Transparent carbon nanotube field emission devices for display and lamp

✍ Scribed by Cho, Yousuk ;Lee, Sunhee ;An, Myungchan ;Kim, Dojin

• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: English
• Weight: 312 KB
• Volume: 204
• Category: Article
• ISSN: 0031-8965
• DOI: 10.1002/pssa.200675317

✦ Synopsis

Abstract

A new, simple method to fabricate transparent carbon nanotube field emission devices is developed. The highly graphitized, single wall carbon nanotubes (SWNTs) are attached to an Sn/ITO glass by the arc discharge method. Post‐heat treatments of the sample below the deformation temperature of soda‐lime glass form a Sn–SWNT composite, and the nanotubes form good mechanical adhesion and electrical contact with the substrates. When the composite is oxidized in air below 400 °C, the Sn particles change to a transparent oxide form. The emission current density of the heat‐treated SWNT–Sn composite is about 1 mA/cm^2^ at an electric field of 3 V/μm. The emission current density of the SWNT–SnO__~x~__ composite is similar. However, at a higher oxidation temperature, the emitter shows more stable emission property and longer life time. The transparency of the emitter can be useful in the design of emitter devices. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)