| 학회 |
한국화학공학회 |
| 학술대회 |
2009년 봄 (04/23 ~ 04/24, 광주 김대중컨벤션센터) |
| 권호 |
15권 1호, p.972 |
| 발표분야 |
재료 |
| 제목 |
Deposition of tungsten oxynitride nanowires through simple evaporation and subsequent annealing |
| 초록 |
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. XRD and TEM analysis showed that the structure of the ammonia annealed nanowires matched well with cubic oxynitride with the structure of W0.62(N0.62O0.38). The XPS and EDX also confirmed the formation of the tungsten oxynitride nanowires. Field emission measurements showed a low turn-on field of 4.45 V/μm for the WNxOy nanowires, indicating that they can be used as potential field emitters. |
| 저자 |
전성호, 김혜영, 용기중
|
| 소속 |
포항공과대 |
| 키워드 |
nanowire; tungsten oxynitride; field emission
|
| E-Mail |
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| 원문파일 |
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