Article
Materials Science, Multidisciplinary
Esmail Zarezadeh, Ayaz Ghorbani
Summary: The possibility of tuning the optical response of a nano dipole antenna using various plasmonic materials and load geometries has been demonstrated. Numerical investigations show that different optical characteristics of the antenna can be achieved by incorporating different load geometries, and proper design can lead to tunable and broadband absorption. Incorporating a graphene-based load also results in multiple ESC peaks in the THz band.
MATERIALS RESEARCH EXPRESS
(2021)
Article
Chemistry, Multidisciplinary
Donglin Lu, Yang Chen, Lingan Kong, Chaobo Luo, Zheyi Lu, Quanyang Tao, Wenjing Song, Likuan Ma, Zhiwei Li, Wanying Li, Liting Liu, Qianyuan Li, Xiangdong Yang, Jun Li, Jia Li, Xidong Duan, Lei Liao, Yuan Liu
Summary: A strain-plasmonic coupled 2D photodetector is designed to overcome the limitations of poor light absorption and small detection range in 2D photodetectors. The designed photodetector can broaden the detection range by 60 nm and increase the signal-to-noise ratio by 650%. It also demonstrates built-in potential and photo-switching behavior, constructing a self-powered homojunction photodetector. This approach provides a new strategy for designing high-performance and broadband 2D optoelectronic devices.
Article
Nanoscience & Nanotechnology
Qing Leng, Huanhuan Su, Jianqiang Liu, Lin Zhou, Kang Qin, Qianjin Wang, Junqi Fu, Shan Wu, Xuejin Zhang
Summary: The study investigates the second-harmonic generation of monolayer transition metal dichalcogenides on suspended silver film, showing a significant enhancement of the SHG signal. The enhancement is attributed to the electric field amplification induced by symmetric surface plasmon polaritons (SPPs) in the silver grating.
Article
Chemistry, Multidisciplinary
Marko M. Petric, Malte Kremser, Matteo Barbone, Anna Nolinder, Anna Lyamkina, Andreas Stier, Michael Kaniber, Kai Mueller, Jonathan J. Finley
Summary: The combination of nanoplasmonic systems and optically active two-dimensional materials allows for the exploration and control of light-matter interactions at extreme subwavelength length scales. This study investigates the characteristics of a MoSe2 monolayer on individual gold dipole nanoantennas at room and cryogenic temperatures. The results reveal tuning of the dipolar resonance relative to the exciton and a coupling constant between exciton and plasmon, demonstrating active control of the coupling by varying the excitation light polarization.
Article
Materials Science, Multidisciplinary
Fabio Caruso, Patrick Amsalem, Jie Ma, Areej Aljarb, Thorsten Schultz, Marios Zacharias, Vincent Tung, Norbert Koch, Claudia Draxl
Summary: Experimental and theoretical evidence of strong electron-plasmon interaction in n-doped single-layer MoS2 has been reported. The emergence of distinctive signatures of polaronic coupling in the electron spectral function was revealed through angle-resolved photoemission spectroscopy measurements. Calculations based on many-body perturbation theory illustrated that electronic coupling to two-dimensional carrier plasmons provides an exhaustive explanation of the experimental spectral features and their energies.
Article
Chemistry, Multidisciplinary
Daniel Vaquero, Vito Clerico, Juan Salvador-Sanchez, Elena Diaz, Francisco Dominguez-Adame, Leonor Chico, Yahya M. Meziani, Enrique Diez, Jorge Quereda
Summary: This study investigates the photoresponse of fully h-BN encapsulated monolayer (1L) MoS2 phototransistors and identifies a rapidly-responding photogating effect mechanism. By fitting the power dependence of this photogating effect and estimating the energy level of the traps involved, it is found that the traps are compatible with shallow traps in MoS2 caused by sulfur vacancies.
