Molecular optical gating devices based on polymer nanosheets assemblies

被引：91

作者：

Matsui, J ^{[1
]}

Mitsuishi, M ^{[1
]}

Aoki, A ^{[1
]}

Miyashita, T ^{[1
]}

机构：

[1] Tohoku Univ, IMRAM, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2004年 / 126卷 / 12期

关键词：

D O I：

10.1021/ja039871+

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We describe here a polymer nanosheet assembly that serves as a molecular photoswitching and optical exclusive OR (EXOR) logic gate. Separate polymer nanosheets (monolayers) containing phenanthrene, anthracene, and dinitrobenzene chromophore were prepared by the Langmuir?Blodgett technique (LB films). A bilayer-couple, consisting of phenanthrene (sensitizer) monolayer and dinitrobenzene (acceptor) monolayer, and the other couple, of anthracene monolayer and dinitrobenzene monolayer, were confirmed to function as a photodiode showing current rectification on light irradiation. The two photodiodes are connected as each photocurrent direction becomes opposite. In the polymer photodiode array (LB films), anodic photocurrent was observed when the anthracene was selectively excited. On the other hand, cathodic photocurrent was observed by selective excitation of the phenanthrene. Moreover, the output photocurrent displayed a very small value when the phenanthrene and anthracene were excited simultaneously. The performance is discussed for this gate's application to an optical EXOR logic gate. Copyright © 2004 American Chemical Society.

引用

页码：3708 / 3709

页数：2

共 22 条

[1] Effective photoinduced electron transfer in hetero-deposited redox polymer LB films [J].