Electronic Transport of a Molecular Photoswitch with Graphene Nanoribbon Electrodes  

作　　者：吴秋华 赵朋 刘德胜 

机构地区：[1]School of Physics and Technology, University of Jinan, Jinan 250022 [2]School of Physics, Shandong University, Jinan 250100 [3]Department of Physics, Jining University, Qufu 273155

出　　处：《Chinese Physics Letters》2014年第5期144-147,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 11104115 and 11374183, the Science Foun- dation of Middle-aged and Young Scientist of Shandong Province under Grant No BS2013DX036, and the Doctoral Foundation of University of Jinan under Grant No XBS1004.

摘　　要：Based on non-equilibrium Green＇s function formalism and density functional theory calculations, we investigate the electronic transport properties of 15,16dinitrile dihydropyrene/cyclophanediene bridged between two zigzag graphene nanoribbon electrodes. Our results demonstrate that the system can exhibit good switching behavior with the maximum on-off ratio high up to 146 which is improved dramatically compared with the case of gold electrodes. Moreover, an obvious negative differential resistance behavior occurs at 0.3 V, making the system have more potential in near future molecular circuits.Based on non-equilibrium Green＇s function formalism and density functional theory calculations, we investigate the electronic transport properties of 15,16dinitrile dihydropyrene/cyclophanediene bridged between two zigzag graphene nanoribbon electrodes. Our results demonstrate that the system can exhibit good switching behavior with the maximum on-off ratio high up to 146 which is improved dramatically compared with the case of gold electrodes. Moreover, an obvious negative differential resistance behavior occurs at 0.3 V, making the system have more potential in near future molecular circuits.

分 类 号：TN4[电子电信—微电子学与固体电子学] O646.5[理学—物理化学]