Creation of Individual Defects at Extremely High Proton Fluences in Carbon Nanotube p-n Diodes.

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Bibliographic Details
Title: Creation of Individual Defects at Extremely High Proton Fluences in Carbon Nanotube p-n Diodes.
Authors: Comfort, Everett S.1, Fishman, Matthew, Malapanis, Argyrios1, Hughes, Harold2, McMarr, Patrick2, Cress, Cory D.2, Bakhru, Hassaram1, Lee, Ji Ung1
Source: IEEE Transactions on Nuclear Science. 12/1/2011 Part 1 Part 1, Vol. 58 Issue 6, p2898-2903. 6p.
Subjects: Protons, Carbon nanotubes, Diodes, Radiation, Heavy water reactors, Oscillations, Xenon, Eigenvalues
Abstract: We show that carbon nanotubes are robust under high H2^{+} ion fluences. We draw this conclusion by analyzing radiation-induced defects in reconfigurable single-walled carbon nanotube p-n diodes with partially suspended nanotubes. Our analysis show that any defects created through radiation is likely the result of interactions between the nanotube and the substrate, whereas the suspended region of the nanotube remains undamaged. In addition, we show that key features in the diode characteristics can be explained by a single radiation-induced defect that enhances the minority carrier generation rate of only one carrier type. [ABSTRACT FROM PUBLISHER]
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Database: Engineering Source
Description
Abstract:We show that carbon nanotubes are robust under high H2^{+} ion fluences. We draw this conclusion by analyzing radiation-induced defects in reconfigurable single-walled carbon nanotube p-n diodes with partially suspended nanotubes. Our analysis show that any defects created through radiation is likely the result of interactions between the nanotube and the substrate, whereas the suspended region of the nanotube remains undamaged. In addition, we show that key features in the diode characteristics can be explained by a single radiation-induced defect that enhances the minority carrier generation rate of only one carrier type. [ABSTRACT FROM PUBLISHER]
ISSN:00189499
DOI:10.1109/TNS.2011.2170708