Article
Physics, Applied
Wenxue Li, Longjie Fang, Yixin Dai, Lin Pang
Summary: This paper presents a large-area double frequency metallic grating based on surface enhanced Raman scattering substrate, which can achieve high Raman enhancement factor and low detectable concentration.
APPLIED PHYSICS EXPRESS
(2021)
Article
Materials Science, Multidisciplinary
Kipkurui Ronoh, Saleh H. Fawaeer, Vladimir Holcman, Alexandr Knapek, Dinara Sobola
Summary: An experimental investigation of electron beam physical vapour deposition of Ti, Au, and Ag metals on HOPG substrate to form HOPG-M thin films was conducted. The films were characterized using various techniques, revealing differences in morphology, topography, and surface chemistry among the metals. Raman and FTIR analyses showed variations in molecular structures and the presence of different functional groups on the thin films. The findings suggest the potential of HOPG as a substrate for preparing various M thin films.
Article
Physics, Applied
L. D. Espinosa-Cuellar, L. F. Lastras-Martinez, R. E. Balderas-Navarro, R. Castro-Garcia, A. Lastras-Martinez, J. M. Flores-Camacho, Mohammad Esmail Aryaee Panah, Elizaveta Semenova, Andrei V. Lavrinenko
Summary: This study examines the spatial modulation of TO mode amplitudes in highly doped InP semiconductors using a grating. By exciting the sample with linearly polarized light parallel and perpendicular to the grating grooves, a change in the amplitude of phonon optical response for the TO mode is observed.
APPLIED PHYSICS LETTERS
(2021)
Article
Physics, Applied
Yu-Chen Chang, Bipul Das, Yu-Fan Chiang, Wen-Hao Chang, Yen-Chun Chen, Rahul Kesarwani, Wen-Cheng Ke, Yann-Wen Lan, Ting-Hua Lu
Summary: Displacement in conventional Raman spectroscopy can be caused by an increase in material layers or strain variation. Polarization-resolved Raman spectroscopy provides a method to distinguish between them. This study uses polarization-resolved Raman spectroscopy and numerical analysis to investigate strained graphene induced by different substrates. The research shows that the polarization properties of scattered light in strained graphene are different from unstrained graphene due to phonon polarization deformation caused by different strengths of substrate coupling. This research provides an efficient quantitative method to explore strain anisotropy in two-dimensional materials, which is important for the development of straintronics in the future.
APPLIED PHYSICS LETTERS
(2023)
Article
Optics
Xingyu Wang, Xiaoyan Sun, Youwang Hu, Li Zeng, Qishi Liu, Ji'an Duan
Summary: The study focuses on the performance of metal-coated fiber optic temperature sensors, which show higher sensitivity and stability compared to bare FBG sensors. The experiment results demonstrate the potential application value of metal-coated FBG sensors in temperature engineering.
Article
Engineering, Environmental
Haidong Bian, Zhixuan Chen, Tongyuan Chen, Muhammad Humayun, Binbin Zhou, Wenchao Liao, Zhangjian Li, Zheming Zhang, Chundong Wang, Chen Liu
Summary: In this study, an anodization technique was introduced to quickly construct Co-Mo-based bimetallic oxides with simplified process and reduced time and energy consumption. The prepared Co/CoO/Co2Mo3O8 exhibited enhanced HER performance compared to Co(OH)2/CoMoO4 and CoO/CoMoO4, showing low overpotential and high Tafel slope in 1 M KOH. The recovered Co/CoO/Co2Mo3O8 also demonstrated reproductive HER performance, indicating the high efficiency and sustainability of the proposed anodization strategy. These findings provide a new and efficient route to construct high-stable bi-metallic or multi-metallic oxides for large-scale energy conversion applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Physics, Applied
S. Das, R. G. Tanguturi, S. Ghosh, R. K. Dokala, R. Medwal, S. Gupta, Z. Yan, Y. Qi, R. S. Rawat, S. Thota
Summary: This study investigates the orientation dependent growth characteristics, electronic structure, transport, magnetic, and vibrational excitations of [La0.7Sr0.3MnO3/LaNiO3](10) superlattices on SrTiO3 substrates. The results reveal differences in electrical resistivity, ferromagnetism, and vibrational excitations among superlattices grown on different orientations.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Gaomin Li, Xiaohua Wu, Yifan Gao, Xiaoming Ma, Fuchen Hou, Hanyan Cheng, Qiaoling Huang, Yueh-Chun Wu, Matthew C. DeCapua, Yujun Zhang, Junhao Lin, Chang Liu, Li Huang, Yue Zhao, Jun Yan, Mingyuan Huang
Summary: The intrinsic magnetic topological insulator MnBi2Te4 has a strong mechanical coupling between the atomic layer and the supporting substrate. The low-frequency breathing Raman mode is highly sensitive to sample degradation and can serve as an effective indicator of sample quality.
