Improvement of Luminescent Uniformity via Synthesizing the Carbon Nanotubes on a Fe–Ti Co-deposited Catalytic Layer
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Uniformity has been considered to be one of the most important criteria for carbon nanotubes (CNTs) to be utilized as the emitters in field-emission displays (FEDs) or backlight units (BLUs). Using co-deposited Fe and Ti film as a catalyst, a uniform distribution of catalytic nanoparticles was obtained after hydrogen pretreatment as compared with nanoparticles obtained only using a pure Fe film. It might be attributed to the suppression of coalescence of the Fe nanoparticles in the co-deposited Fe–Ti film during the CNTs growth. In addition, the length variation of the CNTs synthesized by thermal-chemical vapor deposition (thermal-CVD) was also remarkably suppressed. This resulted in a significant improvement of the luminescent uniformity, and homogeneous light emission was obtained from the CNTs at 700 V.
- Jpn J Appl Phys
Jpn J Appl Phys 46(2), 863-866, 2007-02-15
INSTITUTE OF PURE AND APPLIED PHYSICS