10 research outputs found
Compensation and rewards for environmental services in the developing world framing pan-tropical analysis and comparison
Customizable in situ TEM devices fabricated in freestanding membranes by focused ion beam milling
Modelâbased exact technique to identify type and degree of eccentricity faults in induction motors
Automation of multi-fault diagnosing of centrifugal pumps using multi-class support vector machine with vibration and motor current signals in frequency domain
In Situ TEM Creation and Electrical Characterization of Nanowire Devices
We demonstrate the observation and measurement of simple nanoscale devices over their complete lifecycle from creation to failure within a transmission electron microscope. Devices were formed by growing Si nanowires, using the vapor-liquid-solid method, to form bridges between Si cantilevers. We characterize the formation of the the nature of the connection depends on the flow of heat and V contact between the nanowire and the cantilever, showing that electrical current during and after the moment of contact. We measure the electrical properties and high current failure characteristics of the resulting bridge devices in situ and relate these to the structure. We also describe processes to modify the contact and the nanowire surface after device formation. The technique we describe allows the direct analysis of the processes taking place during device formation and use, correlating specific nanoscale structural and electrical parameters on an individual device basis