Electroluminescence from Single-Wall Carbon Nanotube Network Transistors

Adam, Elyse; Aguirre, Carla; Marty, Laëtitia; St-Antoine, Benoit C.; Meunier, François; Desjardins, P.; Ménard, David; Martel, Richard

doi:10.1021/nl8011825

Cited by 78 publications

(108 citation statements)

References 27 publications

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“…On the other hand, electroluminescence (EL) remains less well developed, with experimental challenges including more difficult sample preparation, and the need to combine optical and electronic setups. In contrast to PL, EL reveals a spectrally broad emission with low quantum yield [5][6][7][8][9][10].…”

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confidence: 88%

Two modes of electroluminescence from single‐walled carbon nanotubes

Jacques¹,

Austing

Finnie

2009

Physica Rapid Research Ltrs

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The electroluminescence from single‐walled carbon nanotube field effect transistors is spectrally resolved, and shows two distinct modes of light emission. The vast majority of nanotubes have spectrally broad emission consistent with the spectrum of blackbody radiation. Much more rarely, superposed on the broad emission is a single narrow (<50 meV) peak which is consistent with expectation for electron–hole recombination. The narrow emission is strong even at lower biases and in general has greater peak intensity than the broadband emission. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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confidence: 88%

Two modes of electroluminescence from single‐walled carbon nanotubes

Jacques¹,

Austing

Finnie

2009

Physica Rapid Research Ltrs

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“…Improvement in emission power per unit area has been attempted by utilizing large arrays of electrolyte gated aligned CNTs ) compared to individual CNT FETs. 225 Increasing the electroluminescence intensity was also attempted in random CNT TFTs; 226 however, red-shifting and spectral broadening was observed due to exciton transfer from large band gap CNTs (narrow diameter) to small band gap…”

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confidence: 99%

Carbon nanomaterials for electronics, optoelectronics, photovoltaics, and sensing

et al. 2013

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In the last three decades, zero-dimensional, one-dimensional, and two-dimensional carbon nanomaterials (i.e., fullerenes, carbon nanotubes, and graphene, respectively) have attracted significant attention from the scientific community due to their unique electronic, optical, thermal, mechanical, and chemical properties. While early work showed that these properties could enable high performance in selected applications, issues surrounding structural inhomogeneity and imprecise assembly have impeded robust and reliable implementation of carbon nanomaterials in widespread technologies. However, with recent advances in synthesis, sorting, and assembly techniques, carbon nanomaterials are experiencing renewed interest as the 2 basis of numerous scalable technologies. Here, we present an extensive review of carbon nanomaterials in electronic, optoelectronic, photovoltaic, and sensing devices with a particular focus on the latest examples based on the highest purity samples. Specific attention is devoted to each class of carbon nanomaterial, thereby allowing comparative analysis of the suitability of fullerenes, carbon nanotubes, and graphene for each application area. In this manner, this article will provide guidance to future application developers and also articulate the remaining research challenges confronting this field.Deep Jariwala is currently working as a graduate student under supervision of Prof. Mark

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“…[4]. Luminescence properties of carbon nanotubes attracted a special interest, and became a leading component in various configurations, not only as individualised entities in micelle surfactant, but also when suspended over trenches [8] or deposited onto chip surface [9]. Numerous works prove that the nanotube environment plays a primordial role in their emission behaviour [10][11][12], and several nonradiative de-excitation mechanisms exist, either by Auger recombination [13] or energy transfers to metallic SWNT (m-SWNT) [14] or excitons [15].…”

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confidence: 99%

Optical gain in carbon nanotubes

Gaufrès

Izard

Roux

et al. 2010

Applied Physics Letters

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Semiconducting single wall carbon nanotubes (s-SWNT) have proved to be promising material for nanophotonics and optoelectronics. Due to the possibility of tuning their direct band gap and controlling excitonic recombinations in the near-infrared wavelength range, s-SWNT can be used as efficient light emitters. We report the first experimental demonstration of room temperature intrinsic optical gain as high as 190 cm −1 at a wavelength of 1.3 µm in a thin film doped with (8,7) s-SWNT. These results constitute a significant milestone towards the development of laser sources based on carbon nanotubes for future high performance integrated circuits. [4]. Luminescence properties of carbon nanotubes attracted a special interest, and became a leading component in various configurations, not only as individualised entities in micelle surfactant, but also when suspended over trenches [8] or deposited onto chip surface [9]. Numerous works prove that the nanotube environment plays a primordial role in their emission behaviour [10][11][12], and several nonradiative de-excitation mechanisms exist, either by Auger recombination [13] or energy transfers to metallic SWNT (m-SWNT) [14] or excitons [15]. These mechanisms lead to a strong competition between bright and dark excitons and a limited photoluminescence lifetime [16]. Up to now, a main challenge was to obtain light amplification in carbon nanotubes. Here, we experimentally demonstrate optical gain in carbon nanotubes at a wavelength of 1.3 µm at room temperature. Semiconducting SWNT (s-SWNT) extracted by the previously described polyfluorene (PFO) method [17] were drop cast on glass substrate. Pure s-SWNT thin films will be hereafter designated as sample A, while a control sample made with a blend of s-and m-SWNT will be named sample B. Both layers have a homogeneous carbon nanotube density and a thickness of 1 µm. The coating was made to obtain regular and vertical edge facets [18]. Absorbance spectrum of such initial s-SWNT/PFO solution and photoluminescence spectrum of drop-casted s-SWNT/PFO solution on glass substrate are reported in ref 12. Optical properties characterized by the E 22 and E 11 optical transitions are related to strongly bound excitons [19]. Photons absorbed on the E 22 optical transition create excitons at the carbon nanotube surface and light emission is produced due to the exciton recombination through the E 11 optical transi- tion. The polymer host matrix (PFO) presents absorption and photoluminescence peaks in the UV-visible spectrum range, and is optically inactive (no absorption and no emission) on the near infrared carbon nanotube absorption and emission range, without any evidence of energy transfer towards carbon nanotubes [20].Optical gain measurements were first performed on sample A using the variable strip length (VSL) method [21]. The sample was optically excited by an Optical Parametric Oscillator laser emitting at a wavelength of 740 nm, pumped by a two nanosecond pulsed Nd:YAG laser at 355 nm. Amplified Spontaneous Emission (ASE) ...

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Electroluminescence from Single-Wall Carbon Nanotube Network Transistors

Cited by 78 publications

References 27 publications

Two modes of electroluminescence from single‐walled carbon nanotubes

Two modes of electroluminescence from single‐walled carbon nanotubes

Carbon nanomaterials for electronics, optoelectronics, photovoltaics, and sensing

Optical gain in carbon nanotubes

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