Article
Chemistry, Physical
Jian Zhu, Shu-min Zhao
Summary: The local electric field enhancement in a long cylindrical Au nanohole with Pt coating was studied using a quasi-static model. Results showed that the peak wavelength and local field factor were significantly impacted by the Pt coating thickness, leading to a new LSPR band and intense field enhancement. Increasing Pt coating thickness shifted and intensified the local field factor peak, with different effects at inner and outer surfaces. These findings offer insights for designing SERS, surface-enhanced fluorescence, and biosensing applications.
Article
Materials Science, Ceramics
G. Shakhgildyan, L. Avakyan, M. Ziyatdinova, G. Atroshchenko, N. Presnyakova, M. Vetchinnikov, A. Lipatiev, L. Bugaev, V. Sigaev
Summary: This study demonstrated the possibility for thermally-controlled tuning of the localized surface plasmon resonance (LSPR) band position of gold nanoparticles in specific gold-doped glasses, achieving a maximum red-shift of up to 100 nm. The distinct red-shift of the LSPR band, driven by phase separation, represents a new approach for precise plasmonic tuning of gold nanoparticles in glass.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Nanoscience & Nanotechnology
Maosong Liu, Xin Jin, Shun Li, Jean-Baptiste Billeau, Tingyu Peng, Henan Li, Long Zhao, Zuotai Zhang, Jerome P. Claverie, Luca Razzari, Jianming Zhang
Summary: The recent application of localized surface plasmon resonances (SPRs) in metallic nanoparticles has led to the construction of plasmonic nanohybrids for heterogeneous photocatalysis. By encapsulating an Ag NP core with SiO2 and TiO2 layers, and Au NPs on the outer surface, an efficient plasmonic photocatalyst, Ag@SiO2@TiO2-Au, has been designed to enhance catalytic activity. The structure unit with strong scattering and field enhancement induced by a plasmonic resonator is shown to significantly boost photocatalytic activity for high H-2 production rates under visible light.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Anastasiya Olshtrem, Sergii Chertopalov, Olga Guselnikova, Rashid R. Valiev, Miroslav Cieslar, Elena Miliutina, Roman Elashnikov, Premysl Fitl, Pavel Postnikov, Jan Lancok, Vaclav Svorcik, Oleksiy Lyutakov
Summary: The properties and functionality of MXene are determined by the surface terminations, and this study proposes a plasmon-assisted chemical transformation method to modify the surface chemistry and termination of MXene flakes. By using bis-CF3-substituted iodonium salts, the hydrophilic oxygen-containing groups on MXene flakes were successfully substituted with hydrophobic and oleophilic -CF3 groups, resulting in a superhydrophobic, water-repellent, and oxidation-stable conductive MXene coating.
Article
Optics
Jian Zhu, Shu-min Zhao
Summary: The computational study investigates the plasmonic local electric field enhancement characteristics of a gain-assisted coaxial-cable type AgSi-Ag nanotube. Different surface plasmon resonance (SPR) hybridization modes are influenced by the gain medium in the separate silica layer, with critical gain coefficients leading to peak local field enhancement. Varying the geometry factors of the nanostructure can adjust the critical gain coefficient, showing that the thickness of the silica nanolayer with gain medium plays a crucial role in determining the maximum plasmonic field enhancement.
Article
Chemistry, Multidisciplinary
Torgom Yezekyan, Martin Thomaschewski, Sergey Bozhevolnyi
Summary: Metal-semiconductor-metal plasmonic nanostructures enhance on-chip manipulation and ultrafast photodetection by improving local fields. By using laser-induced Ge crystallization, efficiency of Ge plasmonic photodetectors can be increased significantly. This local postprocessing technique can be used in various nanophotonic devices for efficient on-chip radiation monitoring and detection.