Article
Optics
Wei Li, Ming Xin, Wenze Lan, Qinghu Bai, Shuo Du, Gang Wang, Baoli Liu, Changzhi Gu
Summary: By fabricating a metal-isolator-metal Salisbury-type perfect absorber, a 60-fold enhancement in photoluminescence of monolayer MoS2 was successfully achieved, with linear polarization approaching 60%. This paves a new way for developing optoelectronic devices based on TMDs.
LASER & PHOTONICS REVIEWS
(2022)
Article
Thermodynamics
Wenxiang Liu, Xiaona Huang, Yanan Yue
Summary: This study investigates the effects of the substrate surface topography on the thermal transport properties of MoS2-Si heterostructure through molecular dynamics simulations. It is found that introducing shallow nanogrooves on the substrate surface can decrease the in-plane thermal conductivity of monolayer MoS2 and surprisingly enhance the interface thermal transport of MoS2-Si heterostructure. These results are ascribed to the morphology change of supported MoS2, which bends to fit the substrate surface topography due to the van der Waals force at small groove depth. The study provides a fundamental understanding of heat transfer in heterostructures and offers new insights to enhance heat dissipation in electronic devices by introducing nanoscale roughness.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Chemistry, Multidisciplinary
Xin Chen, Aleksandra M. Krajewska, Cormac McGuinness, Amy Lynes, David McAteer, Nina Berner, Georg Duesberg, Jonathan N. Coleman, Aidan R. McDonald
Summary: This study reported the preparation of two new Ru-II complex-functionalized MoS2 hybrids, and systematically studied their influence on the hydrogen evolution reaction activity and photo-electrochemical performance. It was found that the catalytic activity of functionalized MoS2 was strongly affected by the number and type of functional groups, and the photovoltage generation in the dye-sensitized MoS2 system could be tuned by manipulating surface functionalities, providing practical guidance for designing future dye-sensitized MoS2 hydrogen production devices.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Nanoscience & Nanotechnology
Qingzhang You, Ze Li, Yang Li, Lilong Qiu, Xinxin Bi, Lisheng Zhang, Duan Zhang, Yan Fang, Peijie Wang
Summary: Researchers have constructed a plasmonic gap cavity of a nanowire dimer system to enhance the emission brightness of MoS2. Unlike conventional enhancement in plasmonic hot spots, they investigated the light emission of nanogap hot spots. The study demonstrated that this new plasmonic optical nanostructure can significantly enhance the emission of MoS2 through the Purcell effect.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Hien Duy Mai, Sangmin Jeong, Gi-Nam Bae, Ngoc Minh Tran, Jong-Sang Youn, Cheol-Min Park, Ki-Joon Jeon
Summary: Sulfidation of Pd species on monolayer MoS2 enhances the 1T-phase degree, leading to maximized metal utilization efficiency and exposure of active surface atoms. The resulting PdxSy/1T-MoS2 catalyst exhibits unprecedented high mass activity (-3444 A mg(Pd)(-1)) and turnover frequency (1892 s(-1)), three orders of magnitude higher than commercial Pt/C 10 wt%. The sulfidation-assisted 1T-phase enrichment has significant implications for the design of efficient electrocatalysts through MoS2 phase engineering.
ADVANCED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Yi Xu, Baowei Gao, Axin He, Tongzhou Zhang, Jiasen Zhang
Summary: The study presents and experimentally demonstrates a cross-layered all-optical 3D router using optical slot antenna pairs to achieve nanoscale footprint routing, enabling arbitrary direction routing of plasmonic signals between different layers. This configuration paves the way for future research and applications of high integration density 3D plasmonic circuits.
