Article
Physics, Applied
Taku Goto, Kazuto Hatakeyama, Tsuyohito Ito, Kenichi Inoue, Yukiya Hakuta, Yoshiki Shimizu, Kazuo Terashima
Summary: A chemical-free method has been developed to prepare large h-BN nanosheets (BNNSs) without reducing their sheet size. This method, called cavitation-bubble plasma, utilizes plasma with cavitation bubbles in water to exfoliate h-BN and significantly improves the exfoliation yield.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
M. Arslan Shehzad, Yea-Shine Lee, Matthew Cheng, Dmitry Lebedev, Alexander C. Tyner, Paul Masih Das, Zhangyuan Gao, Pallab Goswami, Roberto dos Reis, Mark C. Hersam, Xinqi Chen, Vinayak P. Dravid
Summary: Transition metal dichalcogenides (TMDs) are well-known for their layered structure and tunable functional properties. In this study, a new class of copper-based chalcogenides, Cu2X, are thoroughly reported for their synthesis and properties. These Cu2X compounds exhibit thickness-dependent phonon signatures and preferential growth in lattice-matched layers, with metallic properties at room temperature transitioning to semiconducting behavior at low temperatures, corroborating with band structure calculations. The findings suggest that Cu2Te could be a versatile candidate for various applications ranging from photovoltaics and sensors to nanoelectronics.
Article
Chemistry, Multidisciplinary
Sunghun Lee, Linh Truong, Myoung-Jae Lee, Seung-Hyun Chun
Summary: Two approaches for the exfoliation of SnSe2 bulk crystals were reported in this study - electrochemical and mechanical methods. High quality single crystalline flakes were obtained from both methods, showing distinct thickness and lateral size distributions. Mechanical exfoliation produced SnSe2 flakes with peculiar behavior in photocurrent measurements.
CRYSTAL GROWTH & DESIGN
(2021)
Article
Chemistry, Multidisciplinary
Junlei Qi, Yongping Dai, Chen Ma, Chengxuan Ke, Wenbin Wang, Zongxiao Wu, Xiang Wang, Kai Bao, Yue Xu, Haoxin Huang, Lingzhi Wang, Jingkun Wu, Guangfu Luo, Ye Chen, Zhaoyang Lin, Qiyuan He
Summary: A surfactant-free liquid-phase synthesis method for high-quality 2D tellurium has been developed, and a unique growth mechanism based on atomic escape and guided 2D growth in the liquid phase has been proposed. The as-grown 2D tellurium nanosheets exhibit excellent properties and show potential for various applications.
ADVANCED MATERIALS
(2023)
Article
Multidisciplinary Sciences
Zhiping Jin, Hailong Fan, Toshiya Osanai, Takayuki Nonoyama, Takayuki Kurokawa, Hideki Hyodoh, Kotaro Matoba, Akiko Takeuchi, Jian Ping Gong, Miki Fujimura
Summary: This study developed a water-soluble polymer that mimics thrombus formation for endovascular embolization. The polymer shows electrostatic adhesion with blood substances and does not adhere to the catheter or block the port during injection.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Materials Science, Multidisciplinary
Dong Wang, Zegao Wang, Zhihao Yang, Shaoyuan Wang, Chao Tan, Lei Yang, Xin Hao, Zungui Ke, Mingdong Dong
Summary: The study presents a damage-free double exposure method for the fabrication of high-performance 2D semiconductor devices with ultra-clean and intrinsic metal-semiconductor interfaces.
