Plasmonics最新文献_第6页

Laser-fabricated Metal Oxide Core–shell Nanoparticles for Biomedical Applications: a Mini Review 激光制备的金属氧化物核壳纳米颗粒在生物医学上的应用：综述

IF 4.3 4区物理与天体物理

Plasmonics Pub Date : 2025-02-03 DOI: 10.1007/s11468-024-02469-0

Sarah M. Talib, Adawiya J. Haider, Sharafaldin Al-Musawi, Fawwaz Shakir Al-Joudi, Suhair A. Ahmed

{"title":"Laser-fabricated Metal Oxide Core–shell Nanoparticles for Biomedical Applications: a Mini Review","authors":"Sarah M. Talib, Adawiya J. Haider, Sharafaldin Al-Musawi, Fawwaz Shakir Al-Joudi, Suhair A. Ahmed","doi":"10.1007/s11468-024-02469-0","DOIUrl":"10.1007/s11468-024-02469-0","url":null,"abstract":"<div><p>Core–shell nanoparticles prepared by pulsed laser ablation in liquid (PLAL) offer a revolutionary approach to medical treatment, boasting versatile properties that enable precise drug delivery and early disease detection. With the integration of therapeutic and diagnostic capabilities, known as theragnostic, these nanoparticles allow real-time monitoring of treatment response. Their biocompatibility, stability, and multifunctionality make them cutting-edge tools in modern medicine, addressing challenges in drug delivery, imaging, and targeted therapy for improved patient outcomes. In medical applications, drug delivery is a key area of research and utilization for core–shell nanoparticles. Engineered to encapsulate therapeutic agents within their core and coated with a responsive shell, these nanoparticles enable controlled drug release at targeted sites, enhancing efficacy while minimizing side effects. Core–shell nanoparticles hold the potential to improve drug solubility, prolong circulation time, and customize drug release kinetics, making them adaptable to various therapeutic needs, from cancer therapy to chronic disease management. PLAL has emerged as a vital technique for manufacturing core–shell nanoparticles because of its unique advantages. By irradiating a target material with a pulsed laser beam in a liquid environment, PLAL enables precise nanoparticle generation with tailored size, morphology, and composition. This technique offers a scalable approach for synthesizing core–shell nanoparticles, allowing for the encapsulation of different materials within a protective shell. PLAL also facilitates the incorporation of functional coatings, enhancing nanoparticle properties and functionalities for diverse medical applications such as drug delivery, imaging, and catalysis. With its ability to produce tailored nanoparticles with high purity and reproducibility, PLAL holds promise for advancing the development of next-generation core–shell nanomaterials.</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"20 9","pages":"7509 - 7526"},"PeriodicalIF":4.3,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090394","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

Engineering of Ultra-wide Bandwidth Metamaterial Absorber with Various Shaped Resonators in the Visible to Far-Infrared Spectrum 可见光到远红外光谱中具有不同形状谐振腔的超宽带超材料吸收器工程

IF 4.3 4区物理与天体物理

Plasmonics Pub Date : 2025-02-01 DOI: 10.1007/s11468-025-02793-z

Raj Kumar, Rishabh Gupta, Ashwini Kumar Mishra, Neha Singh, Praveen C. Pandey, Bipin K. Singh

{"title":"Engineering of Ultra-wide Bandwidth Metamaterial Absorber with Various Shaped Resonators in the Visible to Far-Infrared Spectrum","authors":"Raj Kumar, Rishabh Gupta, Ashwini Kumar Mishra, Neha Singh, Praveen C. Pandey, Bipin K. Singh","doi":"10.1007/s11468-025-02793-z","DOIUrl":"10.1007/s11468-025-02793-z","url":null,"abstract":"<div><p>We have theoretically investigated the engineering of a highly efficient metamaterial (MTM) absorber with nanocircular ring resonators of nickel (Ni) metal for the absorption of visible to far-infrared (400 nm to 4000 nm). A metal–insulator-metal structure is used in the design of the proposed MTM absorber. We have observed the high absorption values with varying top resonator designs Ni-metal compared to other considered metals. The proposed absorber exhibits an average absorption of 95.34% for transverse electric (TE) and transverse magnetic (TM) modes for wavelengths 400 nm to 4000 nm. The CST simulation software analyzes the absorber’s properties for different structural parameters. The average absorption is attained over 90% at different incidence angles and independent of polarization angles. Moreover, we have investigated the absorption performance using various structural characteristics. Short-circuit current densities (<i>Jsc</i>) are investigated using a global air mass of 1.5 (AM1.5) solar spectrum at various incidence angles. The proposed absorber containing Ni metal nanoresonators is designed as an alternative for thermal, emission, photovoltaic, and energy harvesting applications due to its attractive functionality, including geometry, cost, polarization insensitivity, large bandwidth, and thermal robustness.</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"20 9","pages":"7477 - 7494"},"PeriodicalIF":4.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090303","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

