Controlled growth of single-walled carbon nanotubes on patterned substrates

Zhou, Xiaozhu; Boey, Freddy Yin Chiang; Zhang, Hua

doi:10.1039/c1cs15045f

Cited by 35 publications

(27 citation statements)

References 57 publications

(70 reference statements)

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“…136,281 On the other hand, in situ growth approach produces aligned CNTs during growth using controlled CVD processes, including gas flow directed growth, 282–290 external field directed growth, 232,291–292 , and surface-directed growth. 25,293–297 These in situ aligned growth methods have the advantage of avoiding defects induced during post-assembly, and can be combined with the standard fabrication of silicon-based devices.…”

Section: Nanostructure Building Blocks and Nanotransistorsmentioning

confidence: 99%

Nano-Bioelectronics

2015

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Nano-bioelectronics represents a rapidly expanding interdisciplinary field that combines nanomaterials with biology and electronics, and in so doing, offers the potentials to overcome existing challenges in bioelectronics. In particular, shrinking electronic transducer dimensions to the nanoscale and making their properties appear more biological can yield significant improvements in the sensitivity and biocompatibility, and thereby open up opportunities in fundamental biology and healthcare. This review emphasizes recent advances in nano-bioelectronics enabled with semiconductor nanostructures, including silicon nanowires (SiNWs), carbon nanotubes (CNTs), and graphene. First, the synthesis and electrical properties of these nanomaterials are discussed in the context of bioelectronics. Second, affinity-based nano-bioelectronic sensors for highly sensitive analysis of biomolecules are reviewed. In these studies, semiconductor nanostructures as transistor-based biosensors are discussed from fundamental device behavior through sensing applications and future challenges. Third, the complex interface between nanoelectronics and living biological systems, from single cells to live animals are reviewed. This discussion focuses on representative advances in electrophysiology enabled using semiconductor nanostructures and their nanoelectronic devices for cellular measurements through emerging work where arrays of nanoelectronic devices are incorporated within three-dimensional cell networks that define synthetic and natural tissues. Last, some challenges and exciting future opportunities are discussed.

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Section: Nanostructure Building Blocks and Nanotransistorsmentioning

confidence: 99%

Nano-Bioelectronics

2015

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“…13,22–28 The outstanding mechanical and unique physical properties of individual CNTs have motivated the development of macrostructures based on CNTs, such as CNT arrays, films and fibers. 29–31 Such composite materials can be handled more conveniently than individual CNT and are therefore the attractive candidates for microelectrode materials. 32,33 …”

mentioning

confidence: 99%

Carbon Nanotube Fiber Microelectrodes Show a Higher Resistance to Dopamine Fouling

et al. 2013

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We have compared the properties and resistance to DA fouling of a carbon nanotube fiber (CNTF) microelectrode to a traditional carbon fiber (CF) microelectrode. These two materials show comparable electrochemical activities for outer-sphere and inner-sphere redox reactions. Although the CNTF might have a higher intrinsic RC constant, thus limiting its high-frequency behavior, the CNTF show a significantly higher durability than the CF in terms of electrode stability. During constant oxidation of 100 μM DA, the signal measured by the CNTF microelectrode shows a 2-hour window over which no decrease in current is observed. Under the same conditions, the current obtained at the CF microelectrode decreases by almost 50 %. A model of the fouling process, assuming the formation of growing patches of insulator on the surface, has been compared to the data. This model is found to be in good agreement with our results, and indicates a growth rate of the patches in the 0.1 - 2 nm s−1 range.

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“…The second important characteristic is that the surface patterning of polymer coatings can be readily realized by many lithographic techniques, such as photolithography, contact printing, and scanning probe lithography. [65][66][67][68][69][70][71][72][73][74] With the advantage of site selectivity in the ELD process, one can fabricate highly integrated electronic devices on flexible and stretchable substrates with patterned, surface-grafted polymer templates.…”

Section: Discussionmentioning

confidence: 99%

Surface‐Grafted Polymer‐Assisted Electroless Deposition of Metals for Flexible and Stretchable Electronics

Liu

Zhou

et al. 2012

Chemistry An Asian Journal

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Surface-grafted polymers, that is, ultrathin layers of polymer coating covalently tethered to a surface, can serve as a particularly promising nanoplatform for electroless deposition (ELD) of metal thin films and patterned structures. Such polymers consist of a large number of well-defined binding sites for highly efficient and selective uptake of ELD catalysts. Moreover, the polymer chains provide flexible 3D network structures to trap the electrolessly deposited metal particles, leading to strong metal-substrate adhesion. In the past decade, surface-grafted polymers have been demonstrated as efficient nanoplatforms for fabricating durable and high-performance metal coatings by ELD on plastic substrates for applications in flexible and stretchable electronics. This focus review summarizes these recent advances, with a particular focus on applications in polymeric flexible and stretchable substrates. An outlook on the future challenges and opportunities in this field is given at the end of this paper.

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Controlled growth of single-walled carbon nanotubes on patterned substrates

Cited by 35 publications

References 57 publications

Nano-Bioelectronics

Nano-Bioelectronics

Carbon Nanotube Fiber Microelectrodes Show a Higher Resistance to Dopamine Fouling

Surface‐Grafted Polymer‐Assisted Electroless Deposition of Metals for Flexible and Stretchable Electronics

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