Review
Chemistry, Multidisciplinary
Jing Liu, Pei Li, Hongsheng Zheng
Summary: Research on thermal transport in 2D materials, particularly focusing on high thermal conductivity in graphene, has been boosted. However, large discrepancies in thermal properties obtained from experiments require careful examination due to various factors. Further improvements in thermal characterization techniques are necessary for investigating energy transport in 2D materials.
Article
Chemistry, Physical
Shu-Hsien Chen, Sih-Wei Chang, Hsuen-Li Chen
Summary: This study is the first attempt to characterize the quality, defects, and strain of as-grown monolayer transition metal dichalcogenide (TMDC)-based 2D materials through exciton anisotropy. The use of a simple ellipsometric parameter allows for more sensitive detection of slight changes in the quality and strain of monolayer TMDC films.
Article
Materials Science, Multidisciplinary
Siyan Dong, Xiang Zhang, S. Shiva P. Nathamgari, Andrey Krayev, Xu Zhang, Jin Wook Hwang, Pulickel M. Ajayan, Horacio D. Espinosa
Summary: In this study, a transfer method based on wettability contrast was developed, which enabled high sample selectivity and precise positioning of transferred materials. The quality and integrity of 2D materials and interfaces resulting from the transfer process were characterized, and nanoscale heterogeneities in the interfaces were revealed, providing insights for further improvement of the transfer technique.
Article
Chemistry, Multidisciplinary
Mariana C. F. Costa, Valeria S. Marangoni, Maxim Trushin, Alexandra Carvalho, Sharon X. Lim, Hang T. L. Nguyen, Pei Rou Ng, Xiaoxu Zhao, Ricardo K. Donato, Stephen J. Pennycook, Chorng H. Sow, Konstantin S. Novoselov, Antonio H. Castro Neto
Summary: 2D electrolytes are a novel class of materials that exhibit stimuli-responsive behavior to environmental conditions, with controllable chemical and physical properties through external factors. They can undergo reversible morphological transitions from 2D to 1D as a function of pH, showing potential for various applications.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Analytical
Eugenia Stamatopoulou, Manto Sotiropoulou, Maria Karoglou, Asterios Bakolas
Summary: Contemporary artists experimented with various techniques, including photography and mechanical methods. The study focused on a series of artworks by Nikos Kessanlis, analyzing the materials used and the overall condition of the panels. The research identified the use of alternative printing techniques and the impact of environmental conditions on the deterioration of the artwork.
MICROCHEMICAL JOURNAL
(2021)
Review
Nanoscience & Nanotechnology
Xun Zhao, Zhipu Li, Shiru Wu, Min Lu, Xiaoji Xie, Da Zhan, Jiaxu Yan
Summary: This review provides a comprehensive overview of recent developments in Raman spectroscopy research on anisotropic materials, including lattice orientation identification, temperature dependence, interlayer coupling, electron-phonon interaction, thickness dependence, and high-pressure phase transition. Raman spectroscopy plays a crucial role as a practical, quick, and nondestructive tool in studying anisotropic materials.
ADVANCED ELECTRONIC MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Sharidya Rahman, Juan F. Torres, Ahmed Raza Khan, Yuerui Lu
Summary: Magnetism in two dimensions, particularly in atomically thin 2D materials, has led to significant advances in technology such as supercomputing and data storage. Recent attention has focused on antiferromagnetism in 2D materials, which have unique characteristics despite having zero net magnetic moment. Various theoretical and experimental approaches have been proposed to efficiently probe and modulate the magnetic states in such systems.
Article
Chemistry, Multidisciplinary
Sourav Garg, J. Pierce Fix, Andrey Krayev, Connor Flanery, Michael Colgrove, Audrey R. Sulkanen, Minyuan Wang, Gang-Yu Liu, Nicholas J. Borys, Patrick Kung
Summary: The study characterizes the interface in lateral heterostructures of single-layer MoS2/WS2 using TERS, showing variations in size and composition. Nanoscale imaging of the Raman spectra reveals the evolution of the interface.