Theoretical Analysis of Diffraction Grating-Based SPR Sensor Using the Rigorous Coupled Wave Analysis Method 基于衍射光栅的SPR传感器的严格耦合波分析方法

IF 4.3 4区物理与天体物理

Plasmonics Pub Date : 2025-02-01 DOI: 10.1007/s11468-025-02799-7

Suryansh Saxena, Yagyasha Rastogi, Navneet K. Sharma

{"title":"Theoretical Analysis of Diffraction Grating-Based SPR Sensor Using the Rigorous Coupled Wave Analysis Method","authors":"Suryansh Saxena, Yagyasha Rastogi, Navneet K. Sharma","doi":"10.1007/s11468-025-02799-7","DOIUrl":"10.1007/s11468-025-02799-7","url":null,"abstract":"<div><p>Surface plasmon resonance (SPR) sensors are crucial for highly sensitive, label-free detection in various applications, including biosensing and environmental monitoring. This study investigates the sensitivity and performance of diffraction grating-based SPR sensors using rigorous coupled wave analysis (RCWA). The analysis focuses on single- and bi-layered metallic structures composed of copper, gold, and silver. The results reveal that single-layer silver sensors exhibit the highest sensitivity of 169.37°/RIU followed by Au and Cu with a sensitivity of 168.4°/RIU and 167.9°/RIU respectively. Further, to enhance the stability and reliability, bilayered configurations were introduced, incorporating protective coatings of one metal over the other. Among the bilayered configurations, Ag-Cu demonstrated the greatest sensitivity of 175°/RIU followed by Ag-Au with a sensitivity of 173.25°/RIU and Au-Cu with the sensitivity of 168.5°/RIU. This study establishes the potential of bi-metallic SPR sensors for achieving superior sensitivity and stability, highlighting their applicability in advanced detection systems. The novel insight into the interplay between material properties and sensor performance offers a roadmap for designing next-generation plasmonic sensors.</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"20 9","pages":"7495 - 7507"},"PeriodicalIF":4.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11468-025-02799-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mode Switchable Quantum Well Infrared Detector with Rectangular Plasmonic Microcavity Structure 矩形等离子体微腔结构的模式可切换量子阱红外探测器

IF 4.3 4区物理与天体物理

Plasmonics Pub Date : 2025-02-01 DOI: 10.1007/s11468-024-02666-x

Jun Zhao, Tongtong You, Hengrui Jiang, Dayuan Xiong

{"title":"Mode Switchable Quantum Well Infrared Detector with Rectangular Plasmonic Microcavity Structure","authors":"Jun Zhao, Tongtong You, Hengrui Jiang, Dayuan Xiong","doi":"10.1007/s11468-024-02666-x","DOIUrl":"10.1007/s11468-024-02666-x","url":null,"abstract":"<div><p>In this paper, a GaAs/AlGaAs quantum well infrared photodetector (QWIP) using a rectangular plasmonic microcavity structure is proposed. Based on the fact that different side lengths of the rectangular patch responding to different TM waves during surface plasmon resonance, the device has three modes of operation. In the case of TM<sub>10</sub> and TM<sub>01</sub> waves being incident alone, the response peaks of the device are located at 6.48 μm and 7.38 μm, which correspond to the two single-peak modes of Ex and Ey polarisation, respectively. The two response wavelengths generated by the two polarisation modes are independently regulated within a certain range and are not affected by each other. In the case of simultaneous incidence of TM<sub>10</sub> and TM<sub>01</sub> waves, the full width at half maximum (FWHM) of the device’s responsivity spectrum reaches 1.56 μm, which is broadband response mode. The simulation study reveals that the average electric field enhancement |<i>E</i><sub>Z</sub>|/|<i>E</i><sub>0</sub>| in all three modes is more than 5 times, while the single-peak and broadband response mode responsivities reach 3 A/W and 2 A/W, respectively. Our findings indicate that the average energy inside the microcavity is positively correlated with the microcavity volume within a certain range. Moreover, the coupling structure exhibits favourable incident angle compatibility, and the device performance in each mode is insensitive to the incident angle in the range of ~ 45°.</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"20 9","pages":"7467 - 7476"},"PeriodicalIF":4.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090239","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

