Metal nanoparticles prepared by excimer and solid state laser irradiation in silicate glass: dependence of atomic structure, strength of interaction with matrix and properties of nanoparticles upon their sizes, spatial configurations and the preparation p

硅酸盐玻璃中准分子和固态激光照射制备的金属纳米粒子：原子结构的依赖性、与基质的相互作用强度以及纳米粒子的性能对其尺寸、空间构型和制备方法的影响

• 批准号: 263542839
• 负责人: Privatdozent Dr. Manfred Dubiel
• 金额: --
• 依托单位: Russian Foundation for Basic Research
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2017-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/263542839?language=en
• 关键词: Metal; nanoparticles; prepared; excimer; solid

The basic relations between preparation conditions, atomic structure and optical properties should be revealed for Ag and Ag/Au nanoparticles and specific arrays as prepared by UV laser irradiation in glasses. Especially, ArF laser irradiation should allow the generation of high-resolution patterns of nanoparticles immediately below the surface of glasses, which are of specific interest because of their high potential for manifold applications of nanoplasmonics. The starting point are pure and Au containing glasses, which will be doped with silver ions by means of Ag/Na ion exchange processes. ArF excimer (193nm) and for comparison solid state laser irradiation (405nm) using fluences below the ablation threshold should provide the generation of stabilized nanoparticles based on detailed investigations of elementary processes of reduction of metal ions and the growth of particles under UV irradiation. The formation of UV defects, metal atoms and nanoparticles will be detected by optical spectroscopy and further methods.The precise sizes of particles and their distribution should be determined by means of SAXS, XRD and transmission electron microscopy experiments for some selected samples. The existence of homogeneous or of core-shell Ag/Au particles has to be clarified by anomalous small angle X-ray scattering (ASAXS) experiments at the Ag K-edge and the Au-L3-edge core and shell will be calculated separately by this method for such species. The X-ray absorption spectroscopy (XAS) at Ag K-edge and Au L3-edge will be applied to determine the inhomogeneous atomic structure of nanoparticles that is to be expected for all nanostructures. The structural information are to be obtained by two complementary approaches for the processing of experimental EXAFS spectra, which enables to determine local structure parameters of Ag and Au atoms existing in various species or local orders inside the particles. Furthermore, 3D models of very small (< 2-5 nm) Ag and Ag/Au nanoparticles will be constructed using the density functional theory (DFT) method using plane waves and pseudopotential formalisms and by the method of Langevin molecular dynamics. The simulation of optical spectra of surface plasmon resonances by means of Mie-Theory should reveal a direct correlation with the detailed structural results of metal nanostructures. This is to allow a defined generation of plasmonic spectra due to UV laser irradiation.

应揭示制备条件，原子结构和光学特性之间的基本关系，而Ag/Au纳米颗粒以及通过玻璃中的紫外线激光照射制备的特定阵列。特别是，ARF激光辐照应允许在玻璃表面以下的纳米颗粒的高分辨率模式产生，这是特定感兴趣的，因为它们在纳米疟疾的歧管施用的高潜力上。起点是纯净的，含有玻璃的AU，通过AG/NA离子交换过程将其用银离子掺杂。 ARF ICECIMER（193nm）和用于比较固态激光辐照（405nm），使用低于消融阈值的流量应基于对金属离子还原的基本过程的详细研究以及UV辐照下颗粒的生长的详细研究，以提供稳定的纳米颗粒的产生。紫外线缺陷，金属原子和纳米颗粒的形成将通过光谱和进一步的方法检测。颗粒的精确尺寸及其分布应通过SAXS，XRD和透射电子显微镜实验来确定某些选定样品。必须通过AG K-gedge的异常小角度X射线散射（ASAXS）实验来阐明同质或核壳Ag/Au颗粒的存在，并且该方法将通过此方法分别计算此类物种的方法。 将应用Ag K-Edge和Au L3边缘处的X射线吸收光谱（XAS）来确定所有纳米结构都可以预期的纳米颗粒的不均匀原子结构。结构信息应通过两种用于处理实验EXAFS光谱的补充方法获得，这使得能够确定存在于粒子内部各种物种或局部订单中的Ag和Au原子的局部结构参数。此外，将使用平面波和伪电势形式主义以及通过Langevin Molecular Dynamics的方法来构建非常小（<2-5 nm）Ag和Ag/Au纳米颗粒的3D模型。 通过MIE理论的表面等离子体共振的光谱的模拟应揭示与金属纳米结构的详细结构结果的直接相关性。这是为了允许由于紫外线激光照射而定义的等离子光谱。

项目成果

Investigation of gold and bimetallic gold/silver nanoparticles in soda-lime-silicate glasses formed by means of excimer laser irradiation

准分子激光辐照形成的钠钙硅酸盐玻璃中金和双金属金/银纳米粒子的研究

• DOI: 10.1117/12.2249751
• 发表时间: 2017
• 作者: M. Heinz;M. Dubiel;J. Meinertz;J. Ihlemann;A. Hoell
• 通讯作者: A. Hoell

Formation of silver nanoparticles in silicate glass using excimer laser radiation: Structural characterization by HRTEM, XRD, EXAFS and optical absorption spectra

使用准分子激光辐射在硅酸盐玻璃中形成银纳米颗粒：通过 HRTEM、XRD、EXAFS 和光学吸收光谱进行结构表征

• DOI: 10.1016/j.jallcom.2016.04.214
• 发表时间: 2016
• 期刊: Journal of Alloys and Compounds
• 影响因子: 6.2
• 作者: M. Heinz;V. V. Srabionyan;A. L. Bugaev;V. V. Pryadchenko;E. V. Ishenko;L. A. Avakyan;Y. V. Zubavichus;J. Ihlemann;J. Meinertz;E. Pippel;M. Dubiel;L. A. Bugaev
• 通讯作者: L. A. Bugaev

Formation of bimetallic gold-silver nanoparticles in glass by UV laser irradiation

• DOI: 10.1016/j.jallcom.2018.07.183
• 发表时间: 2018-10-30
• 期刊: JOURNAL OF ALLOYS AND COMPOUNDS
• 影响因子: 6.2
• 作者: Heinz, Maximilian;Srabionyan, Vasiliy V.;Bugaev, Lusegen A.
• 通讯作者: Bugaev, Lusegen A.

Insight on agglomerates of gold nanoparticles in glass based on surface plasmon resonance spectrum: study by multi-spheres T-matrix method

• DOI: 10.1088/1361-648x/aa9fcc
• 发表时间: 2018-01-31
• 期刊: JOURNAL OF PHYSICS-CONDENSED MATTER
• 影响因子: 2.7
• 作者: Avakyan, L. A.;Heinz, M.;Bugaev, L. A.
• 通讯作者: Bugaev, L. A.

Formation and implantation of gold nanoparticles by ArF-excimer laser irradiation of gold-coated float glass

• DOI: 10.1016/j.jallcom.2017.11.122
• 发表时间: 2018-03
• 期刊: Journal of Alloys and Compounds
• 影响因子: 6.2
• 作者: M. Heinz;V. Srabionyan;L. Avakyan;A. Bugaev;A. V. Skidanenko;V. Pryadchenko;J. Ihlemann;J. Meinertz;C. Patzig;M. Dubiel;L. Bugaev