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题名: Investigation of structure and chemical states of self-assembled - Au nanoscale particles by angle-resolved X-ray photoelectron spectroscopy
作者: Huang, XH;  Huang, HZ;  Wu, NZ;  Hu, RS;  Zhu, T;  Liu, ZF
关键词: gold ;  self-assembly ;  X-ray photoelectron spectroscopy
刊名: SURFACE SCIENCE
发表日期: 2000-07-01
卷: 459, 期:1-2, 页:183-190
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical ;  Physics, Condensed Matter
研究领域[WOS]: Chemistry ;  Physics
英文摘要: The surface structure of the silane self-assembled monolayer (SAM) prepared by 3-mercaptopropyl-trimethyl-silane (MPTMS) on Si(111) and the chemical states of the self-assembled Au nanoparticles absorbed onto the surface of the silane SAM were studied by angle-resolved X-ray photoelectron spectroscopy. The thickness of the silane SAM was determined as the vertical distance between sulfur atoms on the surface of the silane SAM and the surface of the SiO2 overlayer on the silicon substrate, and had a value of 4.7 Angstrom. In addition, two types of sulfur species were detected in the self-assembled Au nanoparticles at an electron take-off angle of 5 degrees. These species are assigned as bound thiolate and unbound thiol with S 2p binding energies of 162.6 eV and 164.6 eV respectively. The assignments indicate that the gold-thiolate bond was formed when Au nanoparticles were assembled onto the surface of the silicon substrate through MPTMS as a coupling agent. (C) 2000 Elsevier Science B.V. All rights reserved.
关键词[WOS]: WETTING PROPERTIES ;  METAL-SURFACES ;  ORGANIC MONOLAYERS ;  COLLOID MONOLAYERS ;  GOLD SURFACES ;  CYTOCHROME-C ;  FILMS ;  ALKANETHIOLS ;  ORGANIZATION ;  DISULFIDES
语种: 英语
WOS记录号: WOS:000088141400023
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138659
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.Peking Univ, Inst Chem Phys, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100871, Peoples R China
2.Peking Univ, Ctr Nanoscale Sci & Technol, Beijing 100871, Peoples R China

Recommended Citation:
Huang, XH,Huang, HZ,Wu, NZ,et al. Investigation of structure and chemical states of self-assembled - Au nanoscale particles by angle-resolved X-ray photoelectron spectroscopy[J]. SURFACE SCIENCE,2000,459(1-2):183-190.
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