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| 电势降落对DNA分子器件电荷输运的影响 | |
| 引用本文： | 康大伟,孙孟乐,尤景汉,姬江涛.电势降落对DNA分子器件电荷输运的影响[J].河南科技大学学报(自然科学版),2012,33(3):85-88,114,115. |
| 作者姓名： | 康大伟 孙孟乐 尤景汉 姬江涛 |
| 作者单位： | 1. 河南科技大学物理与工程学院,河南洛阳,471003 2. 洛阳理工学院数理部,河南洛阳,471023 3. 河南科技大学车辆与动力工程学院,河南洛阳,471003 |
| 基金项目： | 国家自然科学基金，河南省科技攻关项目，河南省教育厅自然科学研究项目 |
| 摘 要： | 基于晶格格林函数和Landauer-Büttiker公式,研究了脱氧核糖核酸分子器件在不同电势降落下的电荷输运性质。界面处的电势降落可以导致负微分电导现象的出现,而且随着电势降落在脱氧核糖核酸分子上的比例的提高,这个效应更加明显。电势降落导致的分子轨道的局域化是产生负微分电导现象的关键因素。 |
| 关 键 词： | 格林函数 脱氧核糖核酸 分子器件 电势降落 局域化 |
Effect of Voltage Drop at Interface on Charge Transport Property of DNA Molecular Device |
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| KANG Da-Wei,a,SUN Meng-Le,YOU Jing-Han,a,JI Jiang-Tao.Effect of Voltage Drop at Interface on Charge Transport Property of DNA Molecular Device[J].Journal of Henan University of Science & Technology:Natural Science,2012,33(3):85-88,114,115. | |
| Authors: | KANG Da-Wei a SUN Meng-Le YOU Jing-Han a JI Jiang-Tao |
| Institution: | 1b (1a.Physics & Engineering School;1b.Vehicle & Motive Power Engineering School,Henan University of Science & Technology,Luoyang 471003,China;2.Department of Mathematics & Physics,Luoyang Institute of Science & Technology,Luoyang 471023,China) |
| Abstract: | The charge transport properties of deoxyribonucleic acid(DNA) molecular device at different voltage drop were studied based on the lattice Green function and Landauer-Büttiker formula.The voltage drop on the DNA molecule results in the negative differential conductance which becomes more prominent when the voltage drop increases.The localization of molecular orbital is the key point of the negative differential conductance. |
| Keywords: | Green function Deoxyribonucleic acid Molecular device Voltage drop Localization |
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