Article
Biochemistry & Molecular Biology
Rui Cordeiro, Maria J. Beira, Carlos Cruz, Joao L. Figueirinhas, Marta C. Corvo, Pedro L. Almeida, Andreia A. Rosatella, Carlos A. M. Afonso, Carla I. Daniel, Pedro J. Sebastiao
Summary: This study aims to characterize a set of systems based on ionic liquids and DMSO mixtures, revealing that DMSO can tune the local order of these systems and relaxation enhancement. The study presents a method of characterizing paramagnetic ionic systems and obtaining a consistent analysis for samples with different co-solvent concentrations.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Physics, Applied
Yuan Tian, M. Shoufie Ukhtary, Riichiro Saito
Summary: The study optimizes the enhancement of the electric field within a hollow metallic cylinder as a function of the angular frequency of incident light. An empirical formula is obtained to describe the enhancement based on numerical calculations. It is found that maximum enhancement occurs when the induced charge density at the outer surface is minimized, likely due to a linear combination of two intrinsic modes of the cylindrical surface plasmon (SP).
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Shih-Lun Peng, Gang-Yi Chen, Su-Wen Hsu
Summary: Plasmonic nanocrystal-polymer nanocomposites can adjust their optical and electrical properties through the plasmon-induced electromagnetic field, with changes in the dielectric environment affecting the overall performance of the nanocomposites. These materials have potential applications in electromagnetic field or photonic sensors.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Chengda Pan, Qiang Ma, Shikang Liu, Yingxian Xue, Zhiyun Fang, Shiyu Zhang, Mengyao Qin, E. Wu, Botao Wu
Summary: This study demonstrates the control of polarization state in rare-earth ions doped upconversion nanoparticles (UCNPs) at the nanoscale and single-particle level by constructing angularly anisotropic plasmonic local-field distributions in gold nanorods (Au NRs) antennae. The enhanced upconversion luminescence (UCL) of UCNP tailored by plasmonic Au NRs nanoantennae exhibits linear polarization. The findings have significance in the study of optical polarization control and its applications in optoelectronic devices.
Article
Chemistry, Multidisciplinary
Dario Marchiani, Andrea Tonelli, Carlo Mariani, Riccardo Frisenda, Jose Avila, Pavel Dudin, Samuel Jeong, Yoshikazu Ito, Francesco Saverio Magnani, Roberto Biagi, Valentina De Renzi, Maria Grazia Betti
Summary: This study investigates the electron doping of graphene by adsorbing potassium on free-standing nanoporous graphene. By monitoring the electron migration in the downward-shifted conduction band, the authors observe an increase in the spectral density of electron states and a blue-shift in the associated plasmon upon increasing potassium dose. Spatially resolved photoemission confirms the correlation between electronic states and Dirac plasmon evolution.
Article
Chemistry, Multidisciplinary
Xiaofeng Zhu, Xin Tan, Kuang-Hsu Wu, Shu-Chih Haw, Chih-Wen Pao, Bing-Jian Su, Junjie Jiang, Sean C. Smith, Jin-Ming Chen, Rose Amal, Xunyu Lu
Summary: A novel carbon-based catalyst PtNPC with low Pt content but high ORR activity and stability has been developed in this research. Analysis suggests that the success of PtNPC lies in altering the d-band center of Pt atoms to enhance activity and predominantly promote the 4-electron reaction pathway.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Engineering, Multidisciplinary
ZhiGuo Xu, ZhiFang Hu
Summary: The near-field effect is utilized to enhance the near-field radiative heat transfer in a near-field thermophotovoltaic system. In this study, a two-body near-field thermophotovoltaic system based on hyperbolic metamaterial is designed. The system with multiple microstructures performs better than the system with single microstructures. The output power and efficiency are enhanced by the GZO-HfO2 surface plasmon polaritons in the multilayer structure.
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2023)
Article
Chemistry, Physical
Yong Liu, Chi Pang, Hiroshi Amekura, Thomas Schumann, Peng Liu, Zhixian Wei, Haocheng Liu, Rang Li
Summary: By designing the structure of metal nanoparticles, the manipulation of surface plasmonics can be achieved, resulting in enhanced absorption and fine-tuning of localized surface plasmon resonance band. This offers potential for improving the performance of nonlinear photonic devices.
APPLIED SURFACE SCIENCE
(2023)
Review
Chemistry, Multidisciplinary
Yi Cao, Jing Li, Mengtao Sun, Haiyan Liu, Lixin Xia
Summary: Improving nonlinear optics efficiency is a hot topic in modern optical research. With the development of nonlinear optical microscope systems, higher imaging resolution and detection accuracy are required. The surface plasmons of metal nanoparticle structures generate strong localized electromagnetic fields, which have been applied in various fields.
