum can be controlled by tuning the Fermi energy of bilayer graphene. The enhanced spin shift in bilayer graphene using Laguerre-Gaussian beam has potential applications in precision measurements and refractive index sensors.
Article
Engineering, Electrical & Electronic
Adil Meersha, Jeevesh Kumar, Abhishek Mishra, Harsha B. Variar, Mayank Shrivastava
Summary: This experimental work presents a unique technique using carbon vacancy-assisted bilayer graphene contact to achieve record low contact resistance. The engineered carbon vacancies in the bilayer graphene contact reduce the metal-graphene interfacial distance and enhance the atomic orbital overlap, resulting in lower contact resistance. The interfacial properties and orbital interactions are investigated using density functional theory and non equilibrium Green's function based transport computations. Experimental validation using unique Kelvin probe structures with monolayer and bilayer contacts confirms the significantly reduced contact resistance, which is a record low value to date.
IEEE ELECTRON DEVICE LETTERS
(2023)
Article
Physics, Multidisciplinary
Cheng Tan, Davoud Adinehloo, James Hone, Vasili Perebeinos
Summary: The weak acoustic phonon scattering in graphene monolayer leads to high mobilities even at room temperatures. We identify the dominant role of shear phonon mode scattering on the carrier mobility in AB-stacked graphene bilayer, which is absent in monolayer graphene. The surface polar phonon scattering from a boron nitride substrate contributes significantly to the measured mobilities at elevated temperatures.
PHYSICAL REVIEW LETTERS
(2022)
Article
Materials Science, Multidisciplinary
M. S. Mrudul, Gopal Dixit
Summary: The study shows significant differences in high-harmonic generation between monolayer and bilayer graphene, with the interlayer coupling and contributions from intraband and interband transitions playing important roles. Additionally, interesting polarization and ellipticity dependencies are observed in the total harmonic spectrum of monolayer and bilayer graphene.
Article
Chemistry, Multidisciplinary
Zhi-Bin Jian, Jie Bie, Shuang Chen
Summary: Confined ammonia molecules form a stable new rhomboidal phase in graphene oxide/graphene nanosheets, showing liquid-like behavior at room temperature and high stability requiring significant strain to destroy. These rhomboidal NH3 monolayers offer diverse hydrogen-bonded networks and potential piezoelectricity for future device applications.
Article
Materials Science, Multidisciplinary
Shuang Wang, Yanhui Zhang, Dongyang Zhao, Jing Li, He Kang, Sunwen Zhao, Tingting Jin, Jiaxiang Zhang, Zhongying Xue, Ying Wang, Yanping Sui, Zhiying Chen, Songang Peng, Zhi Jin, Xinyu Liu, Jianlu Wang, Yan Chen, Guanghui Yu
Summary: Researchers have reported a new method for the rapid and controllable growth of AB-stacked bilayer MoS2, which exhibits excellent performance and broad application prospects in the field of high-performance electronics and optoelectronics.
Article
Materials Science, Multidisciplinary
Dilce Ozkendir Inanc, Cem Celebi, Umit Hakan Yildiz
Summary: This study presents a lipid bilayer-based sensor interface on SiO2 encapsulated graphene field effect transistors (GFET). The pH sensitivity of wrinkled interfaced-GFETs was found to be ten fold larger than the flat ones, attributed to thinning of the oxide layer by formation of wrinkles facilitating electrostatic gating on graphene.
Article
Multidisciplinary Sciences
Si-yu Li, Zhengwen Wang, Yucheng Xue, Yingbo Wang, Shihao Zhang, Jianpeng Liu, Zheng Zhu, Kenji Watanabe, Takashi Taniguchi, Hong-jun Gao, Yuhang Jiang, Jinhai Mao
Summary: Researchers observed an electron crystal phase and studied the coupling between strong electron correlation and nontrivial band topology in twisted monolayer-bilayer graphene using scanning tunnelling microscopy.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Muhammad Usama Arshad, Yuxiang Gan, Congjie Wei, Jiaoli Li, Chenglin Wu, Mohammad Naraghi
Summary: Mechanical properties of stacked bilayer graphene sheets (SBLG) are investigated and found to have higher fracture toughness compared to single or multilayer graphene, making them suitable for the development of flaw-resilient nanomaterials.
