Plasmonics最新文献_第3页

Towards Enhanced Efficiency of CsSnI3 Lead-Free Perovskite Solar Cells via Embedding Plasmonic Nanoparticles and Back Grooves: FDTD-SCAPS Numerical Simulations 通过嵌入等离子纳米粒子和背沟槽提高铯硒三无铅过氧化物太阳能电池的效率：FDTD-SCAPS 数值模拟

IF 3 4区物理与天体物理

Plasmonics Pub Date : 2024-09-10 DOI: 10.1007/s11468-024-02525-9

H. Ferhati, F. Djeffal

{"title":"Towards Enhanced Efficiency of CsSnI3 Lead-Free Perovskite Solar Cells via Embedding Plasmonic Nanoparticles and Back Grooves: FDTD-SCAPS Numerical Simulations","authors":"H. Ferhati, F. Djeffal","doi":"10.1007/s11468-024-02525-9","DOIUrl":"https://doi.org/10.1007/s11468-024-02525-9","url":null,"abstract":"Lead-free perovskite solar cells (LFP SCs) emerged as potential alternatives for elaborating high-efficiency eco-friendly photovoltaic systems. However, further improvements in terms of light trapping optimization and short-circuit current should be developed to overcome the efficiency limitation. In this work, a design framework based on coupling plasmon-induced charge separation gold nanoparticles (Au-NPs) and light trapping engineering using back grooves is proposed, to enhance the photovoltaic performance of the CsSnI3 solar cell. Accurate numerical models based on combined Finite Difference Time Domain (FDTD)-SCAPS calculations are performed including the influence of Au-NPs and back grooves. In addition, particle swarm optimization (PSO) technique is used to boost up the absorption capabilities of the proposed CsSnI3 solar cell, where the best distribution of Au-NPs (radius = 38 nm, period = 365 nm) and geometry of back grooves (period = 183 nm, height = 76 nm, and width = 190 nm) are successfully selected. The recorded power conversion efficiency of the proposed CsSnI3 solar cell could achieve 5.75% and a high short-circuit current of 23.3 mA/cm2 is reached by considering the optimized structure. Consequently, the obtained high-photovoltaic properties demonstrate the potential of the proposed design strategy for designing efficient LFP SC by exploiting plasmonic effects combined with light management engineering.","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"8 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

GST and MXene-Based Highly Sensitive Refractive Index Sensor with Gold Gratings Resonator Operating for Infrared Region 基于 GST 和 MXene 的高灵敏度折射率传感器，带金光栅谐振器，可在红外区域工作

IF 3 4区物理与天体物理

Plasmonics Pub Date : 2024-09-09 DOI: 10.1007/s11468-024-02517-9

Rahul Gupta, R. P. Dwivedi, Zen A. Sbeah, Vishal Sorathiya, Abdullah Alwabli, Ahmad Alghamdi, Osama S. Faragallah

{"title":"GST and MXene-Based Highly Sensitive Refractive Index Sensor with Gold Gratings Resonator Operating for Infrared Region","authors":"Rahul Gupta, R. P. Dwivedi, Zen A. Sbeah, Vishal Sorathiya, Abdullah Alwabli, Ahmad Alghamdi, Osama S. Faragallah","doi":"10.1007/s11468-024-02517-9","DOIUrl":"https://doi.org/10.1007/s11468-024-02517-9","url":null,"abstract":"This paper presents a plasmonic metamaterial sensor utilizing gold resonator gratings with different radii for the cylindrical gratings. The sensor is simulated using the finite element method (FEM) in the infrared wavelength range of 0.7 to 2.5 µm. The sensor structure consists of six layers, with the gold resonator on the top, beneath it a Ge–Sb–Te (GST) substrate sandwiched between two silicon (Si) substrates and then a MXene substrate sandwiched between two SiO2 substrates. The design exhibits distinct reflectance characteristics across the proposed range, which is suitable for different sensing applications. A comparison is made between the two states of GST (amorphous and crystalline) to investigate the sensitivity of the device. Geometrical parameters, including the height of GST and Si, are optimized, changing the oblique incident of light, and three types of comparisons are conducted. Firstly, a sensitivity comparison is made between this work and previously published research. Secondly, a quality factor and figure of merit comparison is performed. Lastly, a sensitivity comparison is made between different sensing techniques and the technique employed in this work. After optimizing the design parameters, the device demonstrates the highest detection sensitivity, yielding results of sensitivity equal to 800 nm /RIU. The proposed design-based metamaterial can be utilized as a lab-on-chip sensor.","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"3 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Plasmonic Properties of Graphene Loaded Waveguide Bounded by Chiroferrite Medium 以铁氧体介质为边界的石墨烯负载波导的等离子特性

