Effects of the Bridging Bond on Electronic Transport in a D-B-A Device
LI Ming-Jun1, LONG Meng-Qiu1,2**, XU Hui1**
1School of Physics and Electronics, Central South University, Changsha 410083 2Institute of Super Microstructure and Ultrafast Process, Central South University, Changsha 410083
Abstract：By using density functional theory combined with a nonequilibrium Green's functions approach, the electronic transport properties of different bridges connecting benzene-based heterojunction molecular devices are investigated. We focus on the effects of the bridging bond polarity and its bond length. Our results show that the polar bond plays a significant role in determining the overall conductance of the molecular devices. The effects of a current plateau and the negative differential resistance can be observed. These simulation results suggest that the proposed models may be helpful for designing practical molecular devices.
. [J]. 中国物理快报, 2013, 30(8): 87201-087201.
LI Ming-Jun, LONG Meng-Qiu, XU Hui. Effects of the Bridging Bond on Electronic Transport in a D-B-A Device. Chin. Phys. Lett., 2013, 30(8): 87201-087201.
2013, Vol. 30 