Article
Multidisciplinary Sciences
Meihui Wang, Ming Huang, Da Luo, Yunqing Li, Myeonggi Choe, Won Kyung Seong, Minhyeok Kim, Sunghwan Jin, Mengran Wang, Shahana Chatterjee, Youngwoo Kwon, Zonghoon Lee, Rodney S. Ruoff
Summary: Restricting the initial growth temperatures used for chemical vapour deposition of graphene on metal foils produces optimum conditions for growing large areas of fold-free, single-crystal graphene, which exhibit highly uniform transport properties.
Article
Engineering, Environmental
Qin-Xue Hu, Wei-Di Liu, Li Zhang, Wei Sun, Han Gao, Xiao-Lei Shi, Yan-Ling Yang, Qingfeng Liu, Zhi-Gang Chen
Summary: High power factor and excellent bending resistance are achieved in an in situ grown 10 mol% SWCNTs/Ag2}ySe film. The high power factor is attributed to the enhanced carrier concentration and enlarged effective mass induced by the additional interstitial Ag. Moreover, the film exhibits excellent bending resistance and can be used in a flexible thermoelectric power generator with high output power.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Fatimah Rudayni, Tika R. Kafle, Jack Waters, Kushal Rijal, Wai-Lun Chan
Summary: By using a metallic grating and zinc phthalocyanine (ZnPc) molecules, researchers have achieved temporal and spatial resolution of energy transfer from plasmon to molecular exciton through plasmon-induced resonance energy transfer mechanism. The energy transfer can occur within 30 fs over a distance of 20 nm, which is much larger than typical hot carrier transfer and molecule-to-molecule energy transfer processes. This ultrafast and long-range energy transfer channel can enhance the exciton/free carrier generation yield in semiconductor layers, even at lower photon energies.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Wenjie Xiong, Zhichao Wang, Xuemei Zhang, Chong Wang, Liangcao Yin, Yaru Gong, Qingtang Zhang, Shuang Li, Qingfeng Liu, Peng Wang, Yongsheng Zhang, Guodong Tang
Summary: A new route is proposed to minimize the lattice thermal conductivity in MnTe by introducing dense lattice distortions through Cu and Ag codoping, which leads to improved Seebeck coefficient and power factor.
Article
Nanoscience & Nanotechnology
Qingtang Zhang, Zhuoyang Ti, Yue Zhang, Pengfei Nan, Shuang Li, Di Li, Qingfeng Liu, Shaolong Tang, Suniya Siddique, Yongsheng Zhang, Binghui Ge, Guodong Tang
Summary: GeTe and its derivatives have been widely studied as promising lead-free thermoelectric materials. In this study, a new approach to minimize the thermal conductivity of GeTe was proposed by introducing an ultrafine ferroelectric domain structure and enhancing acoustic phonon scattering. Bi and Ca dopants were found to induce atomic strain disturbance and create an ultrafine ferroelectric domain structure, leading to a significantly reduced thermal conductivity. The coexistence of the ultrafine ferroelectric domain structure, large strain field, and mass fluctuation contributed to the ultralow lattice thermal conductivity and enhanced power factor in Ge0.85Bi0.09Ca0.06Te. A high ZT value of approximately 2.2 was achieved. This work demonstrates a new design paradigm for developing high-performance thermoelectric materials.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Shuai Sun, Xiao-Lei Shi, Meng Li, Ting Wu, Liangcao Yin, Dezhuang Wang, Qingfeng Liu, Zhi-Gang Chen
Summary: An ultrafast and cost-effective hot-pressing method was developed to fabricate a novel carbon-based hybrid film consisting of ionic liquid/phenolic resin/carbon fiber/expanded graphite, taking no more than 15 minutes. The hybrid film showed high flexibility due to the presence of expanded graphite, and the introduction of phenolic resin and carbon fiber improved its shear resistance and toughness. The ion-induced carrier migration contributed to a high power factor of 38.7 μWm(-1) K-2 at 500 K. Comparing with current conventional carbon-based thermoelectric composites, the hybrid film exhibited the best cost-effective property based on the power factor, fabrication time, and cost ratios. Additionally, a flexible thermoelectric device assembled with the hybrid films achieved a maximum output power density of 79.3 nW cm(-2) at a temperature difference of 20 K. This work provides a new approach for fabricating cost-effective and high-performance carbon-based thermoelectric hybrids with promising application potential.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Kushal Rijal, Stephanie Amos, Pavel Valencia-Acuna, Fatimah Rudayni, Neno Fuller, Hui Zhao, Hartwin Peelaers, Wai-Lun Chan
