Article
Chemistry, Physical
Haoxuan Ding, Xin Zhang, Bosheng Li, Yitao Wang, Chunqiu Xia, Haoyu Zhao, Hualin Yang, Ying Gao, Xiaorui Chen, Jianzhi Gao, Minghu Pan, Quanmin Guo
Summary: This study demonstrates the synthesis of 2D van der Waals supramolecular structures through self-assembled cocrystallization on Au(111) surface. The formation of molecular frameworks entirely dependent on van der Waals interactions allows for the creation of diverse stable phases through delicate manipulation of molecular conformation. This innovative integration of van der Waals interaction provides new avenues for developing supramolecular patterns characterized by their adaptable bonding.
Article
Biotechnology & Applied Microbiology
Zhang Yi, Yu Hongda, Sun Mengdi, Xu Yong
Summary: This paper presents a hybrid swarming algorithm that combines Ant Colony Optimization and Physarum Polycephalum Algorithm, and introduces the use of Van Der Waals force in the pheromone update mechanism. The improved algorithm prevents premature convergence into local optima and has demonstrated excellent accuracy and convergence time in simulations. Comparison with other advanced algorithms also indicates its superior performance. The robustness and versatility of the hybrid algorithm are further verified using the capitals of 35 Asian countries.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Kenan Zhang, Changchun Ding, Baojun Pan, Zhen Wu, Austin Marga, Lijie Zhang, Hao Zeng, Shaoming Huang
Summary: This study investigates the growth mechanisms of 2D van der Waals heterostructures using a custom-built system and identifies a new growth mode with different rate and morphology. A model is proposed to explain the differences in morphologies and growth rates of the two modes. The findings from a range of material combinations may benefit the synthesis of other 2D heterostructures with controlled properties for future device applications.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Yuri Shakhman, Ilan Shumilin, Daniel Harries
Summary: To cope with stress induced by high salinity and hydrostatic pressure, marine animals accumulate osmolytes. This study focuses on the mechanism of urea's action on lipid membranes and its interaction with trimethylamine N-oxide (TMAO). It is found that urea weakens the van der Waals attraction between bilayers and the effects of urea and TMAO are largely additive. This research is important in understanding the role of osmolytes in lipid adhesion and fusion.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Review
Chemistry, Multidisciplinary
Xiangdong Guo, Wei Lyu, Tinghan Chen, Yang Luo, Chenchen Wu, Bei Yang, Zhipei Sun, F. Javier Garcia de Abajo, Xiaoxia Yang, Qing Dai
Summary: 2D monolayers can be vertically stacked in van der Waals heterostructures to support a wide range of confined polaritons. This offers advantages in terms of controlling the constituent layers, stacking sequence, and twist angles. These heterostructures have extended the performance and functions of polaritons, and potential applications include nanophotonic integrated circuits.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Islay O. O. Robertson, Sam C. C. Scholten, Priya Singh, Alexander J. J. Healey, Fernando Meneses, Philipp Reineck, Hiroshi Abe, Takeshi Ohshima, Mehran Kianinia, Igor Aharonovich, Jean-Philippe Tetienne
Summary: Detecting magnetic noise from small quantities of paramagnetic spins is achieved using spin defects in hexagonal boron nitride (hBN). Negatively charged boron vacancy defects are created in ultra-thin hBN nanoflakes, and the longitudinal spin relaxation time (T1) is measured. By decorating the dry hBN nanopowder with paramagnetic Gd3+ ions, a clear T1 quenching under ambient conditions is observed, indicating the presence of added magnetic noise. Spin measurements, including T1 relaxometry, can also be performed using solution-suspended hBN nanopowder. These findings demonstrate the potential and versatility of hBN quantum sensors for various sensing applications and pave the way towards a truly 2D, ultrasensitive quantum sensor.
Article
Chemistry, Multidisciplinary
Tae Keun Yun, Yangjin Lee, Min Je Kim, Jeongwoo Park, Donghee Kang, Seongchan Kim, Young Jin Choi, Yeonjin Yi, Bonggeun Shong, Jeong Ho Cho, Kwanpyo Kim
Summary: The research demonstrates that black phosphorus templates can induce highly oriented assembly of C-60 molecular crystals, and lithography-free fabricated C-60/BP electronic devices exhibit ideal electrical properties. The corresponding vertical vdW transistors show high photoresponsivity and fast response time under visible light illumination.