Article
Nanoscience & Nanotechnology
Ruhao Pan, Jianyu Kang, Yutong Li, Zhongshan Zhang, Renfei Li, Yang Yang
Summary: This study proposes a feasible method to prepare MoS2-based plasmonic hybrid systems and systematically investigates the enhancement effect of Ag SPs on the PL emission of MoS2. The results demonstrate that the sandwich-like hybrid system composed of monolayer MoS2 and two layers of Ag SPs with an Al2O3 layer between them achieves the highest PL enhancement.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Li Yang, Jinjie Liu, Yanwen Lin, Ke Xu, Xuezheng Cao, Zhisen Zhang, Jianyang Wu
Summary: Dislocations in the form of pentagon-heptagon pairs in grain boundaries have a significant impact on the mechanical properties of MoS2 crystals, depending on the tilt angle and dislocation arrangement. This study provides insights into the mechanical design of synthetic transition metal dichalcogenide crystals through dislocation engineering.
CHEMISTRY OF MATERIALS
(2021)
Article
Physics, Multidisciplinary
Yafei Zhao, Kuiying Nie, Liang He
Summary: In this study, the doping site, formation energy, electronic and optical properties of transition metal and nitrogen mono-doped and co-doped MoS2 are systematically investigated. The results show that both mono-doping and co-doping can reduce the band gap of MoS2 and introduce impurity levels within the band gap. Co-doping, especially Sc-N co-doping, can better assist photogenerated electronic transitions and achieve infrared light photoresponse. This work is of great significance for promoting the applications of MoS2 in the field of IR photodetectors and photovoltaic devices.
Article
Optics
Tianxiang Dai, Yutian Ao, Jueming Bao, Jun Mao, Yulin Chi, Zhaorong Fu, Yilong You, Xiaojiong Chen, Chonghao Zhai, Bo Tang, Yan Yang, Zhihua Li, Luqi Yuan, Fei Gao, Xiao Lino, Mark G. Thompson, Jeremy L. O'Brien, Yan Li, Xiaoyong Hu, Qihuang Gong, Jianwei Wang
Summary: This research reports on a device that can emit topologically protected entangled states in a natural environment. The device achieves this by performing four-wave mixing on edge modes, generating up to four-photon topological protected entangled states on a monolithically integrated silicon photonic chip.
Article
Physics, Multidisciplinary
Pan Chen, Congbing Tan, Zhexin Jiang, Peng Gao, Yuanwei Sun, Lifen Wang, Xiaomei Li, Ruixue Zhu, Lei Liao, Xu Hou, Ke Qu, Ning Li, Xiaomin Li, Zhi Xu, Kaihui Liu, Wenlong Wang, Jinbin Wang, Xiaoping Ouyang, Xiangli Zhong, Jie Wang, Xuedong Bai
Summary: Topological polar vortices, electric analogs of magnetic objects, show great potential in future nanoelectronics due to their nanometer size, anomalous dielectric response, and chirality. Researchers have investigated the evolutions of the polar state and chirality of topological polar vortices under an electric field and found that the chiral vortex cores can be laterally moved, transformed into domain stripes, and eventually become nonchiral. The rotation of the vortex during switching events offers a potential strategy to manipulate vortex chirality.
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
(2022)
Article
Multidisciplinary Sciences
Mei Wu, Xiaowei Zhang, Xiaomei Li, Ke Qu, Yuanwei Sun, Bo Han, Ruixue Zhu, Xiaoyue Gao, Jingmin Zhang, Kaihui Liu, Xuedong Bai, Xin-Zheng Li, Peng Gao
Summary: The study demonstrates the achievement of large strain gradients and atomic-scale flexoelectric polarization by exploiting the exotic structural inhomogeneity of grain boundaries, leading to a better understanding of the electrical activities of oxide ceramics and the alteration of electronic structures at grain boundaries. Additionally, the engineering of grain boundaries provides a general and feasible pathway to achieve tunable flexoelectricity in different materials.