Summary: Periodic nanoscale potentials can trap interlayer excitons by utilizing the structure deformability of a 2D molecular crystal as a degree of freedom. The PTCDI lattice on MoS2 creates a spatial variation of molecular orbital energy, providing effective trapping sites for IXs.
Article
Chemistry, Multidisciplinary
Pavel Valencia-Acuna, Fatimah Rudayni, Kushal Rijal, Wai-Lun Chan, Hui Zhao
Summary: We report the generation of long-lived and highly mobile photocarriers in hybrid van der Waals heterostructures that consist of monolayer graphene, few-layer transition metal dichalcogenides, and the organic semiconductor F8ZnPc. Photocarriers in the heterostructures can achieve long recombination lifetimes and high mobility by transferring electrons from F8ZnPc to graphene and separating them from the holes in F8ZnPc. The use of these artificial heterostructures can enhance the performance of graphene-based optoelectronic devices.
Article
Chemistry, Multidisciplinary
Liang-Cao Yin, Wei-Di Liu, Meng Li, De-Zhuang Wang, Hao Wu, Yifeng Wang, Lixiong Zhang, Xiao-Lei Shi, Qingfeng Liu, Zhi-Gang Chen
Summary: It is found that interstitial Cu in GeTe can have synergistic effects, including strengthened phonon scattering and weakened carrier scattering, resulting in ultralow lattice thermal conductivity and high carrier mobility. By optimizing the carrier concentration, a high figure-of-merit of approximately 2.3 can be obtained in Ge0.93Ti0.01Bi0.06Te-0.01Cu, corresponding to a maximum energy conversion efficiency of approximately 10% at a temperature difference of 423 K. This study systematically investigates the doping behavior of interstitial Cu in GeTe-based thermoelectric materials and demonstrates its potential to enhance thermoelectric performance.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Li Zhang, Xingyu Liu, Ting Wu, Shengduo Xu, Guoquan Suo, Xiaohui Ye, Xiaojiang Hou, Yanling Yang, Qingfeng Liu, Hongqiang Wang
Summary: The power factor of PEDOT:PSS film can be improved by optimizing the oxidation level through a two-step post-treatment using a mixture of EG, Arg, and H2SO4. The EG dopant removes excess PSS and induces a conformational change in the PEDOT:PSS film. Arg controls the oxidation level and prevents over-oxidation during H2SO4 treatment, leading to increased S. The resulting high-performing film can be used for thermoelectric devices and shows potential applications in wearable electronics.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Jing Yuan, Xiao-Lei Shi, De-Zhuang Wang, Wei-Di Liu, Meng Li, Wenyi Chen, Qishuo Yang, Yifeng Wang, Qingfeng Liu, Zhi-Gang Chen
Summary: In this work, a new method was reported to significantly improve the thermoelectric performance of pristine Bi2Te3 polycrystals by solvothermally synthesizing Bi2Te3 crystalline microplates using mixed solutions composed of H2O and ethylene glycol (EG) as solvents. The addition of H2O increased the saturated vapor pressure of the mixed solutions and promoted the crystal growth of Bi2Te3 microplates along their in-plane directions, resulting in strengthened anisotropy of the sintered bulk materials and improved carrier mobility and electrical conductivity at room temperature. The figure of merit of the developed bulk material was significantly improved by about 167% compared to the bulk material sintered from commercial Bi2Te3 powders, indicating great potential for practical applications. This work paves a new way and fills the gap of boosting the thermoelectric performance of pristine Bi2Te3.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Chunchun Song, Xiao-Lei Shi, Lin Pan, Wei -Di Liu, Qiang Sun, Meng Li, Chunhua Lu, Qingfeng Liu, Yifeng Wang, Zhi-Gang Chen