Article
Multidisciplinary Sciences
A. J. Sternbach, S. H. Chae, S. Latini, A. A. Rikhter, Y. Shao, B. Li, D. Rhodes, B. Kim, P. J. Schuck, X. Xu, X-Y Zhu, R. D. Averitt, J. Hone, M. M. Fogler, A. Rubio, D. N. Basov
Summary: Layered crystals, such as tungsten diselenide, can exhibit unconventional optical properties that allow for the propagation of subdiffractional waveguide modes with hyperbolic dispersion. This study demonstrates optically induced hyperbolicity in WSe2 and explores the role of quantum transitions of excitons in the observed polaritonic response.
Review
Physics, Multidisciplinary
Chunli Tang, Laith Alahmed, Muntasir Mahdi, Yuzan Xiong, Jerad Inman, Nathan J. McLaughlin, Christoph Zollitsch, Tae Hee Kim, Chunhui Rita Du, Hidekazu Kurebayashi, Elton J. G. Santos, Wei Zhang, Peng Li, Wencan Jin
Summary: The discovery of atomic monolayer magnetic materials has led to intense research in the field of two-dimensional van der Waals (vdW) materials. This field has witnessed the emergence of a variety of 2D vdW magnetic compounds with unique properties, and has explored the applications of spintronics and optoelectronics. The control of spin dynamics is crucial for designing ultrafast spintronic devices, and ferromagnetic resonance (FMR) provides a direct method to study magnetic excitations and key parameters of magnetic properties.
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS
(2023)
Article
Physics, Applied
Hiromu Hamasaki, Kaori Hirahara
Summary: The van der Waals cohesive forces between two carbon nanotubes were studied experimentally using transmission electron microscopy. The contact forces were determined by measuring the deflection and Young's modulus of the nanotubes. The cohesive forces at cross-contacts ranged from 1.7 to 8.5 nN and increased with the diameter of the nanotubes. The closed cap of the nanotube exhibited a nine times larger cohesive force compared to the sidewall.
APPLIED PHYSICS EXPRESS
(2023)
Article
Nanoscience & Nanotechnology
Mahmoud el-Attar, Nageh K. Allam
Summary: This study discusses the importance of enabling van der Waals forces and associated challenges during the simulation of 1T polymorph, using two commonly used ionic relaxation methods and developing a new conversion algorithm to better understand the results.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2022)
Review
Chemistry, Multidisciplinary
Hui-Lei Hou, Cosimo Anichini, Paolo Samori, Alejandro Criado, Maurizio Prato
Summary: In the past 15 years, 2D materials have revolutionized materials science and become powerful components for high-performance chemical sensors. By forming van der Waals heterostructures (VDWHs), the individual drawbacks of 2D materials can be overcome, leading to superior sensitivities, selectivity, and stability. This review discusses the latest developments in chemical sensors based on VDWHs of 2D materials, including sensing mechanisms and future directions with potential impact in environmental sciences and biomedical applications.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Lijuan Niu, Yuyin Li, Mei Zhao, Zhenjing Liu, Mengjia Zhang, Changchun Ding, Zhenjun Dou, Yihong She, Kenan Zhang, Zhengtang Luo, Lijie Zhang, Shun Wang
Summary: This study reports a van der Waals template-assisted growth method for 2D crystals, which reduces the growth temperature by up to 35% compared to traditional vapor deposition. The low-temperature growth process is attributed to the low surface diffusion barrier of precursors on van der Waals surfaces. Additionally, the grown 2D crystals can be easily peeled off and transferred to other substrates for applications.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Fang Wang, Tao Zhang, Runzhang Xie, Anna Liu, Fuxing Dai, Yue Chen, Tengfei Xu, Hailu Wang, Zhen Wang, Lei Liao, Jianlu Wang, Peng Zhou, Weida Hu
Summary: With the continuous advancement of nanofabrication techniques and the discovery of useful manipulation mechanisms in high-performance applications, the morphology and usage of junction devices in photodetectors have undergone fundamental revolution. New types of photodetectors, not relying on any junction, have emerged, offering high signal-to-noise ratio and multidimensional modulation. This review focuses on a unique category of material systems, van der Waals materials, which support novel high-performance photodetectors beyond junctions.
ADVANCED MATERIALS
(2023)
Article
Multidisciplinary Sciences
Long Zhang, Fengcheng Wu, Shaocong Hou, Zhe Zhang, Yu-Hsun Chou, Kenji Watanabe, Takashi Taniguchi, Stephen R. Forrest, Hui Deng
Summary: Controlling matter-light interactions with cavities is crucial in modern science and technology. By integrating MoSe2-WS2 heterobilayers in a microcavity, cooperative coupling between moire-lattice excitons and microcavity photons has been established, providing versatile control of both matter and light. This moire polariton system combines strong nonlinearity and microscopic-scale tuning of matter excitations, offering a platform to study collective phenomena from tunable arrays of quantum emitters.
