A monolithic nanodiamond lateral field emission triode

✍ Scribed by Subramanian, K. ;Kang, W. P. ;Davidson, J. L.

• Book ID: 105365663
• Publisher: John Wiley and Sons
• Year: 2009
• Tongue: English
• Weight: 247 KB
• Volume: 206
• Category: Article
• ISSN: 0031-8965
• DOI: 10.1002/pssa.200982219

✦ Synopsis

Abstract

A laterally configured field emission device comprised of nanodiamond has shown low turn‐on and operating voltages, and enhanced performance, owing to lithographic control over the device parameters, viz., interelectrode spacing, emitter geometry, and large‐area array structure. This work deals with the development of a monolithic nanodiamond lateral vacuum triode. Gate‐controlled current modulation behavior is clearly observed. The low applied electric fields required to initiate and modulate the electron emission between the electrodes are attributed to the geometry and material composition of the nanodiamond lateral emitter. Other measured parameters include 1.1 µA (anode current density ∼1 A/cm^2^) per finger; DC gain/amplification factor: 200; output impedance: ∼10 GΩ. The g~m~ was found to increase exponentially with V~g~, suggesting that the electron current is well modulated by the gate voltage. The device characteristics were consistent with Fowler–Nordheim emission, the extracted anode current arising from field emission tunneling mechanism.