The electron transport through diaminoacenes sandwiched between two Au electrodes is simulated by using a first-principles analysis.The nonlinear current-voltage characteristic is observed.Effects of the ring number a...The electron transport through diaminoacenes sandwiched between two Au electrodes is simulated by using a first-principles analysis.The nonlinear current-voltage characteristic is observed.Effects of the ring number and positions of amine groups on equilibrium transport properties are found.For 1,4 series,the greater the number of the rings,the stronger the transmission spectrum near the Fermi energy.For 2,6 series,the larger the number of the rings,the weaker the transmission spectrum near the Fermi energy.This is helpful for understanding the recently reported results on conductance measurements using amines.展开更多
基金Supported by the Shanghai Education Committee under Grant No 060Z018the Natural Science Foundation of Shaanxi Province under Grant No No.2009JQ1004the Young Scientists Fund of the National Natural Science Foundation of China under Grant No 10904123.
文摘The electron transport through diaminoacenes sandwiched between two Au electrodes is simulated by using a first-principles analysis.The nonlinear current-voltage characteristic is observed.Effects of the ring number and positions of amine groups on equilibrium transport properties are found.For 1,4 series,the greater the number of the rings,the stronger the transmission spectrum near the Fermi energy.For 2,6 series,the larger the number of the rings,the weaker the transmission spectrum near the Fermi energy.This is helpful for understanding the recently reported results on conductance measurements using amines.
