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DOI | 10.1126/science.aaw8007 |
Three-orders-of-magnitude variation of carrier lifetimes with crystal phase of gold nanoclusters | |
Zhou, Meng1; Higaki, Tatsuya1; Hu, Guoxiang2; Sfeir, Matthew Y.3,4,5; Chen, Yuxiang1; Jiang, De-en2; Jin, Rongchao1 | |
2019-04-19 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2019 |
卷号 | 364期号:6437页码:279-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | We report a three-orders-of-magnitude variation of carrier lifetimes in exotic crystalline phases of gold nanoclusters (NCs) in addition to the well-known face-centered cubic structure, including hexagonal close-packed (hcp) Au-30 and body-centered cubic (bcc) Au-38 NCs protected by the same type of capping ligand. The bcc Au-38 NC had an exceptionally long carrier lifetime (4.7 microseconds) comparable to that of bulk silicon, whereas the hcp Au-30 NC had a very short lifetime (1 nanosecond). Although the presence of ligands may, in general, affect carrier lifetimes, experimental and theoretical results showed that the drastically different recombination lifetimes originate in the different overlaps of wave functions between the tetrahedral Au-4 building blocks in the hierarchical structures of these NCs. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000464956600049 |
WOS关键词 | ULTRAFAST RELAXATION DYNAMICS ; EXCITON RELAXATION ; LIGAND ; CLUSTER ; SIZE ; NANOPARTICLES ; STATE |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/201235 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Carnegie Mellon Univ, Dept Chem, 4400 5th Ave, Pittsburgh, PA 15213 USA; 2.Univ Calif Riverside, Dept Chem, Riverside, CA 92521 USA; 3.Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA; 4.CUNY, Photon Initiat, Adv Sci Res Ctr, New York, NY 10031 USA; 5.CUNY, Grad Ctr, Dept Phys, New York, NY 10016 USA |
推荐引用方式 GB/T 7714 | Zhou, Meng,Higaki, Tatsuya,Hu, Guoxiang,et al. Three-orders-of-magnitude variation of carrier lifetimes with crystal phase of gold nanoclusters[J]. SCIENCE,2019,364(6437):279-+. |
APA | Zhou, Meng.,Higaki, Tatsuya.,Hu, Guoxiang.,Sfeir, Matthew Y..,Chen, Yuxiang.,...&Jin, Rongchao.(2019).Three-orders-of-magnitude variation of carrier lifetimes with crystal phase of gold nanoclusters.SCIENCE,364(6437),279-+. |
MLA | Zhou, Meng,et al."Three-orders-of-magnitude variation of carrier lifetimes with crystal phase of gold nanoclusters".SCIENCE 364.6437(2019):279-+. |
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