利用导电探针原子力显微镜(CP-AFM)构成金属电极/烷基硫醇饱和分子的自组装单分子膜/金属电极的三层结构,研究了该类分子结的电荷输运.利用该结构测量了该分子结的I-V特性.实验结果表明分子结电导随分子长度的增长指数衰减,并且证实隧穿为饱和分子结中的主要电荷传输机制.同时,实验结果表明该分子结存在明显的整流效应,对该饱和分子结的整流特性进行了理论分析.
参考文献
| [1] | Aviram A;Ratner M A .Molecular Rectifiers[J].Chemical Physics Letters,1974,292(02):277. |
| [2] | Reed M A .Molecular Electronics:Back under control[J].Nature Materials,2004,3(05):286. |
| [3] | Service R F .Assembling Nanocircuits From the Bottom Up[J].Science,2001,293(5531):782. |
| [4] | Wold D J;Haag R;Rampi M A et al.Distance Dependence of Electron Tunneling through Self-Assembled Monolayers Measured by Conducting Probe Atomic Force Microscopy:Unsaturated versus Saturated Molecular Junctions[J].Journal of Physical Chemistry B,2002,106(11):2813. |
| [5] | Reichert J.;Ochs R.;Beckmann D.;Weber HB.;Mayor M.;von Lohneysen H. .Driving current through single organic molecules - art. no. 176804[J].Physical review letters,2002(17):6804-0. |
| [6] | Abraham Ulman .Formation and Structure of Self-Assembled Monolayers[J].Chemical Reviews,1996(4):1533-1554. |
| [7] | Sze S M.Physics of Semiconductor Devices[M].New York:wiley,1981 |
| [8] | Wang W;Lee T;Reed M A .Mechanism of electron conduction in self-assembled alkanethiol monolayer devices[J].Physical Review B,2003,68(03):035416. |
| [9] | Wenyong Wang;Takhee Lee;Mark A. Reed .Comment on "Fabrication of a Molecular Self-Assembled Monolayer Diode Using Nanoimprint Lithography"[J].Nano letters,2004(3):533-0. |
| [10] | Lee T;Wang W;Klemic J F et al.Comparison of Electronic Transport Characterization Methods for Alkanethiol Self-Assembled monolayers[J].Journal of Physical Chemistry B,2004,108(25):8742. |
| [11] | Adi Salomon;David Cahen;John Tomfohr;Aincent B. Engelkes;C. Daniel Frisbie .Comparison of Electronic Transport Measurements on Organic Molecules[J].Advanced Materials,2003(22):1881-1890. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%