Engineered carbon nanotubes and graphene for nano-electronics and nanomechanics

Abstract

We are exploring nanoelectronic engineering areas based on low dimensional materials, including carbon nanotubes and graphene. Our primary research focus is investigating carbon nanotube and graphene architectures for field emission applications, energy harvesting and sensing. In a second effort, we are developing a high-throughput desktop nanolithography process. Lastly, we are studying nanomechanical actuators and associated nanoscale measurement techniques for re-configurable arrayed nanostructures with applications in antennas, remote detectors, and biomedical nanorobots. The devices we fabricate, assemble, manipulate, and characterize potentially have a wide range of applications including those that emerge as sensors, detectors, system-on-a-chip, system-in-a-package, programmable logic controls, energy storage systems, and all-electronic systems.

The effect of width on graphene nanoribbon density of state under uniaxial strain

“…Over the past few years, application of strain to the conventional materials field effect transistor (FET) such as Si, Ge and SiGe has attracted a widespread interest in the fields and has been proven to be an effective way to enhance the device performance [1,2].Recently, applied strain to non-Silicon material such as carbon nanotubes (CNT) and graphene has gained a great concern among researchers [3][4][5][6]. The projection of strain on CNT has been shown to give significant effect on CNT bandgap depending on their chirality [3,4]. Since CNT and graphene originate from the same graphite source; the effect of strain on graphene is of great relevance.…”

An analytical approach to evaluate the performance of graphene and carbon nanotubes for NH3 gas sensor applications

“…Nanotechnology is the study and application of materials with at least one dimension of the order of 1 to 100 nanometers, which is comparable to the de Broglie wavelength of carriers. Novel applications [7–9] are possible by exploiting the quantum waves in operation of these low-dimensional devices. New materials are being discovered in building novel sensors that can operate on the nanometer scale.…”

Graphene and Carbon Nanotubes

“…Nanotechnology is the study and application of materials with at least one dimension of the order of 1 to 100 nanometers, which is comparable to the de Broglie wavelength of carriers. Novel applications [7][8][9] are possible by exploiting the quantum waves in operation of these low-dimensional devices. New materials are being discovered in building novel sensors that can operate on the nanometer scale.…”