Summary: This study utilizes SnSe as multifunctional micro/nanoinclusions to achieve higher thermoelectric performance in polycrystalline BTS. The 2D-structured SnSe reduces the average size of BTS powders and improves the anisotropy of the bulk materials, leading to enhanced carrier mobility and electrical conductivity. Introducing p-type SnSe into n-type BTS enhances the temperature range for high Seebeck coefficients, and the low lattice thermal conductivity of SnSe micro/nanoinclusions suppresses the overall thermal conductivity of the hybrid bulk materials, resulting in competitive figure-of-merit values and great potential for practical applications.
Article
Thermodynamics
Wei Sun, Wei-Di Liu, Lei Li, De-Zhuang Wang, Liang-Cao Yin, Meng Li, Xiao-Lei Shi, Qingfeng Liu, Zhi-Gang Chen
Summary: A dual-thermoelectric-liquid hybrid system is designed to optimize CPU cooling by analyzing key performance indicators and stepwise optimizing the inlet temperature and volume flow rate. The system achieves effective CPU cooling with a high coefficient of performance.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Review
Chemistry, Multidisciplinary
Hao Wu, Xiao-lei Shi, Jingui Duan, Qingfeng Liu, Zhi-Gang Chen
Summary: This review provides a comprehensive summary of the progress, challenges, and outlook for Ag2Se-based thermoelectric materials. The fundamentals of Ag2Se, including its physical properties and mechanical characteristics, are presented. Advanced strategies for enhancing the thermoelectric and mechanical properties of Ag2Se-based materials are discussed, along with the development of device designs and novel applications. Controversies, challenges, and future prospects for Ag2Se-based thermoelectrics are also addressed.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Physical
Fatimah Rudayni, Tika R. Kafle, Jack Waters, Kushal Rijal, Wai-Lun Chan
Summary: By using a model interface consisting of a metallic grating and zinc phthalocyanine (ZnPc) molecules, the energy transfer process from plasmon to molecular exciton via the plasmon-induced resonance energy transfer mechanism was resolved temporally and spatially. The energy transfer occurred within 30 fs for a distance of 20 nm, which is much larger than typical hot carrier transfer and molecule-to-molecule energy transfer processes. This ultrafast and long-range plasmon-induced energy transfer channel can boost the exciton/free carrier generation yield in semiconductor layers and extend the optical absorption to frequencies below the optical bandgap of the molecule.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Fatimah Rudayni, Kushal Rijal, Neno Fuller, Wai-Lun Chan
Summary: Despite the large binding energy of CT excitons in type-II organic/2D heterostructures, it has been found that these excitons can spontaneously dissociate into free carriers with a long lifetime, which is driven by entropy gain.
MATERIALS HORIZONS
(2023)
Article
Chemistry, Physical
Jie Sheng, Jingshan He, Dun Ma, Yuanbo Wang, Wu Shao, Tian Ding, Ronghao Cen, Jingwen He, Zhihao Deng, Wenjun Wu
Summary: This study presents an innovative approach to improve the photovoltaic conversion characteristics and stability of perovskite solar cells through carbon electrode interface modification. By in-situ polymerization and carbonization on the surface of nano-graphite, a dendritic structure carbon electrode is formed, reducing the work function and aligning the energy levels with perovskite. This leads to improved charge and hole collection efficiency, resulting in increased photovoltaic conversion efficiency. Furthermore, the modified carbon electrode-based perovskite solar cells exhibit exceptional stability, maintaining high efficiency even without encapsulation.
