Long-range surface faceting induced by chemisorption of PTCDA on stepped Ag(111) surfaces
详细信息 查看全文
- 作者：Stefan Schmitt1 ; Achim Schö ; ll ; Eberhard Umbach
- 关键词：Faceting ; Ag(111) ; PTCDA ; LEED ; STM ; Chemisorption
- 刊名：Surface Science
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：643
- 期：Complete
- 页码：59-64
- 全文大小：1031 K
文摘
- •
PTCDA preferentially adsorbs on steps of vicinal Ag(111) surfaces.
- •
It bunches the steps to well defined facet planes.
- •
The development of the 16 occurring facets is studied in detail.
- •
The faceting mechanism is an orientational phase separation driven by different bonding strengths of PTCDA.
- •
The faceting minimizes the surface free energy.