IF 3 4区物理与天体物理

Plasmonics Pub Date : 2024-09-09 DOI: 10.1007/s11468-024-02523-x

M. Shaban, Zahraa J. Mohammed, Hussein H. AbdulGhani, Soror Ali Mahdi, Hasan Majdi, N. M. A. Hadia, Laiba, A. Waleed

{"title":"Plasmonic Properties of Graphene Loaded Waveguide Bounded by Chiroferrite Medium","authors":"M. Shaban, Zahraa J. Mohammed, Hussein H. AbdulGhani, Soror Ali Mahdi, Hasan Majdi, N. M. A. Hadia, Laiba, A. Waleed","doi":"10.1007/s11468-024-02523-x","DOIUrl":"https://doi.org/10.1007/s11468-024-02523-x","url":null,"abstract":"Herein, plasmonic characteristics of graphene filled waveguide surrounded by chiroferrite medium are analyzed in the THz frequency spectrum. Graphene conductivity is modelled using the Kobo formula, and impedance boundary conditions are employed to compute dispersion relation. The influence of constitutive variables of chiroferrite medium on the propagation behavior of SPP mode is examined. The propagation behavior of SPPs mode is studied by changing the constitutive parameters of chiroferrite medium and graphene features. From numerical results, it is revealed that effective mode index (EMI, phase velocity, graphene conductivity, and EM wave frequency) can be tailored by adjusting chirality, gyrotropy, and graphene features (chemical potential, number of graphene layers) in the THz frequency range. This work may have potential applications in plasmonic community to design the innovative optical sensors, plasmonic platforms, detectors, and surface waveguides in the THz frequency region and provide active control due to additional degree of freedom in graphene and anisotropy of chiral medium.","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"5 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Compact Three-Channel Photonic Crystal Fiber Sensor Based on Surface Plasmon Resonance 基于表面等离子体共振的紧凑型三通道光子晶体光纤传感器

IF 3 4区物理与天体物理

Plasmonics Pub Date : 2024-09-09 DOI: 10.1007/s11468-024-02522-y

Tianli Huo, Xili Jing, Zhiyong Yin, Tianci Gao, Mingshi Song

{"title":"Compact Three-Channel Photonic Crystal Fiber Sensor Based on Surface Plasmon Resonance","authors":"Tianli Huo, Xili Jing, Zhiyong Yin, Tianci Gao, Mingshi Song","doi":"10.1007/s11468-024-02522-y","DOIUrl":"https://doi.org/10.1007/s11468-024-02522-y","url":null,"abstract":"In order to improve the integration of fiber optic sensors, this paper designs a dual-core three-channel photonic crystal fiber (PCF) optic sensor that can simultaneously measure the refractive index of a liquid, its temperature, and the ambient magnetic field. Based on the PCF as well as SPR principles, the sensor has two D-planes, one coated with PDMS as well as a gold film for detecting temperature and the other coated with a gold film for detecting refractive index and coated with a gold film over the air holes on the side of the core where the refractive index is measured and a magnetic fluid injected into the air holes to detect the magnetic field. The results show a maximum sensitivity of 20,000 nm/RIU for refractive index, a linear sensitivity of 116 pm/Oe for magnetic field, and 5300 pm/°C for temperature when the sample’s refractive index is between 1.36 and 1.42, the temperature is between 0 °C and 50 °C, and the magnetic field is between 20 and 550 Oe. The sensitivity matrix of temperature versus refractive index is also given. The sensor is compact and simple to prepare, providing a new solution for miniaturization and integration of multifunctional photonic devices.","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"3 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of Graphene-Based Core/Shell Nanoparticles to Enhance the Absorption of Thin Film Solar Cells 设计基于石墨烯的核/壳纳米粒子以增强薄膜太阳能电池的吸收能力

