Orientation and stability of a bi-functional aromatic organic molecular adsorbate on silicon

被引：4
|
作者：
O'Donnell, K. M. [1 ]
Hedgeland, H. [2 ,6 ]
Moore, G. [2 ,3 ]
Suleman, A. [2 ,3 ]
Siegl, M. [2 ,3 ]
Thomsen, L. [4 ]
Warschkow, O. [5 ]
Schofield, S. R. [2 ,3 ]
机构：
[1] Curtin Univ, Dept Phys Astron & Med Radiat Sci, Bentley, WA 6102, Australia
[2] UCL, London Ctr Nanotechnol, London WC1H 0AH, England
[3] UCL, Dept Phys & Astron, Mortimer St, London WC1E 6BT, England
[4] Australian Synchrotron, Clayton, Vic 3168, Australia
[5] Univ Sydney, Sch Phys, Ctr Quantum Computat & Commun Technol, Sydney, NSW 2006, Australia
[6] Open Univ, Dept Phys Sci, Walton Hall, Milton Keynes MK7 6AA, Bucks, England
来源：
PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2016年 / 18卷 / 39期
基金：
英国工程与自然科学研究理事会; 澳大利亚研究理事会;
关键词：
SI(100)-2 X-1; AUSTRALIAN SYNCHROTRON; ADSORPTION; BENZONITRILE; ABSORPTION; DEVICES; BINDING; SURFACE; NEXAFS; FILMS;
D O I：
10.1039/c6cp04328c
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this work we combine scanning tunneling microscopy, near-edge X-ray absorption fine structure spectroscopy, X-ray photoemission spectroscopy and density functional theory to resolve a long-standing confusion regarding the adsorption behaviour of benzonitrile on Si(001) at room temperature. We find that a trough-bridging structure is sufficient to explain adsorption at low coverages. At higher coverages when steric hindrance prevents the phenyl ring lying flat on the surface, the 2+2 cycloaddition structure dominates.
引用
收藏
页码：27290 / 27299
页数：10
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