Molecular wire junctions: Tuning the conductance

被引：52

作者：

Mujica, V ^{[1
]}

Nitzan, A ^{[1
]}

Datta, S ^{[1
]}

Ratner, MA ^{[1
]}

Kubiak, CP ^{[1
]}

机构：

[1] Univ Cent Venezuela, Fac Ciencias Escuela Quim, Caracas 1020A, Venezuela

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2003年 / 107卷 / 01期

关键词：

D O I：

10.1021/jp0216427

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Junctions consisting of two electrodes and a single molecule acting as a wire can be investigated by scanning probe conductance measurements. The conductance for low temperature, short wire structures can be characterized by the elastic scattering of the electrons, as described by general Landauer formulas. Tuning the bridge energy levels either by field effect transistor (FET)-like behavior (charging) or by chemical bond formation can raise or lower the conductance by moving the poles of the molecular Green's function. For small molecular structures with particular HOMO/LUMO characteristics, functionalization might be a more effective means than Coulomb charging by external gates.

引用

页码：91 / 95

页数：5

共 77 条

[1] ''Coulomb staircase'' at room temperature in a self-assembled molecular nanostructure [J].

Andres, RP ;

Bein, T ;

Dorogi, M ;

Feng, S ;

Henderson, JI ;

Kubiak, CP ;

Mahoney, W ;

Osifchin, RG ;

Reifenberger, R .

SCIENCE, 1996, 272 (5266) :1323-1325

[2]

ANDRES RP, 1998, HDB NANOSTRUCTURED M

[3]

AVIRAM A, 1998, MOL ELECT SCI TECHNO, V852

[4]

AVIRAM A, IN PRESS ANN NEW YOR

[5] Logic circuits with carbon nanotube transistors [J].

Bachtold, A ;

Hadley, P ;

Nakanishi, T ;

Dekker, C .

SCIENCE, 2001, 294 (5545) :1317-1320

[6] A method for ab initio nonlinear electron-density evolution [J].

Baer, R ;

Gould, R .

JOURNAL OF CHEMICAL PHYSICS, 2001, 114 (08) :3385-3392

[7] Single-electron transport in ropes of carbon nanotubes [J].

Bockrath, M ;

Cobden, DH ;

McEuen, PL ;

Chopra, NG ;

Zettl, A ;

Thess, A ;

Smalley, RE .

SCIENCE, 1997, 275 (5308) :1922-1925

[8] CONDITIONS FOR CONDUCTANCE QUANTIZATION IN REALISTIC MODELS OF ATOMIC-SCALE METALLIC CONTACTS [J].

BRATKOVSKY, AM ;

SUTTON, AP ;

TODOROV, TN .

PHYSICAL REVIEW B, 1995, 52 (07) :5036-5051

[9] Are single molecular wires conducting? [J].

Bumm, LA ;

Arnold, JJ ;

Cygan, MT ;

Dunbar, TD ;

Burgin, TP ;

Jones, L ;

Allara, DL ;

Tour, JM ;

Weiss, PS .

SCIENCE, 1996, 271 (5256) :1705-1707

[10] Room-temperature negative differential resistance in nanoscale molecular junctions [J].

Chen, J ;

Wang, W ;

Reed, MA ;

Rawlett, AM ;

Price, DW ;

Tour, JM .

APPLIED PHYSICS LETTERS, 2000, 77 (08) :1224-1226

← 1 2 3 4 5 6 7 8 →