Temperature and light illumination dependence of the Current-Voltage Characteristics of Self-Assembled Monolayer Molecular Junctions
This paper systematically studied the charge transport properties of a series of self-assembled monolayer molecular junctions with different alkanethiol and conjugated molecules,respectively. The device was fabricated using a soft stamp-printing method. Current-voltage characteristics were measured at varied temperature (300 K down to 91 K) under different light illumination conditions. To understand the device charge transport properties,the Simmons model was used to analyze the experimental current-voltage data. The simulation results showed that the barrier height is strongly dependent on the temperature,molecular length and conjugation structure. The charge injection barrier decreases with the increase of substrate temperature and/or molecular length. The conjugation structure can induce a obviously change in the charge transport of the crossbar junctions. Our work may offer some useful information for the development of molecular electronic based memory devices.
self-assembled monolayer molecular junction charge transport barrier height
WANG Dan JIAN Xiao-hui LI Jian-chang BA De-chun
Vacuum and fluid engineering research center,Northeastern University,Shenyang 110004,China
国际会议
沈阳
英文
149-154
2011-05-22（万方平台首次上网日期，不代表论文的发表时间）