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Devices on molecular and DNA levels

分子和 DNA 水平的设备

基本信息

批准号：
13GS0017
负责人：
FUJIHIRA Masamichi
金额：
$ 257.92万
依托单位：
Tokyo Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Creative Scientific Research
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2005
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13GS0017/
关键词：
molecular devices single molecular junctions atomic scale chemical recognition DNA charge transport scanning probe microscopes hoto-electric conversion atomic scale mechanical properties UHV-STM STMブレイクジャンクション法三つ組分子超平坦化電極分子コーミング

项目摘要

Properties of functional molecules for electronics and photonics and those of biological supramolecules such as DNA and proteins have been studied for a long time as their average properties of a large number of molecules. The study of an isolated single molecule has recently begun by the use of spectroscopic methods or various scanning probe microscopes.In this study, a variety of devices on molecular and DNA levels will be pursued by i) exploring novel electronic, optic, chemical, and mechanical functions of single molecules experimentally, ii) envisaging application of such novel functions to various single molecular devices, iii) developing new processes and fabrication methods of nanostructures for the devices, iv) characterizing the nanostructures and measuring device characteristics, and v) rationalizing the device characteristics and in addition predicting unknown device characteristics theoretically.Through the five years projects, almost all of the above-described purposes in … More the present study have been realized under the strong cooperative research activities among the team members. The results obtained during the projects have been reported as 102 of original papers, review articles, and book chapters including 31 representative original papers. In particular, the followings are prominent achievements of the project. i) isolation of single functional molecules in matrices of a self-assembled monolayer (SAM) of a newly synthesized spherical hydrocarbon (BCO) thiol derivative on Au(111) and observation of their behavior with a scanning tunneling microscope (SPM), ii) discovery of effect of conformational change (trans to gauche) in an alkyl (or alkylene) chain of alkane thiol (or dithiol) on their single molecular conductance and the theoretical interpretation, iii) detailed researches on the effect of binding modes on single molecular conductance, iv) observation of terminal groups at atomic or molecular resolution in a mixed SAM using a non-contact AFM modified with a tip with a CaF_2 nano-crystal, v) fabrication of planer nano-gap electrodes for single molecular devices, vi) prediction of quantum loop current in a single molecular junction, and vii) theoretical study of electron-vibration coupling on carrier transfer in molecular bridges. Less

电子学和光子学的功能分子的性质以及诸如DNA和蛋白质的生物超分子的性质作为大量分子的平均性质已经被研究了很长时间。近年来，人们开始利用光谱学方法或各种扫描探针显微镜对单个分子进行研究，本研究将在分子和DNA水平上探索各种器件，i）通过实验探索单分子的新的电子、光学、化学和机械功能，ii）设想这些新功能在各种单分子器件中的应用，iii）开发用于器件的纳米结构的新工艺和制造方法，iv）表征纳米结构并测量器件特性，以及v）使器件特性合理化并另外从理论上预测未知的器件特性。 ...更多信息本研究是在团队成员的大力合作下完成的。在项目期间获得的结果已被报告为102篇原创论文，评论文章和书籍章节，其中包括31篇代表性原创论文。特别是，以下是该项目的突出成就。i）在Au（111）上新合成的球形烃（BCO）硫醇衍生物的自组装单层（SAM）基质中分离单功能分子，并用扫描隧道显微镜（SPM）观察它们的行为，ii）发现构象变化的影响（反式至左式）在烷基中链烷硫醇（或亚烷基）链（或二硫醇）对它们的单分子电导和理论解释，iii）详细研究了不同结合方式对单分子电导的影响; iv）利用非接触式原子力显微镜（AFM）对混合自组装膜中的端基进行原子或分子分辨率的观察，v）用于单分子器件的平面纳米间隙电极的制造，vi）单分子结中的量子回路电流的预测，以及vii）分子桥中载流子转移的电子-振动耦合的理论研究。少

项目成果

期刊论文数量（53）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Efficient method for simulating quantum electron dynamics under the time-dependent Kohn-Sham equation.

DOI：
10.1103/physreve.65.036705
发表时间：
2001-12
期刊：
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子：
0
作者：
N. Watanabe;M. Tsukada
通讯作者：
N. Watanabe;M. Tsukada

Motions of single molecules inserted in a self-assembled monolayer matrix of a bicyclo[2.2.2] octane derivative on Au(l 11)

Au(l 11) 上双环[2.2.2]辛烷衍生物自组装单层基质中插入单分子的运动

DOI：
发表时间：
2003
期刊：
Nanotechnology 14
影响因子：
0
作者：
Masaru Sakomura;Kazuyoshi Ueda;Masamichi Fujihira;S.Wakamatsu;S.Wakamatsu;S. Wakamatsu
通讯作者：
S. Wakamatsu

Dynamics of Photoinduced Electron Transfer in an Amphiphilic A^<2+>-S-D Triad Molecule

两亲性A^<2>-S-D三联体分子中光致电子转移的动力学

DOI：
发表时间：
2002
期刊：
J.Phys.Chem.A 106
影响因子：
0
作者：
Masaru Sakomura;Kazuyoshi Ueda;Masamichi Fujihira;S.Wakamatsu;S.Wakamatsu;S. Wakamatsu;T. Senda;M.Sakomura
通讯作者：
M.Sakomura

M.Sakomura, S.Lin, T.A.Moore, A.L.Moore, D.Gust, M.Fujihira: "Dynamics of Photoinduced Electron Transfer in an Amphiphilic A^<2+>S-D Triad Molecule"J. Phys. Chem.. 106. 2218-2226 (2002)

M.Sakomura、S.Lin、T.A.Moore、A.L.Moore、D.Gust、M.Fujihira：“两亲性 A^<2>S-D 三联体分子中光致电子转移的动力学”J。