RUI: Response of Single- and Multi-Walled Fullerenes and Endohedral Fullerenes to Photons and Charged Particles
RUI:单壁和多壁富勒烯和内嵌富勒烯对光子和带电粒子的响应
基本信息
- 批准号:1100537
- 负责人:
- 金额:$ 17.1万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2011
- 资助国家:美国
- 起止时间:2011-09-01 至 2015-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The encapsulation of an atom or an atomic cluster, or even a smaller fullerene in a fullerene cage offers a unique natural laboratory in which to examine the behavior of the guest system in confinement. Studies of these endofullerenes can not only lead to intriguing effects at the atomic scale but also can probe subtleties of quantum effects in the nanometer region. The endo-fullerenes also hold the promise of exciting applications in areas including, quantum computations, superconductivity, biomedical fields, drug delivery research, magnetic resonance imaging, and organic photovoltaic devices. Further, the discovery of endo-fullerenes in extraterrestrial environments indicates their astrophysical relevance. Hence, understanding the influence of the confining cage on the spectroscopy of the confined species and vice versa, are matters of great scientific interest. A theoretical study of the response of these compounds to the external electromagnetic and charged particle fields will be performed in the current research. By employing this, the roles of (i) the collectivized plasmonic motion of electrons, (ii) the dopant-fullerene hybridization, and (iii) the oscillations due to multipath interferences between electrons liberated from various sites of the compound will be investigated. Spectroscopy of fullerenes and endo-fullerenes by fast, bare ion impact will also be considered to determine in detail the effects of dipole and non-dipole collective motions, and the interference between various multipole channels. Furthermore, calculations of the electron capture by positron impact on fullerenes and endo-fullerenes, forming positroniums, will be undertaken.
一个原子或一个原子簇,甚至是一个更小的富勒烯在一个富勒烯笼的封装提供了一个独特的天然实验室,在其中检查的行为的客人系统的限制。对这些富勒烯的研究不仅可以在原子尺度上产生有趣的效应,而且可以在纳米区域探测量子效应的微妙之处。内富勒烯在量子计算、超导性、生物医学领域、药物递送研究、磁共振成像和有机光伏器件等领域也有着令人兴奋的应用前景。 此外,在地外环境中发现内富勒烯表明了它们与天体物理学的相关性。因此,了解禁闭笼对禁闭物种光谱的影响,反之亦然,是具有重大科学意义的问题。本研究将从理论上研究这些化合物对外界电磁场和带电粒子场的响应。通过采用这种方法,(i)电子的集体化等离子体运动,(ii)掺杂剂-富勒烯杂化,以及(iii)由于从化合物的各个位点释放的电子之间的多径干扰而引起的振荡的作用将被研究。光谱的富勒烯和内富勒烯的快速,裸离子的影响也将被考虑到详细确定偶极和非偶极集体运动的影响,以及各种多极通道之间的干扰。此外,计算正电子对富勒烯和内富勒烯的影响,形成正电子鎓的电子捕获,将进行。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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HIMADRI CHAKRABORTY其他文献
HIMADRI CHAKRABORTY的其他文献
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{{ truncateString('HIMADRI CHAKRABORTY', 18)}}的其他基金
RUI: Photoinduced Ultrafast Relaxation, Ionization, and Impact-Induced Positronium Formation of Fullerene Class of Molecules
RUI:富勒烯类分子的光诱导超快弛豫、电离和碰撞诱导正电子形成
- 批准号:
2110318 - 财政年份:2021
- 资助金额:
$ 17.1万 - 项目类别:
Continuing Grant
RUI: Photoionization, Time Delay, Positronium Formation, and Ion Impact Studies of Fullerenes, Endofullerenes, and Atoms
RUI:富勒烯、内富勒烯和原子的光电离、时间延迟、正电子形成和离子撞击研究
- 批准号:
1806206 - 财政年份:2018
- 资助金额:
$ 17.1万 - 项目类别:
Standard Grant
RUI: Photon Impact Ionization of Fullerene and Endofullerene Molecules: Cross Sections, Resonances, and Time-Delays
RUI:富勒烯和内富勒烯分子的光子碰撞电离:横截面、共振和时间延迟
- 批准号:
1413799 - 财政年份:2014
- 资助金额:
$ 17.1万 - 项目类别:
Continuing Grant
Subshell Differential Photoionization Studies of Single- and Multi-Walled Fullerene Endohedrals
单壁和多壁富勒烯内面体的亚壳层差分光电离研究
- 批准号:
0758224 - 财政年份:2008
- 资助金额:
$ 17.1万 - 项目类别:
Continuing Grant
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