Self-Assembly Fabrication of High Performance Carbon Nanotubes Based FETs

Valentín, Emmanuel; Auvray, Stéphane; Filoramo, Arianna; Ribayrol, Aline; Goffman, M. F.; Capes, Laurence; Bourgoin, Jean‐Philippe; Patillon, J. N.

doi:10.1557/proc-772-m4.7

Cited by 10 publications

(6 citation statements)

References 17 publications

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“…The SWNTs are then connected in a transistor geometry (Cr/Au source and drain electrodes, spaced by 100 to 500 nm) using the heavily doped and oxidized silicon substrate (200 nm of SiO 2 ) as back-gate. Elaborating on pioneering works using an electrostatic interaction between the SWNTs and the SAM, − we recently showed that a high yield of highly selective deposition of individual SWNTs in predefined areas of the substrate, and thus a high yield of CNTFETs fabrication, was possible using simultaneously a SWNT organic solvent dispersion and deposition on an optimized SAM. − The SWNT raw material used in the present work was produced by a laser ablation technique at Dresden University and purified by an optimized soft acidic treatment . The purified SWNTs were dispersed by moderate sonication in N -methyl pyrrolidone (NMP), which proves the solvent of choice for a high yield of selective deposition onto the APTS patterns.…”

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Chemical Optimization of Self-Assembled Carbon Nanotube Transistors

et al. 2005

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We present the improvement of carbon nanotube field effects transistors (CNTFETs) performances by chemical tuning of the nanotube/substrate and nanotube/electrode interfaces. Our work is based on a method of selective placement of individual single walled carbon nanotubes (SWNTs) by patterned aminosilane monolayer and its use for the fabrication of self-assembled nanotube transistors. This method brings a relevant solution to the problem of systematic connection of self-organized nanotubes. The aminosilane monolayer reactivity can be used to improve carrier injection and doping level of the SWNT. We show that the Schottky barrier height at the nanotube/metal interface can be diminished in a continuous fashion down to an almost ohmic contact through these chemical treatments. Moreover, sensitivity to 20 ppb of triethylamine is demonstrated for self-assembled CNTFETs, thus opening new prospects for gas sensors taking advantages of the chemical functionality of the aminosilane used for assembling the CNTFETs.

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Chemical Optimization of Self-Assembled Carbon Nanotube Transistors

et al. 2005

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“…This approach has the potential to generate functional multicomponent devices by self-assembly of the atoms and molecules without wasting them or the need for eliminating parts of the system [17]. The assembly of the elementary building blocks is usually manipulated by either physical aggregation, chemical reaction, or use of templates [3,24] where controlled chemical reactions manipulate the building blocks to self-assemble and make nanostructures such as nanotubes, nanoribbons, and quantum dots [1,25,26]. This approach has the potential to assemble nanostructured materials where the top-down approach fails though one of its major challenges is to ensure predefined structures with precise shapes and sizes [3].…”

Section: Fabrication Of Nanostructured Materialsmentioning

confidence: 99%

Design and Synthesis of Nanostructured Materials for Sensor Applications

Noah

2020

Journal of Nanomaterials

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There has been an increasing demand for the development of sensor devices with improved characteristics such as sensitivity, low cost, faster response, reliability, rapider recovery, reduced size, in situ analysis, and simple operation. Nanostructured materials have shown great potential in improving these properties for chemical and biological sensors. There are different nanostructured materials which have been used in manufacturing nanosensors which include nanoscale wires (capability of high detection sensitivity), carbon nanotubes (very high surface area and high electron conductivity), thin films, metal and metal oxide nanoparticles, polymer, and biomaterials. This review provides different methods which have been used in the synthesis and fabrication of these nanostructured materials followed by an extensive review of the recent developments of metal, metal oxides, carbon nanotubes, and polymer nanostructured materials in sensor applications.

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“…Choi et al [90] patterned a PMMA mask with e-beam lithography, and a deposited amino-silane SAM and subsequent surfactant-covered CNTs were patterned by lift-off. Valentin et al [91] present CNT-based field-effect transistors using similar self-assembly methods followed by metal lithography.…”

Section: A Self-assembled Monolayers (Sams) For Antistiction Wear Rmentioning

confidence: 99%

Self-assembly for microscale and nanoscale packaging: steps toward self-packaging

Morris

Stauth

Parviz

2005

IEEE Trans. Adv. Packag.

109

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The packaging of microelectromechanical systems (MEMS) and nanoscale devices constitutes an important area of research and development that is vital to the commercialization of such devices. Packaging needs of these devices include interfaces to nonelectronic domains; integration of structures, devices, and subsystems made with incompatible fabrication processes into a single platform; and the ability to handle a very large numbers of parts. Although serial, robotic assembly methods such as pick-and-place have allowed significant manufacturing feats, self-assembly is an attractive option to tackle packaging issues as the size of individual parts decreases below 300 m. In this paper, we review advances made in the usage of self-assembly for packaging and potential directions that growth in this area can assume. In the micrometer scale, we review the use of capillary forces, gravity, shape recognition, and electric fields to guide twoand three-dimensional self-assembly processes. In the nanoscale, we survey the usage of self-assembled molecular monolayers to solve current packaging issues, DNA hybridization for guiding self-assembly processes of nanoscale devices, and methods used to package nanowires or nanotubes into electronic circuits. We conclude with an example of a nanoscale biosensor which directly incorporates the concept of its package into its fabrication process. Even though the idea of a fully self-packaging system has not been demonstrated to date, the body of work reviewed and discussed here presents a solid foundation for the pursuit of this goal.

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Self-Assembly Fabrication of High Performance Carbon Nanotubes Based FETs

Cited by 10 publications

References 17 publications

Chemical Optimization of Self-Assembled Carbon Nanotube Transistors

Chemical Optimization of Self-Assembled Carbon Nanotube Transistors

Design and Synthesis of Nanostructured Materials for Sensor Applications

Self-assembly for microscale and nanoscale packaging: steps toward self-packaging

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