Journal
NANOTECHNOLOGY
Volume 19, Issue 15, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/19/15/155606
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When heated in a rapid thermal processor at 350 degrees C in air, cobalt thin (50 nm thick) films were transformed into Co3O4 nanorods in minutes. The nanorods are single-crystalline and are typically several hundred nanometers long and several tens of nanometers in diameter. They exhibited room-temperature photoluminescence in the visible range and good field emission properties, i. e. a low turn-on field of similar to 2.8 V mu m(-1) and good stability at high emission currents. This study provides a simple but rapid approach that is compatible with microtechnology and is capable of fabricating metal oxide nanorods at low substrate temperatures, on a large scale.
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