Modulation-Doped Multiple Quantum Wells of Aligned Single-Wall Carbon Nanotubes

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dc.citation.articleNumber1606022en_US
dc.citation.issueNumber11en_US
dc.citation.journalTitleAdvanced Functional Materialsen_US
dc.citation.volumeNumber27en_US
dc.contributor.authorKomatsu, Natsumien_US
dc.contributor.authorGao, Weiluen_US
dc.contributor.authorChen, Peiyuen_US
dc.contributor.authorGuo, Chengen_US
dc.contributor.authorBabakhani, Aydinen_US
dc.contributor.authorKono, Junichiroen_US
dc.date.accessioned2017-08-04T12:29:40Zen_US
dc.date.available2017-08-04T12:29:40Zen_US
dc.date.issued2017en_US
dc.description.abstractHeterojunctions, 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.en_US
dc.identifier.citationKomatsu, Natsumi, Gao, Weilu, Chen, Peiyu, et al.. "Modulation-Doped Multiple Quantum Wells of Aligned Single-Wall Carbon Nanotubes." <i>Advanced Functional Materials,</i> 27, no. 11 (2017) Wiley: https://doi.org/10.1002/adfm.201606022.en_US
dc.identifier.digitalModulation-Doped_Multiple_Quantun_Wekks_Final_Manuscripten_US
dc.identifier.doihttps://doi.org/10.1002/adfm.201606022en_US
dc.identifier.urihttps://hdl.handle.net/1911/96573en_US
dc.language.isoengen_US
dc.publisherWileyen_US
dc.rightsThis is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Wiley.en_US
dc.subject.keywordcarbon nanotubesen_US
dc.subject.keywordspontaneous alignmenten_US
dc.subject.keywordstackingen_US
dc.subject.keywordchemical dopingen_US
dc.subject.keywordultra-broadband polarizersen_US
dc.titleModulation-Doped Multiple Quantum Wells of Aligned Single-Wall Carbon Nanotubesen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpost-printen_US
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