SCANNING-TUNNELING-MICROSCOPY OBSERVATION AND THEORETICAL CALCULATION OF THE ADSORPTION OF ADENINE ON SI(100)2X1 SURFACES

被引：21
|
作者：
KASAYA, M [1 ]
TABATA, H [1 ]
KAWAI, T [1 ]
机构：
[1] OSAKA UNIV,INST SCI & IND RES,IBARAKI,OSAKA 567,JAPAN
来源：
SURFACE SCIENCE | 1995年 / 342卷 / 1-3期
关键词：
AROMATICS; SCANNING TUNNELING MICROSCOPY; SEMIEMPIRICAL MODELS AND MODEL CALCULATIONS; SILICON; SURFACE STRUCTURE; MORPHOLOGY; ROUGHNESS; AND TOPOGRAPHY;
D O I：
10.1016/0039-6028(96)80001-X
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：
Scanning tunneling microscopy (STM) images of adenine molecules on Si(100)2 X 1 surfaces have shown for the first time that the adenine is adsorbed on a Si dimer row. The double bright molecular images are located on the neighboring two Si dimer rows and have ellipsoidal shapes. An extended Huckel molecular orbital calculation of the adenine adsorbed on the Si cluster gives the form of the hybridized orbital in this system. This calculation explains the adsorption site and the surface local density of states corresponding to the observed STM images.
引用
收藏
页码：215 / 223
页数：9
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