Review
Chemistry, Multidisciplinary
Jan Krajczewski, Robert Ambroziak, Andrzej Kudelski
Summary: Surface-Enhanced Raman Scattering (SERS) refers to the phenomenon where the efficiency of generating Raman spectra by molecules adsorbed on some substrates is many orders of magnitude larger than those that are not adsorbed. Significant advances have been made in utilizing nanostructured non-metallic materials as SERS substrates, showing great potential for future applications.
Article
Chemistry, Applied
Qingmin Chen, Yunfei Xie, Hang Yu, Yahui Guo, Weirong Yao
Summary: Freeze-thaw accelerated the colour deterioration of beef with the increase of colour b* and the decrease of colour a* values. The maximum exudate loss reached 22% after the seventh freeze-thaw. A strong correlation between the transversal relaxation time T-21 and thawing loss may mean that T-21 water contributed to the exudate loss during freeze-thaw. Competitive adaptive reweighted sampling-partial least square (CARS-PLS) yielded the best prediction in thawing loss of frozen/thawed beef with correlation coefficients of prediction (R-p) of 0.971, and root mean square error of prediction (RMSEP) of 1.436. Uninformative variable elimination-partial least squares (UVE-PLS) showed good prediction effects on colour values (R-p = 0.932 - 0.994) and water content (R-p = 0.928, RMSEP = 0.582) of frozen/thawed beef. Therefore, this work demonstrated that Raman spectroscopy coupled with multivariate calibration has a good ability for nondestructive prediction in colour and water-related properties of frozen/thawed beef.
Article
Chemistry, Physical
Ahmed M. Fallatah, Zeid O. Owidah, Khaled M. Elsabawy
Summary: This study introduces a simple strategy to synthesize a non-crystalline porous 2D-flakes of Mg(II)-methyl 3,5-dinitro-salicylate complex with a large BET surface area of approximately 788 m^2g^-1 through microwave assisted hydro-complexation. The proposed structure was confirmed through structure visualization and density functional theory calculations, showing good thermal stability and hydrogen loading performance of the produced Mg-complex.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Multidisciplinary
Yang Pan, Dietrich R. T. Zahn
Summary: This research investigates the interlayer coupling in 2D transition metal dichalcogenides (TMDCs) through Raman, photoluminescence, and atomic force microscopy studies. The study found that the B-2g vibrational mode appears after strong coupling, acting as a Raman fingerprint of interlayer coupling in 2D TMDCs.
Article
Chemistry, Multidisciplinary
Sebastian Lukas, Oliver Hartwig, Maximilian Prechtl, Giovanna Capraro, Jens Bolten, Alexander Meledin, Joachim Mayer, Daniel Neumaier, Satender Kataria, Georg S. Duesberg, Max C. Lemme
Summary: Platinum diselenide (PtSe2) is a 2D material known for its exceptional electronic and piezoresistive properties, and can be grown at low temperatures in a scalable manner. The nanocrystalline structure of PtSe2 thin films grown using thermally assisted conversion (TAC) was investigated for its correlation with electronic and piezoresistive properties. The findings suggest that variations in crystallite size and orientation have a strong impact on the electronic and piezoresistive properties of the films, offering potential for tuning and optimizing PtSe2 properties for various applications.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Preeti Lata Mahapatra, Raphael Tromer, Prafull Pandey, Gelu Costin, Basudev Lahiri, Kamanio Chattopadhyay, P. M. Ajayan, Ajit K. Roy, Douglas S. Galvao, Partha Kumbhakar, Chandra Sekhar Tiwary
Summary: This work demonstrates the synthesis and characterization of ultrathin metal oxide, biotene, using liquid-phase exfoliation from abundant biotite. The atomically thin biotene exhibits a flexoelectric response for energy harvesting and shows increased response in magnetic fields and thermal heating. The synthesis of 2D metal-oxide biotene suggests great potential for future energy generation and harvesting applications.
Article
Chemistry, Multidisciplinary
Shasha Zhao, Huiliu Wang, Lixin Niu, Wenqi Xiong, Yunxu Chen, Mengqi Zeng, Shengjun Yuan, Lei Fu
Summary: Surface-enhanced Raman scattering (SERS) based on 2D semiconductors has rapidly advanced, and 2D gallium nitride (GaN) with highly polar Ga-N bonds is demonstrated to be a sensitive SERS platform due to strong dipole-dipole interactions and abundant density of states near its Fermi level.
