| 학회 |
한국화학공학회 |
| 학술대회 |
2005년 봄 (04/22 ~ 04/23, 여수대학교) |
| 권호 |
11권 1호, p.818 |
| 발표분야 |
재료 |
| 제목 |
Structural and optical properties of Sea-Urchin like ZnO structures grown on Si(100) substrate |
| 초록 |
Single crystalline Sea-Urchin like ZnO structures were grown on the Si(100) substrate with a high density at the temperature ranges between 500-600C, by the rapid thermal chemical vapor deposition method, using the high purity metallic Zn powder and oxygen as a source material for Zn and oxygen, respectively. These structures consist of straight nanorods with the blunt faceted ends having the diameter of 30-60 nm. The full array of one sea-urchin like structure was about 4-5 m. Detailed structural investigation using the high resolution transmission electron microscopy and selected area electron diffraction patters confirmed that the as-grown structures are single crystalline with wurtzite hexagonal and mostly grown along the [0001] and preferentially oriented in the c-axis direction. The optical property of the product was studied by the photoluminescence spectroscopy at room temperature, shows a suppressed and weak UV emission and a broad green emission, indicating that the structures consists of some structural defects and oxygen vacancies. |
| 저자 |
Umar Ahmad, Sekar Arumugam, 김상훈, 임용환, 한윤봉
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| 소속 |
전북대 |
| 키워드 |
ZnO; urchin like structure; photoluminescence
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| E-Mail |
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| 원문파일 |
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