Enhancement of Ultra-Thin Inverted Perovskite Solar Cell Performance Using Au Nanopyramids: An Optical and Electrical Simulation Study 利用金纳米金字塔增强超薄倒置钙钛矿太阳能电池性能：光学和电学模拟研究

IF 4.3 4区物理与天体物理

Plasmonics Pub Date : 2025-01-31 DOI: 10.1007/s11468-025-02771-5

Danping Zhang, Chuyuan Yang

{"title":"Enhancement of Ultra-Thin Inverted Perovskite Solar Cell Performance Using Au Nanopyramids: An Optical and Electrical Simulation Study","authors":"Danping Zhang, Chuyuan Yang","doi":"10.1007/s11468-025-02771-5","DOIUrl":"10.1007/s11468-025-02771-5","url":null,"abstract":"<div><p>In recent years, the development of ultra-thin perovskite solar cells has attracted attention due to their potential for producing flexible and less toxic solar cells. However, the use of perovskite thin films results in lower efficiency due to inadequate light harvesting. This paper proposes and numerically investigates the incorporation of Au nanopyramids within the 200 nm thick perovskite layer of inverted perovskite solar cells to enhance light harvesting. The effects of the size and periodicity of the nanopyramids on light absorption in the active layer are examined to achieve optimum cell performance. The mechanisms behind the improvement in absorption are analyzed through Mie resonance and near-field distribution. The optimized Au nanopyramids embedded in the perovskite layer led to a 19.48% increase in perovskite layer absorption. Additionally, devices based on Cu, Al, and Ag are studied to investigate the significance of the materials used in the plasmonic structures. The effects of Au nanopyramids in solar cells with perovskite layer thicknesses of 100 nm and 300 nm are also examined. Electrical analysis is performed on all optimized structures, and photovoltaic parameters are extracted. The findings of our research facilitate the design of high-performance, ultra-thin, and stable perovskite solar cells.</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"20 9","pages":"7369 - 7379"},"PeriodicalIF":4.3,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090547","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

Boosting the Sensitivity of Cu-based SPR Dengue Sensor Using Cu/Compound Semiconductor/BaTiO3 Configuration for Effective Early-Stage Dengue Detection 利用Cu/化合物半导体/BaTiO3结构提高Cu基SPR登革热传感器的灵敏度，有效早期检测登革热

IF 4.3 4区物理与天体物理

Plasmonics Pub Date : 2025-01-31 DOI: 10.1007/s11468-025-02790-2

Sandipta Senapati, Madhusudan Mishra

{"title":"Boosting the Sensitivity of Cu-based SPR Dengue Sensor Using Cu/Compound Semiconductor/BaTiO3 Configuration for Effective Early-Stage Dengue Detection","authors":"Sandipta Senapati, Madhusudan Mishra","doi":"10.1007/s11468-025-02790-2","DOIUrl":"10.1007/s11468-025-02790-2","url":null,"abstract":"<div><p>A sizable 430°/RIU (refractive index unit) sensitivity for the dengue detection is reported using the surface plasmon resonance (SPR) technique with the copper/compound semiconductor/BaTiO<sub>3</sub> configuration. The involvement of the copper makes the device significantly less expensive than the conventional gold (Au)/silver (Ag)-based SPR sensors and that can significantly lower the diagnostic cost. The study uses healthy and sickened plasma, platelets, and haemoglobin using blood as a biosample and shows the highest sensitivity for plasma, which notably contains the highest non-structural protein (NS1) in the early stage. The combined effect of compound semiconductor nitrides (aluminium nitrite (AlN), silicon nitrite (Si<sub>3</sub>N<sub>4</sub>), or gallium nitrite (GaN)) and BaTiO<sub>3</sub> helps to boost the sensor’s sensitivity and selectivity together. The angular sensitivity of 430°/RIU and quality factor (QF) of 136 RIU<sup>−1</sup> is achieved using Cu (58 nm), AlN (14 nm), and BaTiO<sub>3</sub> (1 nm). The aforesaid advantages along with a visible operating wavelength of <i>λ</i> = 633 nm make the proposed device a considerable design achievement for development of low-cost sensing equipment for efficient dengue detection.</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"20 9","pages":"7393 - 7405"},"PeriodicalIF":4.3,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090543","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

