The 'nanotriode:' A nanoscale field-emission tube

Autor:	A. A. G. Driskill-Smith, Haroon Ahmed, David G. Hasko
Rok vydání:	1999
Předmět:	Materials science Physics and Astronomy (miscellaneous) business.industry Transconductance Vacuum tube Electron Cathode law.invention Anode Field electron emission law Electrode Optoelectronics business Nanopillar
Zdroj:	Applied Physics Letters. 75:2845-2847
ISSN:	1077-3118 0003-6951
DOI:	10.1063/1.125169
Popis:	A nanoscale electron tube with a field-emission cathode and a control gate (nanotriode) has been fabricated and characterized. Electrons are field emitted from metal nanopillars with radii of about 1 nm into a vacuum nanochamber, collected at the anode, and controlled by a gate electrode. The nanochamber is sealed by an integrated anode and has vertical and horizontal dimensions of 100 nm. The turn-on voltage is less than 10 V and is independent of ambient temperature. Currents of 10 nA and transconductances of up to 6 nS per device have been observed; this would yield a transconductance of 60 S cm−2 at the maximum packing density of 1010 nanotriodes cm−2 for these devices. The emission stability is better than 3% at room temperature and improves to 0.1% at 20 K.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::941837640cdbf0c8a166d6f24f7b6206 https://doi.org/10.1063/1.125169 Zobrazit plný text záznamu