,Electronic Transport of a Molecular Photoswitch with Graphene Nanoribbon Electrodes

• 作 者: WU Qiu-Hua ZHAO Peng LIU De-Sheng
• 机 构: School of Physics and Technology, University of Jinan, Jinan 250022“,”School of Physics, Shandong Un
• 出 处: 中国物理快报（英文版）
• 发表日期: 2014年5期

Based on non-equilibrium Greens function formalism and density functional theory calculations,we investigate the electronic transport properties of 15,16-dinitrile 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.