Catalyst for carbon nanotube growth

US6897603B2 · kind B2 · utility

Assignee

• SI Diamond Technology, Inc. · US

Inventors

• Dongsheng Mao · Austin, US
• Yunjun Li · Austin, US
• Richard Lee Fink · Austin, US
• Valerie Ginsberg · Austin, US
• Mohshi Yang · Austin, US
• Leif Thuesen · Round Rock, US

Key dates

• Filing date: Aug 20, 2002
• Grant date: May 24, 2005
• Expiry date: May 30, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S977/742
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Nanoparticles are coated using thick-film techniques with a catalyst to promote the growth of carbon nanotubes thereon. In one example, alumina nanoparticles are coated with a copper catalyst. Such nanoparticles can be selectively deposited onto a substrate to create a field emission cathode, which can then be utilized within field emission devices.