Giant resonances and giant dipoles: Cluster-beam spectroscopy of metal nanoparticle ions and amino acid zwitterions

巨共振和巨偶极子：金属纳米粒子离子和氨基酸两性离子的簇束光谱

• 批准号: 0354834
• 负责人: Vitaly Kresin
• 金额: --
• 依托单位: University of Southern California
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-07-01 至 2008-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0354834&HistoricalAwards=false
• 关键词: Giant; resonances; giant; dipoles; Cluster

This project focuses on the study of the electronic and structural properties of size-resolved clusters, which possess large static or dynamic electric dipole moments. The experiments will be carried out on free clusters in beams. The following topics will be explored: (i) the electronic surface structure of sliver and gold nanoclusters, specifically, the screening parameters of s- and d-electrons in the surface region; (ii) the influence of adsorbed molecules on the optical spectra of such clusters; (iii) the formation of dipolar amino acid zwitterions in water clusters. The broader impacts involve education of both undergraduate and graduate students, encouragement of diversity and outreach to local high school students.

该项目的重点是对具有较大静态或动态电偶极矩的尺寸分辨簇的电子和结构特性的研究。实验将在梁中的自由簇上进行。将探讨以下主题：（i）Sliver和Gold Nanoclusters的电子表面结构，特别是表面区域中S-和D电子的筛选参数； （ii）吸附分子对此类簇光谱的影响； （iii）在水簇中形成偶极氨基酸z连锁。更广泛的影响涉及对本科生和研究生的教育，鼓励多样性和向当地高中生的宣传。