Adsorption of lead phthalocyanine on the hydrogen-passivated Ge(001)-2x1 surface

被引：1
作者：
Holland, B. N. [1 ]
Gavrila, G. [2 ]
Zahn, D. R. T. [2 ]
Cafolla, A. A. [3 ]
McGuinness, C. [1 ]
McGovern, I. T. [1 ]
机构：
[1] Trinity Coll Dublin, Sch Phys, Dublin 2, Ireland
[2] Tech Univ, Inst Phys, Chemnitz, Germany
[3] Dublin City Univ, Sch Phys Sci, Dublin, Ireland
来源：
PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 7, NO 2 | 2010年 / 7卷 / 02期
基金：
爱尔兰科学基金会;
关键词：
SCANNING-TUNNELING-MICROSCOPY; METAL PHTHALOCYANINES; COPPER PHTHALOCYANINE; TERMINATED SI(111); SILICON SURFACES; GRAPHITE; GROWTH; FILMS; STM; X-1;
D O I：
10.1002/pssc.200982463
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The adsorption of lead phthalocyanine (PbPc) on the hydrogen passivated Ge(001)-2x1 surface is investigated by photoelectron spectroscopy, scanning tunnelling microscopy and near-edge absorption fine structure (NEXAFS) techniques. The substrate-molecule interaction is observed to be weak, with the molecule-molecule interaction predominantly determining the ordering at the interface. The molecules in the first observable islands adopt a crystal structure similar to the bulk triclinic structure, with the stacking axis parallel to the substrate. Adlayers are similar to 0.8 nm in height and the average tilt in thicker layers, as determined by NEXAFS, is consistent with this crystal structure. However, the first island height observed is similar to 1.6 nm, which is considered to be a bilayer of PbPc molecules; the average tilt in these initial layers is slightly larger. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码：218 / 221
页数：4
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