Incorporation of Single-Walled Carbon Nanotubes into Functional Sensor Applications

Abstract

Due to their extreme sensitivity to surface adsorption events, there has been great interest in incorporating single walled carbon nanotubes (SWNTs) into sensing devices. However, a practical sensor needs to have selective response in addition to sensitivity. Therefore, recent efforts have focused on efforts to increase selectivity in SWNT sensors. This manuscript article presents recent progress toward incorporation of SWNTs into enhanced sensor and electronic applications. SWNTs are a nanometer-scale material with properties that have made them the focus of research for a variety of electronic applications. Particularly, SWNT gas sensors have received significant interest of late. Electrical transducers based on monitoring the change in conductance or threshold voltage of SWNT devices upon exposure to an analyte have the advantage of being small, simple and low power devices.

Carbon nanotubes and organic solar cells

“…LFD avoids the formation of CNT bundles and allows for the construction of layer by layer (LBL) architectures with arbitrary density and designed layers relative orientation on a number of substrates. 200,201 Langmuir-Blodgett (LB), in Fig. 13d, is one of the most elegant methods to deposit CNT monolayers or multilayered organic thin films.…”

Preparation and modification of carbon nanotubes: Review of recent advances and applications in catalysis and sensing

“…SWNTs show potential for use in such sensors because of their high sensitivity, small size, high surface area, and high aspect ratio. This enables carbon nanotube sensors to detect smaller concentrations of gas molecules than traditional sensors [51,[157][158][159][160]. Charge transfer between the gas molecules and semiconducting carbon nanotubes changes the electrical conductance of carbon nanotubes and thus forms the mechanism of chemiresistive sensing.…”

Sulfonate-terminated carbosilane dendron-coated nanotubes: a greener point of view in protein sample preparation

“…They possess an extraordinary combination of mechanical and optical properties and electrical and thermal conductivities, as well as a large surface area. These characteristics have made them suitable for their use in a wide range of applications [10][11][12]. Many of these applications are based on interactions between proteins and SWCNTs [13][14][15][16][17].…”