MATERIALS TODAY PHYSICS
(2022)
Article
Nanoscience & Nanotechnology
Yi Chen, Biao Ma, Gangsheng Chen, Jin Zhang, Dezhi Feng, Wei Tian, Taiming Zhang, Chao Zhao, Fei Rong, Hong Liu
Summary: Thin-film metal conductors based on liquid metals are widely used in high-performance conformable electronics due to their high conductivity and stretchability. Breakup-free liquid metal thin films can be created by electrochemically oxidizing solid metal films, which can maintain their structural integrity on various substrates and achieve conformal attachment. Enhanced electrochemical oxidation can also result in the formation of structure color on the film surface.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Jing Zhong, Zhixing Wang, Siwu Wang, Xinhai Li, Huajun Guo, Jiexi Wang, Guochun Yan
Summary: In this study, an ionic liquid with a long aliphatic chain is introduced as an electrostatic shielding additive in the electrolyte. The redistribution of lithium ions on the surface of lithium metal suppresses the growth of dendrites and improves the cycling performance.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Jin Xiang, Shulei Li, Zhibo Sun, Jingdong Chen, Lei Chen, Mingcheng Pangmai, Guangcan Li, Sheng Lan
Summary: Gallium (Ga) is a promising material in plasmonics due to its changeable material phase, tunable plasmon resonances, and remarkable chemical stability. Gallium oxide (Ga2O3) nanoparticles doped with liquid Ga nanodots, fabricated by laser-induced oxidation, exhibit efficient white light emission with a high quantum efficiency. The presence of Schottky barriers and hotspots in Ga/Ga2O3 nanoparticles enhances the quantum efficiency, showing potential applications in nanoscale light sources and data storage devices.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Anastasios Gotzias, Elena Tocci, Andreas Sapalidis
Summary: In this study, monolayer graphene is produced at significant yields through liquid phase exfoliation of graphites. Molecular simulation studies using decoupling simulations and umbrella sampling methods provide new insights into the exfoliation process. Both methods show highly consistent free energy results, indicating efficient minimization of nonequilibrium work during the peeling process.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Biochemistry & Molecular Biology
Yanwei Wang, Dongxin Xiang, Siyuan Chen, Guangcan Yang
Summary: In this study, the regulation of Liquid-liquid Phase Separation (LLPS) in polypeptides with repetitive proline and arginine (PR) sequences was investigated. It was found that higher salt concentrations are required for the LLPS of longer PR peptides. The experiment also showed that LLPS in peptide systems is driven by both hydrophobicity and electrostatic interactions.
Article
Chemistry, Physical
Fatemeh Koohestani, Samahe Sadjadi
Summary: A new strategy is proposed to enhance the catalytic activity of cross-linked chitosan beads by functionalizing them with vinyl and polymerizing them with 1-vinyl-3-butylimidazolium bromide to create a polyionic liquid on the beads. The resulting composite serves as a metal-free catalyst for various organic transformations with high efficiency and recyclability. Comparative studies show that the activity of this composite is superior to that of cross-linked bead and polyionic liquid.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Maksim R. Sokolov, Konstantin A. Tumbinskiy, Alexandra Zvyagina, Ivan N. Senchikhin, Alexey A. Averin, Alexey E. Aleksandrov, Alexey R. Tameev, Alexander A. Ezhov, Maria A. Kalinina
Summary: A new liquid exfoliation method using a hot solution of 2-methylimidazole has been developed for the rapid fabrication of 1-2 nm-thick MoS2 nanoflakes. This method enables the production of stable MoS2 hydrosols with narrow size distribution and strong aggregation-dependent luminescence. The method offers an affordable, experimentally simple, and ecology-friendly alternative for fabricating MoS2 nanosheets with potential applications.
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Min Sup Choi, Myeongjin Lee, Tien Dat Ngo, James Hone, Won Jong Yoo
Summary: The study reveals a novel technique of chemical-free doping in 2D material MoTe2, achieving p- and n-doping effects through annealing and electron beam irradiation. This opens up new research avenues in fabricating CMOS devices.
ADVANCED ELECTRONIC MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Keith D. Hillaire, Praneshnandan Nithyanandam, Minyung Song, Sahar Rashid Nadimi, Abolfazl Kiani, Michael D. Dickey, Karen E. Daniels
Summary: This paper presents a suite of techniques to measure the electrical and interfacial properties of room-temperature liquid eutectic gallium indium (EGaIn) as a function of applied electric potential. The study provides new insights into the mechanisms that cause the significant decrease in interfacial tension. A key finding is the hysteresis behavior of the interfacial tension with lowering applied potential. The authors combine these observations with electrochemical impedance spectroscopy to evaluate the changes in interfacial tension arising from chemical, electrical, and mechanical changes on the interface.
ADVANCED FUNCTIONAL MATERIALS
(2023)
