Two-dimensional molecular array of porphyrin derivatives with bright and dark spots as a model of two-digit molecular-dot memory

被引：13

作者：

Hill, Jonathan P. ^{[1
]}

Wakayama, Yutaka ^{[2
]}

Akada, Misaho ^{[1
]}

Ariga, Katsuhiko ^{[1
]}

机构：

[1] Natl Inst Mat Sci, World Premier Int WPI Res Ctr Mat Nanoarchitecton, Tsukuba, Ibaraki 3050044, Japan

[2] Natl Inst Mat Sci, Adv Elect Mat Ctr, Tsukuba, Ibaraki 3050044, Japan

来源：

SYNTHETIC METALS | 2009年 / 159卷 / 9-10期

关键词：

Porphyrin; Scanning tunneling microscopy; Molecular array; Two-dimensional pattern; Information density; CONFORMATION; ADSORPTION; LATTICE; STATE;

D O I：

10.1016/j.synthmet.2008.12.016

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Scanning tunneling microscopic (STM) observation of an array of 5,10,15,20-tetrakis(3,5-di-tert-butyl-4-hydroxyphenyl)porphyrin molecules deposited on a Au(111) surface revealed dark and bright spots within the regular two-dimensional pattern, which are due to conformational diversity of the adsorbed molecules caused by distortion of the porphyrin core. With this structure, two-digit information can be input with ca. 2-nm interval, which would correspond to an information density of 25 terabit/cm(2) if exploited in a memory device. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：765 / 768

页数：4

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