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説明:

Carbon nanotubes (CNTs), tubular nanostructures consisting of rolled-up graphene, are promising materials for electronic devices at nanometer and molecular regimes. Fundamentally, electronic properties of CNTs and their junctions depend on global and local chiralities, as defined by quantum boundary conditions along circumferential and longitudinal directions. As such, CNTs can behave as a metal, semiconductor, or a quantum dot in an electronic device. Although great progress has been made in CNT electronics, from building blocks such as resistors and transistors to complex functional devices such as logic and communication devices, thin film, and flexible electronics, sensors, and intelligent systems, mainly through control over the global chirality distribution of CNTs. In this review article, we summarize approaches to control global and local CNT chiralities by growth, separation, and transformation strategies. We then discuss opportunities and challenges for chirality engineering towards raising the performance limits of conventional electronic devices, and development of unconventional CNT quantum electronics including coherent quantum information devices and quantum sensors.

権利情報:

• In Copyright
  

キーワード: carbon nanotube, electronics, quantum information, quantum sensors, chirality

刊行年月日: 2024-02-14

出版者: Springer Science and Business Media LLC

掲載誌:

• Nature Reviews Electrical Engineering (ISSN: 29481201) vol. 1 issue. 3 p. 149-162

研究助成金:

• JSPS 25820336 (Investigations of the strain effects on the mobility of 10-nm Si transistors by in situ TEM)
• JSPS JP20K05281 (Chirality engineering of single-walled carbon nanotubes by in situ TEM probing)
• JSPS JP23H01796 (Formation mechanism and transport properties of carbon nanotube molecular junctions by chirality transformation)
• JST JPMJFR223T (CNT molecular junction based THz electromechanical systems)

原稿種別: 査読前原稿 (Author's original)

MDR DOI: https://doi.org/10.48505/nims.4761

公開URL: https://doi.org/10.1038/s44287-023-00011-8

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更新時刻: 2024-09-19 16:30:24 +0900

MDRでの公開時刻: 2024-09-19 16:30:24 +0900