Matthieu Paillet
Université de Montréal
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Publication
Featured researches published by Matthieu Paillet.
Nano Letters | 2009
Carla M. Aguirre; C. Ternon; Matthieu Paillet; P. Desjardins; Richard Martel
We have investigated the charge injection efficiency of carbon nanotube electrodes for organic semiconducting layers and compared their performance to that of traditional noble metal electrodes. Our results reveal that charge injection from a single carbon nanotube electrode is more than an order of magnitude more efficient than charge injection from metal electrodes. Moreover, organic thin film transistors that use arrays of carbon nanotube electrodes display considerable effective mobilities (0.14 cm(2)/(V.s)) and nearly ideal linear output characteristics. These results indicate that carbon nanotubes should be considered a viable alternative to metal electrodes for next-generation organic field-effect transistors.
ACS Nano | 2011
Delphine Bouilly; Janie Cabana; François Meunier; Maxime Desjardins-Carrière; François Lapointe; Philippe Gagnon; Francis L. Larouche; Elyse Adam; Matthieu Paillet; Richard Martel
Double-walled carbon nanotubes (DWNTs) present an original coaxial geometry in which the inner wall is naturally protected from the environment by the outer wall. Covalent functionalization is introduced here as an effective approach to investigate DWNT devices. Performed using an aryldiazonium salt, the functionalization is reversible upon thermal annealing and occurs strictly at the surface of the outer wall, leaving the inner wall essentially unaltered by the chemical bonding. Measurements on functionalized DWNT transistors show that the electrical current is carried by the inner wall and provide unambiguous identification of the metallic or semiconducting character of both walls. New insights about current saturation at high bias in DWNTs are also presented as an illustration of new experiments unlocked by the method. The wall-selectivity of the functionalization not only enables selective optical and electrical probing of the DWNTs, but it also paves the way to designing novel electronic devices in which the inner wall is used for electrical transport while the outer wall chemically interacts with the environment.
Review of Scientific Instruments | 2010
Matthieu Paillet; François Meunier; Marc Verhaegen; Sébastien Blais-Ouellette; Richard Martel
We designed a near infrared tunable resonance Raman spectroscopy system based on a tandem of thick volume Bragg gratings (VBGs). VBGs are here the constituents of two light filtering units: a tunable laser line filter (LLF) and a tunable notch filter (NF). When adapted in a micro-Raman setup with a single stage monochromator (1800 gr/mm grating), the tandem of LLF and NF allowed measurements of Raman signals down to +/-20 cm(-1). The good performance and fast tunability of the VBG Raman system was demonstrated on a sulfur powder and on a bulk single-walled carbon nanotube sample through a series of 22 Stokes and anti-Stokes spectra recorded at excitation wavelengths between 800 and 990 nm. The main drawbacks of the setup are the limited spectral range to the near infrared and the small angular acceptance of the filters (approximately 1 mrad), which causes mainly attenuation problems with the NF. The impact of the main limitations is discussed and solutions are provided.
Langmuir | 2010
Janie Cabana; Matthieu Paillet; Richard Martel
Single-wall carbon nanotubes (SWNTs) are promising building blocks for the fabrication of nanoelectronic devices. However, achieving control over their assembly on substrates has been challenging and is still a bottleneck to their utilization. Herein, we present a general method for directing the chemical assembly of SWNTs on substrates through electrostatic interactions. By covalently functionalizing both the nanotube sidewalls and the SiO(2) substrate with charged groups, dense networks of SWNTs were produced. The method is selective and highly efficient to process network field-effect transistors.
XXII INTERNATIONAL CONFERENCE ON RAMAN SPECTROSCOPY | 2010
Marc Verhaegen; Matthieu Paillet; François Meunier; Sebastien Blais-Ouellette; Richard Martel
We designed a near infrared tunable resonance Raman spectroscopy system based on a tandem of thick volume Bragg gratings (VBGs). VBGs are here the constituents of two light filtering units: a tunable laser line filter (LLF) and a tunable notch filter (NF). When adapted in a micro‐Raman setup with a single stage monochromator (1800 gr/mm grating), the tandem of LLF and NF allowed measurements of Raman signals down to 20 cm−1. The good performance and fast tunability of the VGB Raman system was demonstrated on a sulfur powder and on a bulk single‐walled carbon nanotube sample through a series of 22 Stokes and anti‐Stokes spectra recorded at excitation wavelengths between 800 nm and 990 nm. The main drawbacks of the setup are the limited spectral range to the near infrared and the small angular acceptance of the filters, which causes mainly attenuation problems with the NF. The impact of this limitation is discussed and solutions are provided. We will also discuss the potential interests and applications of ...
Advanced Materials | 2009
Carla M. Aguirre; Pierre L. Levesque; Matthieu Paillet; François Lapointe; Benoit C. St-Antoine; P. Desjardins; Richard Martel
Physica Status Solidi B-basic Solid State Physics | 2007
Thierry Michel; Matthieu Paillet; J. C. Meyer; V. N. Popov; Luc Henrard; P. Poncharal; Ahmed Azmi Zahab; Jean-Louis Sauvajol
Meeting Abstracts | 2012
Delphine Bouilly; Janie Cabana; François Meunier; Maxime Desjardins-Carrière; François Lapointe; Philippe Gagnon; Francis L. Larouche; Elyse Adam; Matthieu Paillet; Richard Martel
Meeting Abstracts | 2011
Elyse Adam; Benoit C. St-Antoine; Pierre L. Levesque; Matthieu Paillet; David Ménard; Richard Martel
Meeting Abstracts | 2011
Delphine Bouilly; Janie Cabana; François Meunier; Maxime Desjardins-Carrière; François Lapointe; Philippe Gagnon; Francis L. Larouche; Elyse Adam; Matthieu Paillet; Richard Martel