In:
Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena, American Vacuum Society, Vol. 27, No. 2 ( 2009-03-01), p. 671-676
Kurzfassung:
A high density of tungsten oxynitride nanowires was synthesized by ammonia annealing of WO3 nanowires, which were grown on a tungsten substrate by thermal evaporation of WO3 powder. The morphology of WO3 nanowires was not changed upon ammonia annealing at 650°C, although the color of the sample changed drastically. X-ray diffraction and transmission electron microscopy analyses showed that the structure of the ammonia annealed nanowires matched well, with a cubic oxynitride, with the structure of W0.62(N0.62O0.38). The x-ray photoelectron spectroscopy and x-ray spectroscopy also confirmed the formation of the tungsten oxynitride nanowires. Field emission measurements showed a low turn-on field of 4.45V∕μm for the WNxOy nanowires, indicating that they can be used as potential field emitters.
Materialart:
Online-Ressource
ISSN:
1071-1023
,
1520-8567
Sprache:
Englisch
Verlag:
American Vacuum Society
Publikationsdatum:
2009
ZDB Id:
3117331-7
ZDB Id:
3117333-0
ZDB Id:
1475429-0
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