A SCANNING TUNNELING MICROSCOPY CURRENT IMAGING TUNNELING SPECTROSCOPY INVESTIGATION OF AN ORGANIC MOLECULE-4-CYANO-4'-N-HEPTYLBIPHENYL

被引：10

作者：

OKUMURA, A

MIYAMURA, K

GOHSHI, Y

机构：

[1] Department of Industrial Chemistry, Faculty of Engineering, The University of Tokyo, Bunkyo, Tokyo 113

来源：

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS | 1990年 / 8卷 / 01期

关键词：

D O I：

10.1116/1.576358

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A current imaging tunneling spectroscopy (CITS) technique was applied to a scanning tunneling microscopy (STM) investigation of a liquid crystal: 4-cyano-4'-n-heptylbiphenyl adsorbed on cleaved surfaces of graphite under ambient conditions. Although STM images were highly variable, a molecular image of 7CB was observed. Current images showed contrast variation over the molecule and were dependent on the bias voltage. This result indicates that the CITS technique is effective for the investigation of local electronic properties of adsorbed molecules. © 1990, American Vacuum Society. All rights reserved.

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页码：625 / 627

页数：3

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