Adsorption of pyrazine on a Si(001) surface partially covered with an indium dimer structure
Adsorption of pyrazine on a Si(001) surface partially covered with an indium dimer structure
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吡嗪在部分被铟二聚体结构覆盖的 Si(001) 表面上的吸附
DOI：
10.1143/jjap.51.055703
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发表时间：
2012
影响因子：
1.5
通讯作者：
Chihiro Kunihara
中科院分区：
文献类型：
--
作者：
Masaru Shimomura;Chihiro Kunihara
吡嗪在裸露的Si（001）-2× 1表面上穿过Si二聚体行形成分子一维（1D）线。铟还形成跨Si二聚体行的1D线。利用扫描隧道显微镜（STM）和X射线光电子能谱（XPS）研究了吡嗪在具有铟平行二聚体结构的Si（001）-2× 1表面上的吸附。扫描隧道显微镜发现，在吸附初期，吡嗪吸附物主要位于铟线结构的侧邻位。吡嗪的这种优先吸附可以促进吡嗪的长线性链沿着铟线的形成。
Pyrazine forms a molecular one-dimensional (1D) line on a bare Si (001)-2× 1 surface across the Si dimer row. Indium also forms a 1D line across the Si dimer row. In this study, the adsorption of pyrazine on a Si (001)-2× 1 surface on which the indium parallel dimer structure is formed was investigated using scanning tunneling microscopy (STM) and X-ray photoelectron spectroscopy (XPS). It was found by STM that pyrazine adsorbates were predominantly located at the lateral neighboring sites of the indium line structure during the initial stage of adsorption. This preferential adsorption of pyrazine can enhance the formation of long linear chains of pyrazine along the indium lines.