Properties of a field emission lighting device employing high crystallized single-wall carbon nanotubes

Norihiro Shimoi, Toshimasa Hojo, Ledezma Estrada Adriana, Sharon Marie Garrido, Yasumitsu Tanaka, Kazuyuki Tohji

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We developed a new cathode for a visible ray flat plane-emission device formed from a mixture of high crystallized single-wall carbon nanotubes (SWNTs) dispersed into an organic In2O3-SnO2 solution. A thin film cathode was fabricated by a simple coating process of the mixture onto a substrate. The turn-on field of a diode using the cathode was 1.2 V/μm and the brightness homogeneity in that plane was within 5 %. The brightness fluctuation from the lighting device could be reduced to within 1 % by employing high crystallized SWNTs. Furthermore, brightness efficiency, which is an important factor in comparing luminance devices, achieved more than 50 lm / W. This flat plane-emission device has the potential to provide a new approach to lighting in our life style and it also contributes to energy-saving through its low power consumption.

Original languageEnglish
Pages (from-to)737-740
Number of pages4
JournalDigest of Technical Papers - SID International Symposium
Volume44
Issue number1
DOIs
Publication statusPublished - 2013 Jun

Keywords

  • field emission
  • flat plane-emission device
  • high crystallized SWNTs

ASJC Scopus subject areas

  • Engineering(all)

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