Arizona State University researchers have devised a method for mechanically controlling the geometry of a single molecule, situated in a junction between a pair of gold electrodes that form a simple circuit. These manipulations produced over ten times greater conductivity. This development may eventually be introduced into a broad range of microelectronics, suitable for applications, including biological and chemical sensing electronic and mechanical devices.
Diminishing conductivity through a molecule is commonly observed when the distance between the electrodes attached to its surface is increased and the molecule becomes elongated. But, according to researchers, if you stretch the molecule enough, something unexpected happens: the conductance goes up – by a huge amount, producing at least 10 times greater conductivity.
Researchers believe that single molecules are compelling candidates for a new types of electronic devices because they can exhibit very different properties from those observed in conventional semiconductors. Microelectromechanical systems or MEMS are just one domain where the versatile properties of single molecules are likely to make their mark.
Also: An FPGA-based switch test can be performed on MEMS switches.
