Development of multi-function integrated π-conjugated macromolecules toward the fusion of silicon- and molecular-nanotechnology

开发多功能集成π共轭高分子以实现硅纳米技术与分子纳米技术的融合

• 批准号: 13640587
• 负责人: TANAKA Shoji
• 金额: $ 2.3万
• 依托单位: Okazaki National Research Institutes
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13640587/
• 关键词: molecular-scale electronics; single-electron transistor; molecular device; molecular switch; self-assembly; oligothiophene; 分子組織化; 単分子エレクトロニクス; 分子集積化; 大型分子

The concept of molecular-scale electronics is now realized for individual components such as wire, diode, switch, and memory cell, but the fabrication of complete molecular-scale circuits remains challenging because of the difficulty of connecting molecular modules to one another. Molecular monolithic technology, which inte-grates the wiring, transistors and the required passive elements on a single macromolecule, has been proposed as a promising solution to this problem. In this project we have been trying to establish both the architecture of this novel class of macromolecules and the protocols for their purposive organization on metal/semiconductor substrate surfaces.The design of "planar and multi-function integrated" π-conjugated macromolecules has been a subject of intensive research in the field of molecular electronics, because of their potential applications as basic compo-nents for future IT hardware such as ultra-dense molecular-scale quantum computers. In order to establish the architecture for this class of tailor-made macromolecules, we have developed various types of molecular build-ing blocks and characterized them on substrate surfaces based on the high-resolution STM experiments combined with their bulk-level physical properties. We have established the synthetic routes of i) "molecule-anchor modules" for setting the molecular systems on metal/semiconductor substrate, and ii) "molecule-junction modules" for constructing planar grid-type molecular frameworks. Purification of these molecules was achieved by gel permeation chromatography. The purity of the obtained compounds was clearly reveled by MALDI-TOF mass spectroscopy using dithranol as matrix.

分子级电子学的概念现在已经实现了单个组件，如导线，二极管，开关和存储单元，但由于分子模块之间的连接困难，完整的分子级电路的制造仍然具有挑战性。分子单片集成技术是将布线、晶体管和所需的无源元件集成在一个大分子上的一种很有前途的解决方案。在本项目中，我们试图建立这类新型大分子的结构及其在金属/半导体衬底表面上的有目的的组织协议，“平面和多功能集成”的π共轭大分子的设计一直是分子电子学领域的研究热点，因为它们作为未来IT硬件（如超密度分子级量子计算机）的基本组件的潜在应用。为了建立这类定制大分子的结构，我们开发了各种类型的分子构建块，并根据高分辨率STM实验结合其体水平的物理性质在基底表面上表征它们。我们建立了i）将分子系统固定在金属/半导体衬底上的“分子锚模块”和ii）构建平面网格型分子框架的“分子结模块”的合成路线。通过凝胶渗透色谱法实现这些分子的纯化。以地蒽酚为基质，采用MALDI-TOF质谱法对所得化合物的纯度进行了确证。

项目成果

Shoji Tanaka: "Novel Synthetic Approaches to Multifunctional p-Conjugated Oligomers for Molecular Scale Electronics"Trans., Mater., Res., Soc., Jpn. 26. 739-740 (2001)

Shoji Tanaka：“用于分子级电子学的多功能 p 共轭低聚物的新颖合成方法”Trans., Mater., Res., Soc., Jpn.

Masamitsu Tachibana: "Small Bandgap Polymers Involving Tricyclic Nonclassical Thiophene as a Building Block"J.Phys.Chem. B. 106. 3549-3556 (2002)

Masamitsu Tachibana：“以三环非经典噻吩为结构单元的小带隙聚合物”J.Phys.Chem。

Masamitsu Tachibana: "Small Bandgap Polymers Involving Tricyclic Nonclassical Thiophene as a Building Block"J. Phys. Chem. B. (in press).

Masamitsu Tachibana：“以三环非经典噻吩为结构单元的小带隙聚合物”J。

Shoji Tanaka: "Small Bandgap Polymers Involving Tricyclic Nonclassical Thiophene as a Building Block"Synth.Met.. 119. 67-68 (2001)

Shoji Tanaka：“以三环非经典噻吩为结构单元的小带隙聚合物”Synth.Met.. 119. 67-68 (2001)

Masamitsu Tachibana: "Small Bandgap Polymers Involving Tricyclic Nonclassical Thiophene as a Building Block"J. Phys. Chem. B. 106. 3549-3556 (2002)

Masamitsu Tachibana：“以三环非经典噻吩为结构单元的小带隙聚合物”J。