Records |
Author |
Dube, I.; Jiménez, D.; Fedorov, G.; Boyd, A.; Gayduchenko, I.; Paranjape, M.; Barbara, P. |
Title |
Understanding the electrical response and sensing mechanism of carbon-nanotube-based gas sensors |
Type ![sorted by Type field, ascending order (up)](img/sort_asc.gif) |
Journal Article |
Year |
2015 |
Publication |
Carbon |
Abbreviated Journal |
Carbon |
Volume |
87 |
Issue |
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Pages |
330-337 |
Keywords |
carbon nanotubes, CNT detectors, field effect transistors, FET |
Abstract |
Gas sensors based on carbon nanotube field effect transistors (CNFETs) have outstanding sensitivity compared to existing technologies. However, the lack of understanding of the sensing mechanism has greatly hindered progress on calibration standards and customization of these nano-sensors. Calibration requires identifying fundamental transistor parameters and establishing how they vary in the presence of a gas. This work focuses on modeling the electrical response of CNTFETs in the presence of oxidizing (NO2) and reducing (NH3) gases and determining how the transistor characteristics are affected by gas-induced changes of contact properties, such as the Schottky barrier height and width, and by the doping level of the nanotube. From the theoretical fits of the experimental transfer characteristics at different concentrations of NO2 and NH3, we find that the CNTFET response can be modeled by introducing changes in the Schottky barrier height. These changes are directly related to the changes in the metal work function of the electrodes that we determine experimentally, independently, with a Kelvin probe. Our analysis yields a direct correlation between the ON – current and the changes in the electrode metal work function. Doping due to molecules adsorbed at the carbon-nanotube/metal interface also affects the transfer characteristics. |
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ISSN |
0008-6223 |
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no |
Call Number |
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Serial |
1778 |
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Author |
Akhmadishina, K. F.; Bobrinetskiy, I. I.; Komarov, I. A.; Malovichko, A. M.; Nevolin, V. K.; Fedorov, G. E.; Golovin, A. V.; Zalevskiy, A. O.; Aidarkhanov, R. D. |
Title |
Fast-response biological sensors based on single-layer carbon nanotubes modified with specific aptamers |
Type ![sorted by Type field, ascending order (up)](img/sort_asc.gif) |
Journal Article |
Year |
2015 |
Publication |
Semicond. |
Abbreviated Journal |
Semicond. |
Volume |
49 |
Issue |
13 |
Pages |
1749-1753 |
Keywords |
carbon nanotubes, CNT detectors |
Abstract |
The possibility of the fabrication of a fast-response biological sensor based on a composite of single-layer carbon nanotubes and aptamers for the specific detection of proteins is shown. The effect of modification of the surface of the carbon nanotubes on the selectivity and sensitivity of the sensors is investigated. It is shown that carboxylated nanotubes have a better selectivity for detecting thrombin. |
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Edition |
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ISSN |
1063-7826 |
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no |
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Serial |
1783 |
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Author |
Лудков, Денис Николаевич |
Title |
Терагерцовые смесители на горячих электронах из тонких сверхпроводниковых пленок NbN и NbTiN |
Type ![sorted by Type field, ascending order (up)](img/sort_asc.gif) |
Manuscript |
Year |
2005 |
Publication |
М. МПГУ |
Abbreviated Journal |
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Volume |
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Issue |
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Pages |
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Keywords |
HEB, detector, mixer |
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Thesis |
Ph.D. thesis |
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no |
Call Number |
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Serial |
479 |
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Author |
Масленников, Сергей Николаевич |
Title |
Смесители на эффекте электронного разогрева для терагерцового и инфракрасного диапазонов |
Type ![sorted by Type field, ascending order (up)](img/sort_asc.gif) |
Manuscript |
Year |
2007 |
Publication |
М. МПГУ |
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Pages |
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Keywords |
HEB, detector, mixer, terahertz, THz, infrared, IR, direct detection effect, conversion loss |
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Thesis |
Ph.D. thesis |
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Language |
Russian |
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no |
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Serial |
481 |
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Author |
Финкель, М. И. |
Title |
Терагерцовые смесители на эффекте электронного разогрева в ультратонких плёнках NbN и NbTiN |
Type ![sorted by Type field, ascending order (up)](img/sort_asc.gif) |
Manuscript |
Year |
2006 |
Publication |
М. МПГУ |
Abbreviated Journal |
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Issue |
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Pages |
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Keywords |
HEB, detector, mixer, terahertz, THz, infrared, IR, direct detection effect, conversion bandwidth, conversion loss |
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Ph.D. thesis |
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no |
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Serial |
597 |
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Author |
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Title |
InSb detectors technical data sheet |
Type ![sorted by Type field, ascending order (up)](img/sort_asc.gif) |
Miscellaneous |
Year |
2003 |
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Pages |
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Keywords |
InSb, detector |
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no |
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Serial |
476 |
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Author |
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Title |
Heterodyne detection: II. Astronomy 525. Lecture 30 |
Type ![sorted by Type field, ascending order (up)](img/sort_asc.gif) |
Miscellaneous |
Year |
2006 |
Publication |
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Pages |
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Keywords |
detector, mixer, heterodyne detection, mixing |
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no |
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Serial |
542 |
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Author |
Kahl, O.; Ferrari, S.; Kovalyuk, V.; Vetter, A.; Lewes-Malandrakis, G.; Nebel, C.; Korneev, A.; Goltsman, G.; Pernice, W. |
Title |
Spectrally multiplexed single-photon detection with hybrid superconducting nanophotonic circuits: supplementary material |
Type ![sorted by Type field, ascending order (up)](img/sort_asc.gif) |
Miscellaneous |
Year |
2017 |
Publication |
Optica |
Abbreviated Journal |
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Volume |
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Issue |
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Pages |
1-9 |
Keywords |
Quantum detectors; Spectrometers and spectroscopic instrumentation; Nanophotonics and photonic crystals; Fluorescence correlation spectroscopy; Fluorescence resonance energy transfer; Fluorescence spectroscopy; Imaging techniques; Optical components; Quantum key distribution |
Abstract |
This document provides supplementary information to “Spectrally multiplexed single-photon detection with hybrid superconducting nanophotonic circuits", DOI:10.1364/optica.4.000557. Here we detail the on-chip spectrometer design, its characterization and the experimental setup we used. In addition, we present a detailed report concerning the characterization of the superconducting nanowire single photon detectors. In the final sections, we describe sample preparation and characterization of the nanodiamonds containing silicon vacancy color centers. |
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Publisher |
Osa |
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Call Number |
Kahl:17 |
Serial |
1218 |
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