Scientists discover a better metal contact that improves two-dimensional transistor performance




Two-dimensional (2D) materials such as molybdenum-disulfide (MoS2) are attracting much attention for future electronic and photonic applications ranging from high-performance computing to flexible and pervasive sensors and optoelectronics. But in order for their promise to be realized, scientists need to understand how the performance of devices made with 2D materials is affected by different kinds of metal electrical contacts.

Scientists discover a better metal contact that improves two-dimensional transistor performance




Researchers in PML’s Semiconductor & Dimensional Metrology Division, in collaboration with researchers from George Mason University, compared silver and titanium contacts on MoS2 transistors to determine the influence of the metal–MoS2 interface.

A sophisticated suite of measurements (Raman spectroscopy, scanning electron microscopy and atomic force microscopy) was used to characterize the surface morphology and the interface between MoS2 and the metals, the properties of which affect the device behavior.

 

For more detail: Scientists discover a better metal contact that improves two-dimensional transistor performance




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