Bioinspired Detection of Light Using a Porphyrin-Sensitized Single-Wall Nanotube Field Effect Transistor

Hecht, David S.; Ramirez, Robert J. A.; Briman, Mikhail; Artukovic, Erika; Chichak, Kelly S.; Stoddart, J. Fraser; Grüner, G.

doi:10.1021/nl061231s

Cited by 213 publications

(193 citation statements)

References 32 publications

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“…This supramolecular assembly has been explored recently as light-harvesting donor/acceptor complexes [1][2][3][4][5][6][7][8][9][10] , as well as for the electrocatalysis of the oxygen reduction reaction [11][12][13][14] . Some schemes proposed for the such a functionalization include the CNT encapsulation in micelles of surfactant 15 or in polymers.…”

Section: Introductionmentioning

confidence: 99%

Single- and double-wall carbon nanotubes fully covered with tetraphenylporphyrins: Stability and optoelectronic properties from ab initio calculations

Orellana

2015

Chemical Physics Letters

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The optoelectronic properties of single-and double-wall carbon nanotubes (CNTs) noncovalently functionalized with tetraphenylporphyrins (TPPs) are addressed by dispersion-corrected ab initio calculations. Five CNT species with different chiralities were considered. We find that the most stable configurations are those where the CNTs are fully covered by TPPs, exhibiting binding energy of about 2 eV/TPP. The semiconducting CNT-TPP compounds show optical response characterized by a strong absorption associated to the TPP bands, with increasing intensity with the TPP concentration. In addition, molecular dynamic simulations show that the compounds would be stable at temperatures as high as 100• C.

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Section: Introductionmentioning

confidence: 99%

Single- and double-wall carbon nanotubes fully covered with tetraphenylporphyrins: Stability and optoelectronic properties from ab initio calculations

Orellana

2015

Chemical Physics Letters

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“…Thin (submonolayer) CNT films have been demonstrated as a material for low cost flexible transparent field effect transistors (FETs), [1][2][3][4][5][6][7] as well as for gas, pH, chemical, DNA, and optical/IR sensors. [8][9][10][11] The best CNTN-FETs to date have reached high ON/OFF ratios around 10 5 while at the same time achieving field effect mobilities on the order of 10 cm . The reasons for the large gap between film mobilities and individual tube mobilities is still not fully understood, and there could potentially be significant room for improvement in device performance by controlling the density, tube-tube junction characteristics, and semiconducting fraction of tubes.…”

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confidence: 99%

Charge Transport in Interpenetrating Networks of Semiconducting and Metallic Carbon Nanotubes

et al. 2009

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Carbon nanotube network field effect transistors (CNTN-FETs) are promising candidates for low cost macroelectronics. We investigate the microscopic transport in these devices using electric force microscopy and simulations. We find that in many CNTN-FETs the voltage drops abruptly at a point in the channel where the current is constricted to just one tube. We also model the effect of varying the semiconducting/ metallic tube ratio. The effect of Schottky barriers on both conductance within semiconducting tubes and conductance between semiconducting and metallic tubes results in three possible types of CNTN-FETs with fundamentally different gating mechanisms. We describe this with an electronic phase diagram.

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“…However, the carrier concentration and the mobility changes cannot be separately characterized by conductance measurement, since conductivity is defined as σ=neμ. Transistor measurements of the transfer characteristics, however, can distinguish between these two mechanisms [55].…”

Section: Mechanism Of Electrical Detectionmentioning

confidence: 99%

One-dimensional Nanomaterials for Field Effect Transistor (FET) Type Biosensor Applications

Lee¹,

Lucero²,

Kim³

2012

Transactions on Electrical and Electronic Materials

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One-dimensional, nanomaterial field effect transistors (FET) are promising sensors for bio-molecule detection applications. In this paper, we review fabrication and characteristics of 1-D nanomaterial FET type biosensors. Materials such as single wall carbon nanotubes, Si nanowires, metal oxide nanowires and nanotubes, and conducting polymer nanowires have been widely investigated for biosensors, because of their high sensitivity to bio-substances, with some capable of detecting a single biomolecule. In particular, we focus on three important aspects of biosensors: alignment of nanomaterials for biosensors, surface modification of the nanostructures, and electrical detection mechanism of the 1-D nanomaterial sensors.

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Bioinspired Detection of Light Using a Porphyrin-Sensitized Single-Wall Nanotube Field Effect Transistor

Cited by 213 publications

References 32 publications

Single- and double-wall carbon nanotubes fully covered with tetraphenylporphyrins: Stability and optoelectronic properties from ab initio calculations

Single- and double-wall carbon nanotubes fully covered with tetraphenylporphyrins: Stability and optoelectronic properties from ab initio calculations

Charge Transport in Interpenetrating Networks of Semiconducting and Metallic Carbon Nanotubes

One-dimensional Nanomaterials for Field Effect Transistor (FET) Type Biosensor Applications

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