화학공학소재연구정보센터
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
소속 전북대
키워드 Two-step growth; hexagonal-shaped ZnO nanowires and nanorods
E-Mail
원문파일 초록 보기