Highly Sensitive TiO2-Gold Coated Plasmonic Biosensor with Microchannel-Based D-shaped Photonic Crystal Fiber 基于微通道d形光子晶体光纤的高灵敏度tio2 -金涂层等离子体生物传感器

IF 4.3 4区物理与天体物理

Plasmonics Pub Date : 2025-01-31 DOI: 10.1007/s11468-025-02782-2

Ahan Chakrabortty, Safayat-Al Imam, Md. Sazzad Ali Rafe, Md. Saif Ali Khan, Rithik Ghosh

{"title":"Highly Sensitive TiO2-Gold Coated Plasmonic Biosensor with Microchannel-Based D-shaped Photonic Crystal Fiber","authors":"Ahan Chakrabortty, Safayat-Al Imam, Md. Sazzad Ali Rafe, Md. Saif Ali Khan, Rithik Ghosh","doi":"10.1007/s11468-025-02782-2","DOIUrl":"10.1007/s11468-025-02782-2","url":null,"abstract":"<div><p>A microchannel-based D-shaped photonic crystal fiber (PCF) biosensor utilizing surface plasmon resonance (SPR) to measure the refractive index (RI) of an analyte in the near-infrared (IR) region is proposed in this paper. The sensor's design incorporates a hexagonal lattice with four rings of circular air holes, where the upper row of holes is etched to create a D-shaped plane and a microchannel is integrated. The external sensing mechanism allows plasmonic gold (Au) deposition on the interior surface, with a thin titanium dioxide (TiO<sub>2</sub>) layer to improve adhesion. Numerical simulations utilizing the finite element method (FEM) with perfectly matched layer (PML) boundary conditions were employed to optimize the important parameters, executed through COMSOL Multiphysics. The simulation results indicate that the optimized sensor achieves a peak wavelength sensitivity of 23,500 nm/RIU, amplitude sensitivity of 489.3 RIU⁻<sup>1</sup>, resolution of 4 × 10⁻⁶ RIU, and FOM of 412.28 within the refractive index (RI) range of 1.31 to 1.42. With its high sensitivity, wide detection range, and fabrication tolerance, the proposed sensor shows strong potential for biological and biochemical analyte detection.</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"20 8","pages":"5705 - 5719"},"PeriodicalIF":4.3,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144923351","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

Highly Sensitive Surface Plasmon Resonance Cancer Cell Biosensor Based on BlueP/TMDCs and MXene Heterostructure 基于BlueP/TMDCs和MXene异质结构的高灵敏度表面等离子体共振癌细胞生物传感器

IF 4.3 4区物理与天体物理

Plasmonics Pub Date : 2025-01-31 DOI: 10.1007/s11468-024-02729-z

Wentao Xu, Tao Liu, Yanhua Ma, Min Jin, Fuxiang Wang, Chunmao Fan, Zhi Zhangyong, Lei Han

{"title":"Highly Sensitive Surface Plasmon Resonance Cancer Cell Biosensor Based on BlueP/TMDCs and MXene Heterostructure","authors":"Wentao Xu, Tao Liu, Yanhua Ma, Min Jin, Fuxiang Wang, Chunmao Fan, Zhi Zhangyong, Lei Han","doi":"10.1007/s11468-024-02729-z","DOIUrl":"10.1007/s11468-024-02729-z","url":null,"abstract":"<div><p>Cancer has become a critical global health issue, highlighting the urgent need for detection methods that are both fast and highly accurate. This study presents an advanced surface plasmon resonance (SPR) biosensor for detecting various cancer cell types (Jurkat, PC12, HeLa), utilizing a hybrid structure with two-dimensional (2D) materials, such as MXene (Ti3C2Tx) and a composite of blue phosphorene with transition metal dichalcogenides (BlueP/TMDCs). Simulation software MATLAB was used to model the SPR biosensor, assessing its sensitivity and figure of merit (FOM). Optimal sensitivity, reaching 251.21°/RIU, was achieved with a monolayer of MXene and a bilayer of BlueP/WS<sub>2</sub>, specifically detecting PC12 (adrenal glands cells). Compared with the traditional silver (Ag) film used in standard SPR biosensors, this hybrid structure with BlueP/WS<sub>2</sub> demonstrated a 50% increase in sensitivity. SPR biosensors have shown significant advancements in sensitivity and precision over current clinical diagnostic methods, providing a robust foundation for early disease diagnosis and treatment.</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"20 9","pages":"7381 - 7391"},"PeriodicalIF":4.3,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090541","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 Computational Study for Graphene-Based Metasurface Polarizer for Far Infrared Frequency Spectrum–Based Application 基于远红外光谱的石墨烯超表面偏振器的计算研究

