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dc.contributor.authorKomatsu, Natsumi
Gao, Weilu
Chen, Peiyu
Guo, Cheng
Babakhani, Aydin
Kono, Junichiro
dc.date.accessioned 2017-08-04T12:29:40Z
dc.date.available 2017-08-04T12:29:40Z
dc.date.issued 2017
dc.identifier.citation Komatsu, Natsumi, Gao, Weilu, Chen, Peiyu, et al.. "Modulation-Doped Multiple Quantum Wells of Aligned Single-Wall Carbon Nanotubes." Advanced Functional Materials, 27, no. 11 (2017) Wiley: https://doi.org/10.1002/adfm.201606022.
dc.identifier.urihttps://hdl.handle.net/1911/96573
dc.description.abstract Heterojunctions, quantum wells, and superlattices with precise doping profiles are behind today's electronic and photonic devices based on III–V compound semiconductors such as GaAs. Currently, there is considerable interest in constructing similar artificial 3D architectures with tailored electrical and optical properties by using van der Waals junctions of low-dimensional materials. In this study, the authors have fabricated a novel structure consisting of multiple thin (≈20 nm) layers of aligned single-wall carbon nanotubes with dopants inserted between the layers. This “modulation-doped” multiple-quantum-well structure acts as a terahertz polarizer with an ultra-broadband working frequency range (from ≈0.2 to ≈200 THz), a high extinction ratio (20 dB from ≈0.2 to 1 THz), and a low insertion loss (<2.5 dB from ≈0.2 to 200 THz). The individual carbon nanotube films—highly aligned, densely packed, and large (2 in. in diameter)—were produced using vacuum filtration and then stacked together in the presence of dopants. This simple, robust, and cost-effective method is applicable to the fabrication of a variety of devices relying on macroscopically 1D properties of aligned carbon nanotube assemblies.
dc.language.iso eng
dc.publisher Wiley
dc.rights This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Wiley.
dc.title Modulation-Doped Multiple Quantum Wells of Aligned Single-Wall Carbon Nanotubes
dc.type Journal article
dc.citation.journalTitle Advanced Functional Materials
dc.subject.keywordcarbon nanotubes
spontaneous alignment
stacking
chemical doping
ultra-broadband polarizers
dc.citation.volumeNumber 27
dc.citation.issueNumber 11
dc.identifier.digital Modulation-Doped_Multiple_Quantun_Wekks_Final_Manuscript
dc.type.dcmi Text
dc.identifier.doihttps://doi.org/10.1002/adfm.201606022
dc.type.publication post-print
dc.citation.articleNumber 1606022


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