Article
Chemistry, Physical
Guodong Shi, Jian Song, Xiaoxiao Tian, Tongtong Liu, Zhanjun Wu
Summary: This study demonstrates the improvement of mechanical properties and reduction of coefficient of thermal expansion (CTE) in graphene oxide (GO)/epoxy (EP) nanocomposites by enhancing the interface between GO and EP through functionalization and incorporating rigid-flexible interphases. The results reveal that the SiO2-PEA-GO hybrid exhibits better strengthening and toughening effects, as well as lower CTE, compared to the PEA-GO hybrid due to the presence of rigid-flexible interfaces with higher bonding strength and better energy dissipation mechanisms. Additionally, the nanocomposites with longer polyetheramine (PEA) molecules in the rigid-flexible interphases demonstrate higher strength and toughness, while maintaining a lower CTE. This work provides a promising strategy for constructing adjustable flexible-rigid interfacial structures and offers potential in developing GO/EP nanocomposites with high mechanical properties and low CTE.
Article
Chemistry, Physical
Rafal Janus, Sebastian Jarczewski, Jacek Jagiello, Piotr Natkanski, Mariusz Wadrzyk, Marek Lewandowski, Marek Michalik, Piotr Kustrowski
Summary: In this study, a facile procedure for the synthesis of CMK-1 and CMK-2 carbon replicas was developed. The method utilizes basic laboratory equipment and a renewable carbon source, and operates under mild conditions. The resulting carbon mesostructures exhibit exquisite replication fidelity and structural homogeneity, making them suitable for applications in various fields.
Article
Chemistry, Physical
Anqi Wang, Connor J. MacRobbie, Alex Baranovsky, Jean-Pierre Hickey, John Z. Wen
Summary: In this study, a novel polymer-free nanothermite aerogel with a wide range of nanoparticle loading was fabricated via a new additive manufacturing process. The SEM images showed a unique porous structure formed by extra thin rGO sheets, wrapping individual nanothermite clusters. The DSC-TGA results and high-speed combustion videos confirmed the enhanced energetic performance of the printed specimen.
Article
Chemistry, Physical
Wanze Wu, Misheng Zhao, Shiwei Miao, Xiaoyan Li, Yongzhong Wu, Xiao Gong, Hangxiang Wang
Summary: Superhydrophobic solar-driven interfacial evaporator is an energy-efficient technology for seawater desalination, which is easily fabricated using robust photothermal superhydrophobic coating and substrate. The created bifunctional coating on the melamine sponge substrate shows stable and highly efficient photothermal and superhydrophobic performance for seawater desalination. This superhydrophobic solar-driven interfacial evaporator is expected to have wide applications in seawater desalination.
Article
Chemistry, Physical
Zichen Xiang, Zhi Song, Tiansheng Wang, Menghang Feng, Yijing Zhao, Qitu Zhang, Yi Hou, Lixi Wang
Summary: This study presents a co-electrospinning synthesis strategy to fabricate lightweight and porous Co@C composite nanofibres with wideband microwave attenuation capacity. The addition of MOF-derived Co additives enhances the low-frequency absorption performance.
Article
Chemistry, Physical
J. Snow, C. Olson, E. Torres, K. Shirley, E. Cazalas
Summary: This study investigates the use of a perovskite-based graphene field effect transistor (P-GFET) device for X-ray detection. The sensitivity and responsivity of the device were found to be influenced by factors such as X-ray tube voltage, current, and source-drain voltage. Simulation experiments were conducted to determine the dose rate and energy incident on the device during irradiation.
