1. Fabrication of devices 2. Lifetime histograms with probe DNA NH2-5’-GGAAAAAAGG-3’ (Device 1) 3. Measurements with probe DNA NH2-5’-GTGAGTTGTT-3’ (Device 2) 4. Lifetime histograms with probe DNA NH2-5’-GTGAGTTGTT-3’ (Device 2) 5. Control experiment with a non-functionalized device 6. Scanning gate microscopy (IV) 7. Control experiments with probe DNA NH2-5’-GGAAAAAAGG-3’ with complementary an...

A sensing device is modeled and discussed in this paper. The modeling is done by using carbon nanotubes. This carbon nanotube based sensing device makes it possible produce huge amount of nano chips as a disposable cartridge for diagnostic purposes. Modeling of nano-electrode, characterization and electrochemical detection of DNA hybridization is discussed here. The results shows that the impor...

Theory of a novel carbon nanotube opto–electronic switch is presented. Current control is realized at the molecular level by applying field of an atomic charge or atomic dipole across the nanotube channel, which can work as a local gate. In the case of a unit (1 e) point charge, close to the surface, a scattering potential strength is ∼ 2 eV if neglecting the screening. Thus, the screened poten...

C arbon nanomaterials such as carbon nanotubes 1 and graphene 2 are low-dimensional materials that can have defect-free lattices over microscopic length scales, which is a feature that only a few other nanomaterials can offer. Despite the excitement that these materials have generated in the condensed-matter physics community due to their potential as playgrounds for quantum transport study, th...

Photoactive materials that are triggered by the irradiation of light to generate an electrical response provide an ecofriendly platform to afford efficient power sources and switches. A chemical assembly of well-known elements with aligned carbon nanotube bundles is reported here, which was employed to form an efficient photo-induced charge transfer device. The primary elements of this device a...

In this study we investigate the effect of atoms such as B, N, Ge and Sn on the optical and the electrical properties of capped (5, 0) zigzag carbon nanotube, using DFT calculation method. These elements were attached to the one end of the carbon nanotube. We considered four different structure designs as possible candidates for a p-n junction device. The electrical properties of these structur...

This work describes an on-chip integrated micro-actuator device for slack-free carbon nanotube (CNT) resonators, improving frequency tunability and Q factor and to study non-linear mode interaction. The device fabricated on SOI wafer with low thermal budget (<600 K) encompasses a restricted symmetrical out-of-plane vibration and a stiff in-plane electro-thermal actuator with a displacement of ~...

A previously proposed two-terminal carbon-nanotube-based device with closed-loop feedback is demonstrated through in situ scanning electron microscopy (SEM) experiments. The pull-in/pull-out tests were carried out using a multi-walled carbon nanotube (MWCNT) welded to a conductive probe attached to a nanomanipulator. The MWCNTs were cantilevered over a gold electrode and electrostatically actua...

With the highly competitive development of communication technologies, modern information manufactures place high importance on the ability to control the transmitted signal using easy miniaturization materials. A controlled and miniaturized optical information device is, therefore, vital for researchers in information and communication fields. Here we propose a controlled signal transport in a...