Synthesis and Characterization of CQDs Obtained from Carbon Soot of Almond Oil and Its Hierarchical Arrangement in 6CHBT LC Media: Role of Functionalization

IF 4.3 4区物理与天体物理 Q2 CHEMISTRY, PHYSICAL

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

Manish Kumar Mishra, Satya Pal Singh

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引用次数: 0

Abstract

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.

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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

利用杏仁油碳烟沉积在铜金属表面合成了碳量子点（CQDs）。我们使用2,5-二巯基-1,3,4-噻二唑（DMTD）对CQDs进行了功能化，并探索了功能化CQDs在6CHBT LC介质中的整合。我们的主要目的是研究功能化CQDs对混合系统的组织行为和光电性能的影响。我们利用UV-Vis-NIR和Tauc曲线计算了合成CQDs和功能化CQDs的带隙等电子特性。通过光学显微镜和扫描电镜对银纳米粒子自组装结构的形成和形貌进行了验证。利用SERS和荧光光谱研究了CQDs在6CHBT分子存在下自组装形成的纳米级层次结构。我们通过表征表面增强拉曼光谱来强调表面等离子体的作用。通过EDAX分析对样品进行元素分析，通过TGA分析对样品进行质量分解。在DSC分析中也强调了相变的热分析。

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来源期刊

Plasmonics 工程技术-材料科学：综合

CiteScore

5.90

自引率

6.70%

发文量

164

审稿时长

2.1 months

期刊介绍： Plasmonics is an international forum for the publication of peer-reviewed leading-edge original articles that both advance and report our knowledge base and practice of the interactions of free-metal electrons, Plasmons. Topics covered include notable advances in the theory, Physics, and applications of surface plasmons in metals, to the rapidly emerging areas of nanotechnology, biophotonics, sensing, biochemistry and medicine. Topics, including the theory, synthesis and optical properties of noble metal nanostructures, patterned surfaces or materials, continuous or grated surfaces, devices, or wires for their multifarious applications are particularly welcome. Typical applications might include but are not limited to, surface enhanced spectroscopic properties, such as Raman scattering or fluorescence, as well developments in techniques such as surface plasmon resonance and near-field scanning optical microscopy.