Article
Chemistry, Physical
Zuzana Jankovska, Lenka Matejova, Jonas Tokarsky, Pavlina Peikertova, Milan Dopita, Karolina Gorzolkova, Dominika Habermannova, Michal Vastyl, Jakub Belik
Summary: This study provides new insights into microwave-assisted pyrolysis of scrap tyres, demonstrating that it can produce microporous carbon black with potential application in xylene adsorption. Compared to conventional pyrolysis, microwave pyrolysis requires less time and energy while maintaining similar adsorption capacity.
Article
Chemistry, Physical
Max Bommert, Bruno Schuler, Carlo A. Pignedoli, Roland Widmer, Oliver Groning
Summary: A detailed understanding of the interaction between molecules and two-dimensional materials is crucial for incorporating functional molecular films into next-generation 2D material-organic hybrid devices. This study compares the energy level alignment of different-sized fullerenes on a Moire superstructure and finds that C-84 fullerenes can be either neutral or negatively charged depending on slight variations of the electrostatic potential. This discovery suggests a new path to achieve ambipolar charge transfer without overcoming the electronic gap of fullerenes.
Article
Chemistry, Physical
Yuanjing Cheng, Xianxian Sun, Ye Yuan, Shuang Yang, Yuanhao Ning, Dan Wang, Weilong Yin, Yibin Li
Summary: The dual-structure aerogel (GS) consisting of flexible silica fibers and graphene honeycomb structures exhibits excellent resilience, flexibility, and reliability. It also shows remarkable wave absorbing performance, making it an ideal candidate for microwave absorption applications such as flexible electronics and aerospace.
Article
Chemistry, Physical
Shuyu Fan, Yinong Chen, Shu Xiao, Kejun Shi, Xinyu Meng, Songsheng Lin, Fenghua Su, Yifan Su, Paul K. Chu
Summary: Graphene coatings are promising solid lubrication materials due to their mechanical properties. This study presents a new method for in situ deposition of high-quality graphene coatings on hard substrates using NiCo solid solution and competitive reaction strategies. The graphene coating deposited on substrates with deep NiCo solid solution demonstrates superior low-friction and durability.
Article
Chemistry, Physical
Mengdi Wang, Sanyin Qu, Yanling Chen, Qin Yao, Lidong Chen
Summary: The improved thermoelectric properties of conducting polymers are achieved by selectively capturing single-walled carbon nanotubes (SWNTs) in a conducting polymer film, leading to increased carrier mobility and reduced thermal conductivity. The resulting composite film exhibits significantly higher electrical conductivity and lower thermal conductivity compared to films with a mixture of SWNTs. This work provides a convenient and efficient method to enhance the thermoelectric properties of conducting polymers.
Review
Chemistry, Physical
Heng Wei, Weihua Li, Kareem Bachagha
Summary: This article reviews the research progress of carbon nanotube-based microwave absorbing materials (MAMs) in recent years, covering the fundamental theory, design strategies, synthesis methods, and future development directions.
Article
Chemistry, Physical
Chenguang Shi, Junlong Huang, Zongheng Cen, Tan Yi, Shaohong Liu, Ruowen Fu
Summary: This study developed a high-performance Li metal host material, which achieved dendrite-free Li deposition with a low nucleation overpotential and high Coulombic efficiencies through the combination of Ti3C2-g-PV4P sheets and Ag nanoparticles. The full cells assembled with the Li@host anode and LiFePO4 cathode exhibited high discharge capacity and excellent cycling stability, demonstrating a perspective design for future energy storage devices.
Article
Chemistry, Physical
Tomotaro Mae, Kentaro Kaneko, Hiroki Sakurai, Suguru Noda
Summary: A new partial prelithiation method for SiO/C-CNT electrodes was developed, which showed reduced irreversible capacity and achieved high energy densities with good reversibility. The method allows for precise control of the degree of prelithiation and is applicable to various chemistries.