NATURE COMMUNICATIONS
(2022)
Correction
Nanoscience & Nanotechnology
Yunfan Guo, Enzheng Shi, Jiadi Zhu, Pin-Chun Shen, Jiangtao Wang, Yuxuan Lin, Yunwei Mao, Shibin Deng, Baini Li, Ji-Hoon Park, Ang-Yu Lu, Shuchen Zhang, Qingqing Ji, Zhe Li, Chenguang Qiu, Song Qiu, Qingwen Li, Letian Dou, Yue Wu, Jin Zhang, Tomas Palacios, Anyuan Cao, Jing Kong
NATURE NANOTECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
B. X. Cao, D. X. Wei, X. F. Zhang, H. J. Kong, Y. L. Zhao, J. X. Hou, J. H. Luan, Z. B. Jiao, Y. Liu, T. Yang, C. T. Liu
Summary: This study investigates the embrittlement of high-entropy alloys at intermediate temperatures, revealing the temperature-dependent tensile failure mechanism and emphasizing the role of heterogeneous strain distribution and environmental attack.
MATERIALS TODAY PHYSICS
(2022)
Article
Physics, Multidisciplinary
Ruixue Zhu, Zhexin Jiang, Xinxin Zhang, Xiangli Zhong, Congbing Tan, Mingwei Liu, Yuanwei Sun, Xiaomei Li, Ruishi Qi, Ke Qu, Zhetong Liu, Mei Wu, Mingqiang Li, Boyuan Huang, Zhi Xu, Jinbin Wang, Kaihui Liu, Peng Gao, Jie Wang, Jiangyu Li, Xuedong Bai
Summary: In this study, the dynamics of room-temperature polar skyrmions were investigated using in situ scanning transmission electron microscopy. The reversible transformation among different structures was demonstrated, and the electrical manipulation of nanoscale polar skyrmions was discussed. This research provides important insights into the electric field control and potential applications in nanoelectronics.
PHYSICAL REVIEW LETTERS
(2022)
Article
Chemistry, Physical
Endian Cui, Xiangyang Yuan, Luomeng Tang, Lu Yang, Xiaoyan Yang, Xiaoling Liao, Jianfeng Tang, Yanan Zhao, Wei Sun, Kai Liu, Yingshuai Liu, Jing Liu
Summary: Incorporating Eu3+ and Tb3+ into Cs2AgInCl6 nanocrystals can enhance their structural stability and optical properties, resulting in a more stable cubic double perovskite structure and increased optical band gap. By controlling the doping concentration of Eu3+ or Tb3+, the emitted color of the nanocrystals can be adjusted.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Feng Zhang, Kai Liu, Qiaoyun Tang, Guo Li, Dasheng Zhu
Summary: In this study, a model of nano-crystalline Cu-Ag alloy with gradient segregation was constructed using the equidistance scaling method. Molecular dynamic simulation was used to explore how the solute concentration distribution affects the strength enhancement. The results revealed that samples with higher intra-granular solute concentration had more dislocation activities, thinner amorphous inter-granular films, more homogeneous deformation, and higher flow stress at the plastic stage, while the opposite was observed in samples with higher solute concentration near the grain boundary.