IF 3 4区物理与天体物理

Plasmonics Pub Date : 2024-09-09 DOI: 10.1007/s11468-024-02476-1

Amir Mehrpanah, Hasan Rasooli Saghai, Babak Sakkaki, Ali Daghigh

{"title":"Design of Graphene-Based Core/Shell Nanoparticles to Enhance the Absorption of Thin Film Solar Cells","authors":"Amir Mehrpanah, Hasan Rasooli Saghai, Babak Sakkaki, Ali Daghigh","doi":"10.1007/s11468-024-02476-1","DOIUrl":"https://doi.org/10.1007/s11468-024-02476-1","url":null,"abstract":"Plasmonic nanoparticles have had a great impact on the enhancement of the absorption of the thin film solar cell. In this study, we propose two core/shell nanoparticles including graphene/Ag and Ag/graphene nanoparticles. For the design of the graphene/Ag nanoparticle, we utilize a graphene quantum dot (GQD) with a diameter of 66 nm as the core and cover it with Ag with a thickness of 1 nm. We compute the permittivity of the GQD based on the Cole–Cole model. For the design of the Ag/graphene nanoparticle, we cover a spherical Ag nanoparticle with a diameter of 66 nm with a graphene layer with a thickness of 1 nm. We model the surface conductivity of the graphene layer based on the Kubo formula. We consider both nanoparticles as homogeneous nanoparticles and obtain their permittivity based on the equivalent dielectric permittivity model. We incorporate these nanoparticles into an optical simulator and extract their scattering cross sections alongside the Ag nanoparticle. The graphene/Ag nanoparticle shows the best scattering performance; meanwhile, Ag nanoparticle has the weakest scattering performance. Then, we design a Si-based thin film solar cell with Ag nanoparticle and compute its characteristics through the FDTD method. Then, we replace the Ag nanoparticle with our nanoparticles. The short-circuit current density (Jsc) of the Si-based cell improves by 26.3% by embedding of Ag nanoparticle in the absorber layer. This improvement increases by embedding of graphene/Ag and Ag/graphene nanoparticles to 35.3% and 36.8%, respectively.","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"59 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Theoretical Investigation on the Role of Surface Plasmon Excitation in the Cloaking and Protection of Gold Cylindrical Rods Using Metallic Layers of Different Materials 利用不同材料的金属层对表面等离子体激发在金圆柱棒的隐蔽和保护中的作用进行理论研究

IF 3 4区物理与天体物理

Plasmonics Pub Date : 2024-09-06 DOI: 10.1007/s11468-024-02453-8

Sohila Hajihashemi, Bahram Jazi, Samaneh Najari

{"title":"A Theoretical Investigation on the Role of Surface Plasmon Excitation in the Cloaking and Protection of Gold Cylindrical Rods Using Metallic Layers of Different Materials","authors":"Sohila Hajihashemi, Bahram Jazi, Samaneh Najari","doi":"10.1007/s11468-024-02453-8","DOIUrl":"https://doi.org/10.1007/s11468-024-02453-8","url":null,"abstract":"This work investigates the excitation of plasmons in the common region between two coaxial cylindrical waveguides nested within each other, utilizing planar electromagnetic waves. The structure under consideration comprises a metallic antenna shielded with another metallic thin layer, both metals assumed to be cylindrical symmetrically without a gap and in a concentric configuration. The conductivity of the metals is evaluated using the Drude theory. An incident electromagnetic wave in B-mode with (B_zne 0) is radiated onto the mentioned antenna. By employing wave scattering theory and solving the field equations in each region, including the vacuum, outer metallic thin layer, and inner metallic core, the surface charge density resulting from the presence of surface plasmons at the interface between the inner metallic core and the outer metallic layer, as well as between the metallic layer and the vacuum region, is calculated and analyzed. The variations in surface plasmon density at the first interface (the common boundary between the two metals) and the interface between the metal and vacuum are investigated concerning changes in the incident wave frequency and the radii of the antenna layers. It is demonstrated that the excitation of plasmons occurs most significantly in the frequency range where the conductivities of the inner metallic core and the metallic layer have opposite signs, leading to synchronization between surface plasmons.","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"126 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

D-Shaped Photonic Crystal Fiber Plasmonic Sensor Based on Au-Ta2O5 Composite Micro-grating 基于金-Ta2O5 复合微光栅的 D 形光子晶体光纤等离子传感器

IF 3.3 4区物理与天体物理

Plasmonics Pub Date : 2024-09-06 DOI: 10.1007/s11468-024-02412-3

Mengqi Li, Hong Gu, Xuan Wu, Xiaotong Li

引用次数: 0

Enhancing Sensing and Imaging Capabilities Through Surface Plasmon Resonance for Deepfake Image Detection 通过表面等离子体共振增强传感和成像能力，用于深度伪图像检测