IF 4.3 4区物理与天体物理

Plasmonics Pub Date : 2025-01-31 DOI: 10.1007/s11468-025-02786-y

Zen Sbeah, Vishal Sorathiya, Torki Altameem, Walid El-Shafai

{"title":"A Computational Study for Graphene-Based Metasurface Polarizer for Far Infrared Frequency Spectrum–Based Application","authors":"Zen Sbeah, Vishal Sorathiya, Torki Altameem, Walid El-Shafai","doi":"10.1007/s11468-025-02786-y","DOIUrl":"10.1007/s11468-025-02786-y","url":null,"abstract":"<div><p>A tunable silica-graphene-gold composited structure that operates in the infrared frequency range is proposed, and numerical results are presented. The polarization impact of the structure is studied throughout the whole frequency spectrum, which spans from 1 to 30 THz. External biasing can be applied to tune the single-layered graphene sheet’s fermi energy/chemical potential. Several performance indicators, including variations in phase over input and output port, differences in phase for the different polarization, polarization conversion rate, effective refractive indices for metasurface behavior, and reflectance, are used to represent the reaction of the polarizer. To evaluate whether or not linear polarization can be converted to circular polarization, we have investigated a polarizer structure based on graphene in co-polarization and cross-polarization input incident scenarios. Additionally, it exhibits an effective refractive index response, which may be utilized to evaluate the metasurface behavior of the polarizer across the frequency range of 1 to 30 THz. It has been seen that there is a correlation between the polarization amplitude and the Fermi energy/chemical potential of the graphene sheet. The maximum variation in the amplitude of the reflected light was up to 90%, which is attained through the proposed design. This structure is also stable for the wide oblique incident angle up to 80°. The suggested polarizer structure results can be utilized in constructing various electro-optical structures that function in the lower terahertz band.</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"20 9","pages":"7451 - 7465"},"PeriodicalIF":4.3,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090548","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

Synthesis and Characterization of CQDs Obtained from Carbon Soot of Almond Oil and Its Hierarchical Arrangement in 6CHBT LC Media: Role of Functionalization 杏仁油碳烟灰CQDs的合成与表征及其在6CHBT LC介质中的层次化排列：功能化的作用

IF 4.3 4区物理与天体物理

Plasmonics Pub Date : 2025-01-31 DOI: 10.1007/s11468-024-02702-w

Manish Kumar Mishra, Satya Pal Singh

{"title":"Synthesis and Characterization of CQDs Obtained from Carbon Soot of Almond Oil and Its Hierarchical Arrangement in 6CHBT LC Media: Role of Functionalization","authors":"Manish Kumar Mishra, Satya Pal Singh","doi":"10.1007/s11468-024-02702-w","DOIUrl":"10.1007/s11468-024-02702-w","url":null,"abstract":"<p>We synthesized carbon quantum dots (CQDs) from carbon soot of almond oil deposited on a copper metal surface. We functionalized CQDs using 2,5-dimercapto-1,3,4-thiadiazole (DMTD) and explored the integration of functionalized CQDs in 6CHBT LC media. Our primary objective was to investigate the effect of functionalized CQDs on the organizational behavior and optoelectronic properties of the hybrid systems. We calculated the electronic properties such as the bandgap of the synthesized CQDs and functionalized CQDs using UV–Vis-NIR and Tauc’s plot curves. The formation and morphology of the self-assembled structures of the Ag NPs were confirmed by optical and scanning electron microscopy. SERS and fluorescence spectroscopy were used to explore the nanoscale hierarchical structures composed of CQDs owing to their self-assembly in the presence of 6CHBT molecules. We highlighted the role of surface plasmons by characterizing surface-enhanced Raman spectroscopy. Elemental analysis of the sample through EDAX analysis and mass decomposition through TGA analysis were carried out. Thermal analysis of the phase transition was also highlighted in the DSC analysis.</p>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"20 9","pages":"7415 - 7432"},"PeriodicalIF":4.3,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090529","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