Effect of increased crystallinity of single-walled carbon nanotubes used as field emitters on their electrical properties

Norihiro Shimoi

研究成果: Article査読

7 被引用数 (Scopus)

抄録

Single-walled carbon nanotubes (SWCNTs) synthesized by arc discharge are expected to exhibit good field emission (FE) properties at a low driving voltage. We used a coating containing homogeneously dispersed highly crystalline SWCNTs produced by a high-temperature annealing process to fabricate an FE device by a wet-coating process at a low cost. Using the coating, we succeeded in reducing the power consumption of field emitters for planar lighting devices. SWCNTs synthesized by arc discharge have crystal defects in the carbon network, which are considered to induce inelastic electron tunneling that deteriorates the electrical conductivity of the SWCNTs. In this study, the blocking of the transport of electrons in SWCNTs with crystal defects is simulated using an inelastic electron tunneling model. We succeeded in clarifying the mechanism underlying the electrical conductivity of SWCNTs by controlling their crystallinity. In addition, it was confirmed that field emitters using highly crystalline SWCNTs can lead to new applications operating with low power consumption and new devices that may change our daily lives in the future.

本文言語English
論文番号214304
ジャーナルJournal of Applied Physics
118
21
DOI
出版ステータスPublished - 2015 12月 7

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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