Advanced Materials

Cover image for Vol. 27 Issue 37

September 12, 2002

High-density Si cone arrays...

with a defined orientation and covering a large area have been fabricated by ion beam sputtering. The density of the Si cones is as high as 6 x 108 cm–2. A silicide tip was found on top of each Si cone. The Si cone arrays have a relatively low turn-on field, which may be useful for applications of these arrays in electronic vacuum devices. (S. T. Lee et al., September 16, Adv. Mater. 2002, 14, 1308-1311)

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