Sensors and Electron Devices Directorate Research Areas

Nanoelectronic Devices and Sensors

Advisor: Wickenden, Alma E.   (alma.wickenden@us.army.mil   301-394-0094)
Keywords: Nanoscience; Nanotechnology; Nanoelectronics; Nanowire; Carbon nanotube; Nanosensors; Networked Microsystems; Bio-inspired; Neural architecture

Fundamental research and development is being conducted in the area of nanoscale amperometric sensors with integrated signal processing and communications I/O. Our goal is to integrate into autonomous networked microscale systems as part of the ARL’s growing nano/bio-electronics strategic research thrust. These nanoscale devices utilize carbon nanotubes, organic or inorganic nanowires, and/or organic molecules as active device components. Research is solicited in the development, fabrication, characterization, and modeling of novel nanoscale amperometric sensor devices and high frequency (GHz - THz) communications devices. Key research areas include mechanistic investigations to enhance the selectivity and practical sensitivity of the sensor devices and the signal processing and networking capability of the ultrahigh frequency nanoelectronic communications devices. For example, fundamental transport phenomena such as noise at quantum length scales, phonon transport across disparate interfaces, and ensemble effects in nanoelectronic devices require investigation. ARL has extensive processing/fabrication facilities including direct-write electron beam lithography, a focused ion beam (FIB) etching/deposition tool, a thermal CVD carbon nanotube furnace, an SEM-mounted nanomanipulator/nanoprobe instrument, and extensive state-of-the-art Class 10/100 cleanroom facilities. ARL’s extensive microanalytical and electrical characterization facilities include scanning electron microscopy, transmission electron microscopy, secondary ion mass spectrometry, atomic force microscopy, and a cryogenic probestation with probe capability from 4.5-450 K in temperature, dc-40 GHz in frequency, with fiber optic and gas capillary feedthroughs for specialized nanoelectronic device analysis. Candidates should have a background in physics, electrical engineering, physical chemistry, or materials science. Experience in nanofabrication, electronic transport characterization, and quantum-effect modeling is considered extremely beneficial.