Article
Chemistry, Physical
Dongjoon Kim, Yuhyeon Lee, Minkyu Kim, Gibaek Lee, Shrine Maria Nithya Jeghan
Summary: In this study, heterostructures of nickel selenide and cobalt-iron layer double hydroxide were prepared and showed enhanced catalytic activity for oxygen evolution reaction and hydrogen evolution reaction through interfacial coupling. These heterostructures exhibited low overpotentials and Tafel slopes, as well as high catalytic activity at a current density of 10 mA·cm(-2). The enhancement of oxygen evolution reaction performance was confirmed by density functional theory calculations. This study provides a strategy for the development of heteronanostructure electrocatalysts for applications such as metal-air batteries and energy storage, and demonstrates their long-term stability.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Nanoscience & Nanotechnology
Yaning Zhou, Haizi Yao, Chundong Liu, Mengyu Chen, Chao Zhang, Mei Liu, Jian Wang, Fujun Zhang, Jing Yu, Baoyuan Man, Qianqian Sun
Summary: The study introduced micrometer-scale grating structure and nanometer-scale zinc oxide nano spikes into the SERS substrate, forming an optimized multiscale 3D structure with high sensitivity and enhancement factor for Rhodamine 6G as the probe molecule.
Article
Engineering, Electrical & Electronic
Ling Guo, Yajie Liu, Hongyan Yang, Minfang Shi, Fanfeng Ye, Jun Ma, Shouhong Chen
Summary: This article proposes a self-reference plasmonic sensor based on a combination of metallic grating and multilayered dielectric cavity to improve the sensing performance and mitigate the negative effects of environmental factors. The sensor achieves high resolution, stability, and sensitivity through the SPR sensing mode in the metallic grating and the GMR excited by the multilayered dielectric cavity.
IEEE SENSORS JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Georgy Gordeev, Soren Wasserroth, Han Li, Benjamin Flavel, Stephanie Reich
Summary: The study demonstrates the impact of moire patterns on the vibrational properties of double-walled carbon nanotubes and validates their influence on optical transition energies. Shifts in the radial breathing mode and optical transition energies were observed, providing a method for future experimental assignments.
Article
Multidisciplinary Sciences
Chika Imaoka, Tasuku Nakajima, Tsutomu Indei, Masaya Iwata, Wei Hong, Alba Marcellan, Jian Ping Gong
Summary: In this study, it was found that highly extended double-network hydrogels exhibit abnormal inverse mechanical-swelling coupling, with extension causing deswelling and drying causing softening. Theoretical models were established to reproduce the complex mechanical and swelling trends of the highly deformed hydrogels. These findings contribute to the understanding of the mechanics of rubber-like materials at their ultimate deformation and fracture limit.
