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题名: Kinetic Simulation of Gold Nanorod Growth in Solution Based on Optical Spectra
作者: Wang, Ying-ying1;  Li, Bo-xuan1;  Vdovic, Silvije1;  Wang, Xue-fei1;  Xia, An-dong1
关键词: Gold nanorod ;  Growth mechanism ;  Charge transfer
刊名: CHINESE JOURNAL OF CHEMICAL PHYSICS
发表日期: 2012-04-01
DOI: 10.1088/1674-0068/25/02/135-141
卷: 25, 期:2, 页:135-141
收录类别: SCI
文章类型: Article
类目[WOS]: Physics, Atomic, Molecular & Chemical
研究领域[WOS]: Physics
英文摘要: By monitoring the time evolution of the optical absorption spectrum corresponding to dynamic information of aspect ratio (AR) and volume, we succeeded in following the growth kinetics of gold nanorods. The results indicate that the rods growth consists of two stages: seeds develop into rods with a fast AR increase and the rods grow big with constant AR. Here, a charge transfer model, involving positive charge transfer from Au(I) to seed and neutralization by electron from ascorbic acid, has been introduced to explain the autocatalysis mechanism of rod growth. The good agreement between the numerical simulation based on this moldel and experimental results supports the proposed mechanism.
关键词[WOS]: SEED-MEDIATED GROWTH ;  SHAPE ;  SIZE ;  NANOPARTICLES ;  ABSORPTION ;  CHEMISTRY ;  MECHANISM ;  SURFACES ;  LENGTH ;  FIELD
语种: 英语
WOS记录号: WOS:000304381000003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142933
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing 100190, Peoples R China

Recommended Citation:
Wang, Ying-ying,Li, Bo-xuan,Vdovic, Silvije,et al. Kinetic Simulation of Gold Nanorod Growth in Solution Based on Optical Spectra[J]. CHINESE JOURNAL OF CHEMICAL PHYSICS,2012,25(2):135-141.
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