Ultrafast Relaxation Dynamics of Au-38(SC2H4Ph)(24) Nanoclusters and Effects of Structural Isomerism
文献类型：期刊论文
| 作者 | Zhou, Meng1; Tian, Shubo2; Zeng, Chenjie1; Sfeir, Matthew Y.3; Wu, Zhikun2 ; Jin, Rongchao1
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| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| 出版日期 | 2017-05-25 |
| 卷号 | 121期号:20页码:10686-10693 |
| DOI | 10.1021/acs.jpcc.6b10360 |
| 文献子类 | Article |
| 英文摘要 | Structural isomerism in nanoparticles has recently emerged as a new topic and stimulated research interest because the atomic structures of ultrasmall nanoparticles may have great impact on their fundamental properties and applications. Here we report the correlation between ultrafast relaxation dynamics and atomic structures of two isomers of thiolate-protected Au-38(SC2H4Ph)(24). The bi-icosahedral Au-38 (denoted as Au(38)Q) with a Au-23 inner core in its atomic structure shows rapid decay (1.5 ps) followed by nanosecond relaxation to the ground state, whereas its structural isomer (Au-38T) exhibits similar relaxation processes, but the rapid decay is accelerated by similar to 50% (1.0 ps). The picosecond relaxations in both cases can be assigned to core shell charge transfer or electronic rearrangement within the metal core. The acceleration of the fast decay in AU(38T) is ascribed to its unique core structure, which is made up of a mono-icosahedral Au-13 capped by a Au-12 trketrahedron by sharing two atoms. Interestingly, coherent phonon emissions (25 cm(-1) for AU(38)Q 27 and 60 cm (-1) for Au38T) are observed in both isomers with pumping in the NIR region. Our results illustrate for the first time the importance of atomic structures in the photophysics of same sized gold nanoclusters. |
| WOS关键词 | THIOLATE-PROTECTED AU-38 ; GOLD NANOCLUSTERS ; ATOMIC PRECISION ; CLUSTERS ; NANOPARTICLES ; METAL ; TIME ; SPECTROSCOPY ; STATE ; EVOLUTION |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000402497700009 |
| 资助机构 | Air Force Office of Scientific Research under AFOSR Award(FA9550-11-1-9999 (FA9550-11-1-0147)) ; Air Force Office of Scientific Research under AFOSR Award(FA9550-11-1-9999 (FA9550-11-1-0147)) ; Air Force Office of Scientific Research under AFOSR Award(FA9550-11-1-9999 (FA9550-11-1-0147)) ; Air Force Office of Scientific Research under AFOSR Award(FA9550-11-1-9999 (FA9550-11-1-0147)) ; Defense University Research Instrumentation Program ; Defense University Research Instrumentation Program ; Defense University Research Instrumentation Program ; Defense University Research Instrumentation Program ; Camille Dreyfus Teacher-Scholar Awards Program ; Camille Dreyfus Teacher-Scholar Awards Program ; Camille Dreyfus Teacher-Scholar Awards Program ; Camille Dreyfus Teacher-Scholar Awards Program ; Natural Science Foundation of China(21222301 ; Natural Science Foundation of China(21222301 ; Natural Science Foundation of China(21222301 ; Natural Science Foundation of China(21222301 ; Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXCX002) ; Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXCX002) ; Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXCX002) ; Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXCX002) ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; Hundred Talents Program of the Chinese Academy of Sciences ; Hundred Talents Program of the Chinese Academy of Sciences ; Hundred Talents Program of the Chinese Academy of Sciences ; Hundred Talents Program of the Chinese Academy of Sciences ; 21171170 ; 21171170 ; 21171170 ; 21171170 ; 21528303) ; 21528303) ; 21528303) ; 21528303) ; Air Force Office of Scientific Research under AFOSR Award(FA9550-11-1-9999 (FA9550-11-1-0147)) ; Air Force Office of Scientific Research under AFOSR Award(FA9550-11-1-9999 (FA9550-11-1-0147)) ; Air Force Office of Scientific Research under AFOSR Award(FA9550-11-1-9999 (FA9550-11-1-0147)) ; Air Force Office of Scientific Research under AFOSR Award(FA9550-11-1-9999 (FA9550-11-1-0147)) ; Defense University Research Instrumentation Program ; Defense University Research Instrumentation Program ; Defense University Research Instrumentation Program ; Defense University Research Instrumentation Program ; Camille Dreyfus Teacher-Scholar Awards Program ; Camille Dreyfus Teacher-Scholar Awards Program ; Camille Dreyfus Teacher-Scholar Awards Program ; Camille Dreyfus Teacher-Scholar Awards Program ; Natural Science Foundation of China(21222301 ; Natural Science Foundation of China(21222301 ; Natural Science Foundation of China(21222301 ; Natural Science Foundation of China(21222301 ; Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXCX002) ; Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXCX002) ; Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXCX002) ; Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXCX002) ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; Hundred Talents Program of the Chinese Academy of Sciences ; Hundred Talents Program of the Chinese Academy of Sciences ; Hundred Talents Program of the Chinese Academy of Sciences ; Hundred Talents Program of the Chinese Academy of Sciences ; 21171170 ; 21171170 ; 21171170 ; 21171170 ; 21528303) ; 21528303) ; 21528303) ; 21528303) |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/31938]  |
| 专题 | 合肥物质科学研究院_中科院固体物理研究所 |
| 作者单位 | 1.Carnegie Mellon Univ, Dept Chem, 4400 5th Ave, Pittsburgh, PA 15213 USA 2.Chinese Acad Sci, Inst Solid State Phys, CAS Ctr Excellence Nanosci, Key Lab Mat Phys,Anhui Key Lab Nanomat & Nanotech, Hefei 230031, Anhui, Peoples R China 3.Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA |
| 推荐引用方式 GB/T 7714 | Zhou, Meng,Tian, Shubo,Zeng, Chenjie,et al. Ultrafast Relaxation Dynamics of Au-38(SC2H4Ph)(24) Nanoclusters and Effects of Structural Isomerism[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2017,121(20):10686-10693. |
| APA | Zhou, Meng,Tian, Shubo,Zeng, Chenjie,Sfeir, Matthew Y.,Wu, Zhikun,&Jin, Rongchao.(2017).Ultrafast Relaxation Dynamics of Au-38(SC2H4Ph)(24) Nanoclusters and Effects of Structural Isomerism.JOURNAL OF PHYSICAL CHEMISTRY C,121(20),10686-10693. |
| MLA | Zhou, Meng,et al."Ultrafast Relaxation Dynamics of Au-38(SC2H4Ph)(24) Nanoclusters and Effects of Structural Isomerism".JOURNAL OF PHYSICAL CHEMISTRY C 121.20(2017):10686-10693. |
入库方式： OAI收割
来源：合肥物质科学研究院
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