Article
Chemistry, Analytical
Yi-Chi Lu, Wei-Hung Chiang, Chih-Yu Liu, Jinn P. Chu, Hsin-Chia Ho, Chun-Hway Hsueh
Summary: This study successfully fabricated ultrahigh sensitivity SERS substrates using metallic glass nanotube arrays at wafer scale, demonstrating detection of crystal violet and folic acid. This represents a significant step towards large-scale production of highly sensitive SERS-active materials.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Engineering, Environmental
Xinyue Xu, Yanghang Su, Yuanpeng Dong, Xiao Luo, Shihao Wang, Wenyu Zhou, Rong Li, Kevin Peter Homewood, Xiaohong Xia, Yun Gao, Xuxing Chen
Summary: The study conducted density functional theory calculations to predict the formation of an S-scheme heterojunction in the CdS quantum dots/Bi2MoO6 monolayer system. The novel S-scheme system showed high-efficiency photocatalytic degradation rate towards C2H4 under visible light, providing strong evidence for the S-scheme charge transfer path through in-situ XPS, PL, TRPL and EPR.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Xuanhua Li, Shaohui Guo, Jie Su, Xingang Ren, Zheyu Fang
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Chemistry, Multidisciplinary
Wenchao Wang, Xueqin Bai, Qing Ci, Lili Du, Xingang Ren, David Lee Phillips
Summary: The study presents a near-field-assisted model with an In2O3-cube/g-C3N4 heterojunction, which enhances the overpotential and interfacial kinetics of liquid-phase reaction, thereby boosting photocatalytic performance and significantly improving visible-light-driven hydrogen production efficiency.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Engineering, Electrical & Electronic
Xuesong Deng, Ming Fang, Xingang Ren, Zhixiang Huang, Xianliang Wu, Jiaming Shi
Summary: All-dielectric metasurfaces, composed of subwavelength particles and supporting trapped modes, can adsorb nucleic acids like DNA and RNA when coated with monolayer graphene. They exhibit high sensitivity to the surrounding environment and demonstrate excellent biosensing performance, making them a promising platform for ultra-sensitive bio-sensors.
IEEE PHOTONICS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Qing Ci, Xingang Ren, Yeqiang Yan, Hao Ren, Kaikun Niu, Guoxing Sun, Zhixiang Huang, Xianliang Wu
Summary: Perovskite light-emitting diodes (PeLEDs) have gained considerable research interest in recent years due to their decent and tunable optoelectronic characteristics. By incorporating nanopatterns, PeLEDs not only exhibit substantial improvement in light extraction intensity, but also reveal remarkable directivity, with the emission angle continuously engineered over 65 degrees. This work is of great importance for engineering highly directional and efficient luminescence devices.
IEEE PHOTONICS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Dongfang Shen, Xingang Ren, Qing Ci, Kaikun Niu, Siliang Wang, Zhixiang Huang
Summary: This research presents a fourfold rotationally symmetric metasurface supporting dual quasi-BIC modes with observed Fano characteristics in the near-infrared region. The resonant peaks of the dual quasi-BIC modes can be flexibly and independently adjusted by simply breaking the structural symmetry. Moreover, the dual quasi-BIC modes demonstrate extraordinary capability in controlling optical activity.
IEEE PHOTONICS JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Qitao Yu, Bingtian Zhao, Xingang Ren, Cuijie Zhu, Qiang Wang, Yang Lin, Wei Zeng, Zhiliang Chen, Siliang Wang
Summary: This article presents a wearable and flexible MXene fibrous network pressure sensor with high sensitivity and a wide detection range. The sensor shows potential applications in human motion signal detection and pressure distribution measurement.
Article
Optics
Qipeng Zhan, Haibin Pang, Junneng Liao, Wenlai Luo, Gang Wang, Xingang Ren, Jun Wang, Zongming Duan, Zhixiang Huang, Li Ding
Summary: This paper presents a design of an ultra-compact VO2-based plasmonic waveguide modulator for both TE and TM modes. The modulator achieves high extinction ratio and low insertion loss, and has excellent tolerance for fabrication process error.
