TaS nanolayers with reduced dimensionality show interesting physics, such as a gate-tunable phase transition and enhanced superconductivity, among others. Here, a solution-based strategy to fabricate a large-area foil of hybrid TaS /organic superlattice, where [TaS ] monolayers and organic molecules alternatively stack in atomic scale, is proposed. The [TaS ] layers are spatially isolated with remarkably weakened interlayer bonding, resulting in lattice vibration close to that of TaS monolayers. The foil also shows excellent mechanical flexibility together with a large electrical conductivity of 1.2 × 10 S cm and an electromagnetic interference of 31 dB, among the highest values for solution-processed thin films of graphene and inorganic graphene analogs. The solution-based strategy reported herein can add a new dimension to manipulate the structure and properties of 2D materials and provide new opportunities for flexible nanoelectronic devices.
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http://dx.doi.org/10.1002/smll.201901901 | DOI Listing |
Soft Matter
January 2025
Faculty of Chemistry, Ho Chi Minh City University of Science, Vietnam National University, Ho Chi Minh City, 227 Nguyen Van Cu Street, Ward 4, District 5, Ho Chi Minh City 70000, Vietnam.
Surface-enhanced Raman spectroscopy (SERS) is a highly sensitive analytical technique with excellent molecular specificity. However, separate pristine nanoparticles produce relatively weak Raman signals. It is necessary to focus on increasing the "hot-spot" density generated at the nanogaps between the adjacent nanoparticles (second-generation SERS hotspot), thus significantly boosting the Raman signal by creating an electromagnetic field.
View Article and Find Full Text PDFACS Omega
December 2024
2D Materials and Devices Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India.
The demand for compact energy storage devices necessitates the development of high-performance anode materials directly integrated with current collectors, minimizing or eliminating the need for binders or additives. With its layered structure and high theoretical capacity, molybdenum disulfide (MoS) is regarded as a promising anode material for lithium-ion batteries (LIBs). Here, we report chemical vapor deposition (CVD) growth of self-integrated, vertically aligned MoS nanosheets with embedded molybdenum dioxide (MoO) directly on a molybdenum foil and explore its potential as an anode material for LIBs.
View Article and Find Full Text PDFSmall Methods
December 2024
Department of Chemistry (BK21 FOUR), Research Institute of Advanced Chemistry, Gyeongsang National University, Jinju, 52828, Republic of Korea.
ACS Appl Mater Interfaces
November 2024
Center of Excellence on Advanced Materials for Energy Storage, Department of Materials Science, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
Aqueous zinc-ion batteries promise good commercial application prospects due to their environmental benignity and easy assembly under atmospheric conditions, positioning them as a viable alternative to lithium-ion batteries. However, some inherent issues, such as chaotic zinc dendrite growth and inevitable side reactions, challenge the commercialization progress. In this work, we imprint highly ordered zinc microwall arrays to regulate the electric field toward uniform Zn deposition.
View Article and Find Full Text PDFChemistry
January 2025
School of Materials Electronics and Energy Storage, Zhongyuan University of Technology, Henan, 451191, P. R. China.
Achieving high rate performance without compromising energy density has always been a critical objective for zinc-ion hybrid supercapacitors (ZHSCs). The pore structure and surface properties of carbon cathode materials play a crucial role. We propose utilizing a hybrid particle size (20 and 40 nm) magnesium oxide templates to regulate the pore structure of nitrogen-doped porous carbon derived from the soybean isolate.
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