Article
Nanoscience & Nanotechnology
Xiaoxue Gao, Sidan Fu, Tao Fang, Xiaobai Yu, Haozhe Wang, Qingqing Ji, Jing Kong, Xiaoxin Wang, Jifeng Liu
Summary: In this study, two semimetal composite nanostructures, namely pseudo-periodic Sn nanodots and conductive SnOx (x < 1) core-shell nanoneedle structures, are deposited on 2D MoS2 to achieve synergistic photon management and strain-induced band gap engineering. The optical absorption enhancement in MoS2 is due to strong near-field enhancement and reduced band gap caused by the tensile strain induced by the Sn nanostructures. Particularly, the use of SnOx (x < 1) nanoneedles introduces up to 3.5% biaxial tensile strain and reduces the band gap by approximately 0.35 eV, further enhancing light absorption at longer wavelengths. This is the first demonstration of a synergistic triple-functional photon management, stressor, and conductive electrode layer on 2D MoS2.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Shuai Yang, Meng Li, Chu Li, Linyu Yan, Qiang Li, Qihuang Gong, Yan Li
Summary: Self-propelled autonomous devices have wide application potential in energy conservation, environmental protection, and biomedical engineering. However, traditional driving forces often require external energy or special chemicals. In this study, a novel and environmentally friendly droplet-driven device (DDD) was developed, which consists of superhydrophilic triangles on a superhydrophobic plate processed solely by a femtosecond laser. The DDD is driven by a water droplet flow along a superhydrophilic channel and can be manipulated by changing the point angle of the triangle and the volume of the droplet. By fabricating multiple or special channels, the DDD can translate, rotate, and even carry objects, providing a new approach for the fabrication of green self-propelled autonomous devices and their application in intelligent systems and environmental protection.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Multidisciplinary Sciences
Yun Zheng, Chonghao Zhai, Dajian Liu, Jun Mao, Xiaojiong Chen, Tianxiang Dai, Jieshan Huang, Jueming Bao, Zhaorong Fu, Yeyu Tong, Xuetong Zhou, Yan Yang, Bo Tang, Zhihua Li, Yan Li, Qihuang Gong, Hon Ki Tsang, Daoxin Dai, Jianwei Wang
Summary: This study demonstrates a multichip multidimensional quantum entanglement network based on integrated-nanophotonic quantum node chips. Multiple multidimensional entangled states can be distributed across multiple chips using hybrid multiplexing and few-mode fibers. The study also developed a technique for efficiently retrieving multidimensional entanglement in complex-medium quantum channels.
Review
Physics, Multidisciplinary
Zihan Wang, Yan Yang, Bin Hua, Qingqing Ji
Summary: Two-dimensional materials are promising for ultrascaling transistors due to their immune short-channel effects. Chemical approaches like chemical vapor deposition and metalorganic CVD have been established to synthesize nanostructures and heterostructures for ultrascaled transistors. This review summarizes recent developments on the precise synthesis and defect engineering of electronic nanostructures/heterostructures for transistor applications. It is demonstrated that ultrascaled 2D transistors can be achieved by finely tuning the growth-as-fabrication process, which could lead to new device physics. Additionally, synthetic electronics possess superior scaling capability and could facilitate the development of post-Moore nanoelectronics.
FRONTIERS OF PHYSICS
(2023)
Article
Optics
Meng Li, Chu Li, Linyu Yan, Qiang Li, Qihuang Gong, Yan Li
Summary: This paper reports the experimental realization of fractal photonic anomalous Floquet topological insulators, in which a lattice composed of dual Sierpinski carpet is fabricated using femtosecond laser direct writing. The fabricated lattice supports multiple chiral edge states and enables efficient hopping of quantum states. The generation of highly indistinguishable single-photon chiral edge states in the fractal lattice suggests its potential applications in various quantum operations and encoding of quantum information.
LIGHT-SCIENCE & APPLICATIONS
(2023)
Article
Astronomy & Astrophysics
Chun-Tai Wu, Zhi-Lei She, Xin-Ye Peng, Xiao-Lin Kang, Hong-Ge Xu, Dai-Mei Zhou, Gang Chen, Ben-Hao Sa
Summary: In this study, a dynamically constrained phase-space coalescence (DCPC) model was used to investigate the yield of the exotic state & chi;c1(3872). The results indicate that the tetraquark state scenario from the PACIAE+DCPC model agrees well with experimental measurements, suggesting that the & chi;c1(3872) is likely to be a compact tetraquark state.
Article
Physics, Multidisciplinary
Chu Li, Meng Li, Linyu Yan, Sheng Ye, Xiaoyong Hu, Qihuang Gong, Yan Li
Summary: Researchers have achieved second-order photonic topological insulators in two-dimensional lattices, exhibiting high correlations and visibility, with potential applications in quantum algorithms, simulation, and computation.
PHYSICAL REVIEW RESEARCH
(2022)