Article
Computer Science, Interdisciplinary Applications
Guoda Xie, Ming Fang, Zhixiang Huang, Xingang Ren, Xianliang Wu
Summary: A novel implementation of the Debye dispersive model using the recursive integration (RI) approach for finite-difference time-domain (FDTD) simulation is proposed in this paper. The RI method is compatible with the traditional FDTD framework and efficiently constructs the perfect matched layer (PML) technique. The von Neuman method combined with the Routh-Hurwitz criterion is used to analyze the stability of the introduced method and determine the CFL limitation of the FDTD method in solving the dispersive model. Numerical results confirm the accuracy and efficiency of the RI method for simulating Debye dispersive media and setting RI-PML.
COMPUTER PHYSICS COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Chao Wang, Guanghui Xu, Minquan Li, Zhixiang Huang, Xingang Ren, Jingping Wang, Xianliang Wu
Summary: In this paper, an ultrawideband millimeter-wave bidirectional circularly polarized monopole antenna array is proposed. The antenna array utilizes a broadband CP monopole antenna element and a SRF technique to improve the AR bandwidth. The measured results show that the proposed antenna array has a wide impedance bandwidth and high gain for mm-Wave applications.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Materials Science, Ceramics
Gang Wang, Zhipeng Chen, Hui Yan, Tao Xuan, Mengyan Wu, Xue Zhu, Tong Ding, Li Ding, Xingang Ren, Xianliang Wu, Huaiwu Zhang
Summary: Low-temperature co-fired ceramics technology (LTCC) has significant advantages in packaging, integration, and interconnection. This study successfully sintered ZnZrNb2O8 ceramics with a single phase using the LBBS sintering aid, which resulted in excellent microwave dielectric properties. This provides potential candidates for LTCC applications.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Engineering, Electrical & Electronic
Guoda Xie, Ming Fang, Zhixiang Huang, Xianliang Wu, Xingang Ren, Naixing Feng
Summary: This article describes a dispersive finite-difference time-domain (FDTD) method based on the recursive integration technique for modeling lossy multipole Debye dispersive media. The method simulates the interaction between the electromagnetic field and human tissues and achieves good compatibility with the main FDTD algorithm through frequency-dependent formulations. The method also allows for the overall modeling of both multipole Debye dispersive media and multipole perfectly matched layer (MPML) boundary conditions.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2023)
Article
Engineering, Electrical & Electronic
Qian Chen, Zilin Qiao, Juliang Lv, Yong Ye, Xingang Ren, Wei Wang, Zhixiang Huang, Lixia Yang, Xianling Liang
Summary: This paper proposes a broadband active solar cell meta-surface (SCMS) antenna powered by solar energy and analyzes the improvement in antenna performance and solar cell coverage ratio achieved with SCMS.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Qian Chen, Zilin Qiao, Juliang Lv, Yong Ye, Xingang Ren, Wei Wang, Zhixiang Huang, Lixia Yang, Xianling Liang
Summary: This article proposes a broadband active solar cell metasurface (SCMS) antenna that is powered by solar energy. The SCMS antenna improves the performance of the original antenna and increases the coverage ratio of the solar cell.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Guocui Zhu, Kaikun Niu, Minquan Li, Yingsong Li, Xingang Ren, Guoda Xie, Zhixiang Huang, Xianliang Wu, Atef Z. Elsherbeni
Summary: An arbitrary high-order matrix exponential complex frequency-shift perfect matched layer algorithm is proposed for truncating the simulation space in the finite-difference time-domain method. The algorithm introduces a frequency-domain splitting generalization of high-order PML stretching function to construct a high-order format of the ME algorithm. Numerical results demonstrate improved absorption effects, reduced memory consumption, and shorter simulation times compared to existing algorithms.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2023)
Article
Materials Science, Multidisciplinary
Yong Fan, Kun Li, Xingang Ren, Wenlong Yan, Cuijie Zhu, Yuanfang Zhao, Wei Zeng, Zhiliang Chen, Siliang Wang
Summary: This study successfully produced a novel WO3/WS2 van der Waals heterostructured material with excellent sensing performance for 2-chloroethyl ethyl sulfide. The sensor exhibited high selectivity to the target gas, rapid response and recovery time, as well as good stability, making it a potential sensing material for dichlorodiethyl sulfide detection.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
