학회 |
한국화학공학회 |
학술대회 |
2006년 봄 (04/20 ~ 04/21, 대구 인터불고 호텔) |
권호 |
12권 1호, p.991 |
발표분야 |
재료 |
제목 |
Two-step growth of perfectly hexagonal-shaped ZnO nanowires and nanorods on silicon substrate by thermal evaporation: structural and optical properties |
초록 |
With the single-crystalline, perfect hexagonal shaped ZnO nanowires and nanorods have been grown on Au-coated silicon substrate via thermal evaporation method using the metallic zinc powder in presence of oxygen at temperature ranges between 550-450°C. Detailed structural analyses reveal that the obtained nanowires and nanorods are in wurtzite hexagonal phase and are preferentially oriented in the c-axis, [0001] direction. The detailed optical properties were studied by Raman and photoluminescence measurements at room temperature. Raman scattering has bespoken a good crystal quality with wurtzite hexagonal crystal structure while the room-temperature photoluminescence spectra showed sharp and strong UV emission with a suppressed green emission for both the nanostructures. |
저자 |
Umar Ahmad, 라현욱, 김상훈, 한윤봉
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소속 |
전북대 |
키워드 |
Two-step growth; hexagonal-shaped ZnO nanowires and nanorods
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E-Mail |
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원문파일 |
초록 보기 |