| 학회 |
한국재료학회 |
| 학술대회 |
2009년 가을 (11/05 ~ 11/06, 포항공과대학교) |
| 권호 |
15권 2호 |
| 발표분야 |
B. Nanomaterilas Technology(나노소재 기술) |
| 제목 |
Photoluminescence property of vertically aligned ZnO nanorods. |
| 초록 |
Vertically aligned zinc oxide (ZnO) nanorods (NRs) with different surface morphology were grown by metal organic chemical vapor deposition (MOCVD) on sapphire substrate with different deposition condition. Based on the surface morphology, ZnO nanostructures are divided into three types: nanoneedles, nanonails and nanorods with rounded tip. Variable temperature photoluminescence (PL) have employed to probe the exciton recombination in high density and vertically aligned ZnO Nanorod arrays. Low temperature photoluminescence measurements do not show any significant yellow emission, but the near band edge excitonic emission shows very strong dependence with the surface morphology. The recombination properties are expected to be different due to different surface-to-volume ratio and distribution of potential fluctuations of intrinsic defects. |
| 저자 |
S. N. Das1, J. P. Kar2, J. H. Choi3, J. M. Myoung1
|
| 소속 |
1Information and Electronic Materials Research Laboratory, 2Department of Material Science and Engineering, 3Yonsei Univ. |
| 키워드 |
ZnO; Photoluminescence
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| E-Mail |
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