Low-power-consumption flat-panel light-emitting device driven by field-emission electron source using high-crystallinity single-walled carbon nanotubes

Norihiro Shimoi, Daisuke Abe, Kazuyuki Matsumoto, Yoshinori Sato, Kazuyuki Tohji

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Thin electrode films assembled through a wet process using single-walled carbon nanotubes (SWCNTs) are expected to play a role in reducing power consumption and saving energy in field-emission electron sources. The flat-panel light-emitting device for this study featured a linesequential- scanning-type electrode structure equipped with electrodes for on-and-off controls of electron emissions, on which high-crystallinity SWCNTs were uniformly distributed. The device successfully emitted electrons on the flat panel in a stable manner. A technology for amplifying the luminance output by controlling the persistence characteristics of a fluorescent screen was also successfully developed. By combining such elemental technologies, a flat-panel light-emission device, as a stand-alone planar lighting device, which achieves a high-luminance efficiency of 87 lm/W and energy-conserved driving, was assembled for the first time in the world. The creation of field-emission electron sources driven with ultralow power consumption, along with applications that utilize such devices, is expected in the future.

Original languageEnglish
Article number065101
JournalJapanese journal of applied physics
Volume56
Issue number6
DOIs
Publication statusPublished - 2017 Jun

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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