IF 3.3 4区物理与天体物理

Plasmonics Pub Date : 2024-09-06 DOI: 10.1007/s11468-024-02492-1

R. Uma Maheshwari, B.Paulchamy, Binay Kumar Pandey, Digvijay Pandey

{"title":"Enhancing Sensing and Imaging Capabilities Through Surface Plasmon Resonance for Deepfake Image Detection","authors":"R. Uma Maheshwari,  B.Paulchamy, Binay Kumar Pandey, Digvijay Pandey","doi":"10.1007/s11468-024-02492-1","DOIUrl":"10.1007/s11468-024-02492-1","url":null,"abstract":"<div>Plasmonic nanomaterials have revolutionized sensing and imaging technologies due to their unique optical properties, particularly surface plasmon resonance (SPR). These materials offer enhanced sensitivity and resolution, making them promising candidates for applications in deepfake image detection, where accurate authentication of digital content is crucial. This work presents the application of plasmonic nanomaterials in enhancing sensing and imaging capabilities for deepfake detection. Gold nanoparticles functionalized with specific ligands are employed to exploit SPR effects, enabling sensitive detection of minute alterations in image content. A spectroscopic setup is utilized to measure the SPR shifts corresponding to changes induced by deepfake manipulations. Experimental results demonstrate that the SPR-based sensing approach achieves a detection accuracy of over 95% in distinguishing deepfake images from authentic ones. The SPR sensor exhibits a high signal-to-noise ratio, providing robust performance even in complex imaging scenarios with varying lighting conditions and image resolutions. Plasmonic nanomaterials, leveraging SPR, offer a reliable method for enhancing deepfake image detection capabilities. The demonstrated high accuracy and sensitivity underscore their potential in combating digital media forgery, contributing to the development of more secure and trustworthy authentication systems for visual content.</div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"20 5","pages":"2945 - 2964"},"PeriodicalIF":3.3,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Eccentric Core Optical Fiber SPR Sensor for Refractive Index Sensing Characteristics 偏心芯光纤 SPR 传感器的折射率传感特性

IF 3.3 4区物理与天体物理

Plasmonics Pub Date : 2024-09-05 DOI: 10.1007/s11468-024-02508-w

Jianxia Liu, Chang Li, Libo Yuan, Chenghao Li

引用次数: 0

Terahertz Plasmonic Biosensor Leveraging Ag-Au-Graphene Heterostructures for Quantitative Hemoglobin Analysis with Machine Learning Algorithms for Performance Optimization 利用银-金-石墨烯异质结构进行血红蛋白定量分析的太赫兹等离子体生物传感器，以及用于性能优化的机器学习算法

IF 3.3 4区物理与天体物理

Plasmonics Pub Date : 2024-09-04 DOI: 10.1007/s11468-024-02520-0

Jacob Wekalao, Ngaira Mandela, Costable Lefu, Obed Apochi, Calistus Wamalwa, Wesley Langat

{"title":"Terahertz Plasmonic Biosensor Leveraging Ag-Au-Graphene Heterostructures for Quantitative Hemoglobin Analysis with Machine Learning Algorithms for Performance Optimization","authors":"Jacob Wekalao, Ngaira Mandela, Costable Lefu, Obed Apochi, Calistus Wamalwa, Wesley Langat","doi":"10.1007/s11468-024-02520-0","DOIUrl":"10.1007/s11468-024-02520-0","url":null,"abstract":"<div>This investigation presents the design, simulation, and performance analysis of a terahertz-based biosensor for hemoglobin detection. The sensor architecture incorporates a synergistic combination of graphene, gold, and silver metasurfaces in a hierarchical resonator structure. Extensive parametric analysis was conducted to optimize the sensor's performance characteristics. The optimized sensor demonstrates high sensitivity, achieving up to 1000 GHzRIU−1, with a figure of merit of 3.289 RIU−1. Experimental results indicate effective detection of hemoglobin concentrations ranging from 10 to 40 g/L, corresponding to refractive indices between 1.34 and 1.43. Electromagnetic field distribution analysis exemplifies peak absorption at 0.65 THz. Furthermore, the sensor’s potential for binary encoding applications was evaluated with remarkable performance. Machine learning optimization, employing a decision tree regressor, demonstrates an optimal R2 score of 100% across various parameter combinations, suggesting potential for the development of accurate sensing systems. The proposed sensor design represents a significant advancement in terahertz biosensing technology, with implications for enhanced medical diagnostics and biomedical research applications.</div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"20 5","pages":"2895 - 2919"},"PeriodicalIF":3.3,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0