PHOTOISOMERIZATION OBSERVED BY MEANS OF SCANNING-TUNNELING-MICROSCOPY

被引：9

作者：

UMEMOTO, T ^{[1
]}

ISHIKAWA, K ^{[1
]}

TAKEZOE, H ^{[1
]}

FUKUDA, A ^{[1
]}

SASAKI, T ^{[1
]}

IKEDA, T ^{[1
]}

机构：

[1] TOKYO INST TECHNOL,RESOURCES UTILIZAT RES LAB,MIDORI KU,YOKOHAMA,KANAGAWA 227,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1993年 / 32卷 / 7A期

关键词：

SCANNING TUNNELING MICROSCOPY; PHOTOISOMERIZATION; LIQUID CRYSTAL; AZOBENZENE;

D O I：

10.1143/JJAP.32.L936

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have studied the interfacial structure of a photochromic molecule, 4,4'-dioctyloxyazobenzene (8AB8), on molybdenum disulphide by means of scanning tunneling microscopy (STM) with molecular resolution. We found at least two interfacial structures. The STM image of one of the structures was easily distorted upon irradiation with UV light, while that of the other structure was quite stable under UV light irradiation. In a wide area of several hundred nanometers, we observed that some steps with equal height changes of 1.1 nm moved during the irradiation. We interpreted that trans-cis photoisomerization causes molecular layers to be torn off one by one.

引用

页码：L936 / L939

页数：4

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