Korean Journal of Crystallography (한국결정학회지)

Korean Crystallographic Association (한국결정학회)
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Vaccum Coating Synthesis and Characterization of the CdSe Nanostructures as a Semiconductor

화합물 반도체 CdSe 나노구조의 진공 코팅합성과 특성

  • Published : 2004.01.01
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Abstract

In order to find the optical properties of CdSe thin film and CdSe nanostructure, the following experiments were performed: the CdSe wurtzite nanostructure was made by using 99.99% CdSe (Aldrich) powder with the $SiO_x$ substrates and the $AlO_x$ membranes in $7{\times}10^{-6}$ torr vacuum. (The average vacuum coating speed being 1 ${\AA}$/sec). The calculations obtained were about 200 nm diameter of nanotubes on the $AlO_x$ membranes and a crystallite size of about 2 nm on the $SiO_x$ substrates. These results were verified through the Scanning Electron Microscopy (SEM) analysis, thin film X-ray diffraction analysis and emission spectroscopy.

CaSe wurtzite 구조를 갖는 박막과 나노구조의 광특성을 조사하기 위하여, 99.99% CdSe 분말(Aldrich)을 $7{\times}10^{-6}$ torr 진공상태에서 $SiO_x$ 기판과 다공성 $AlO_x$ 형판 위에 평균 증착속도 1 ${\AA}$/sec로 증착하였다. 주사 전자현미경 분석법(SEM) 및 박막 X-선 회절분석법과 형광분석법에 의해서 확인한 결과, $AlO_x$ 형판을 주형으로 사용하여 얻은 CdSe 튜브의 직경은 약 200 nm이었고, $SiO_x$ 기판위에 형성된 CdSe 박막의 결정립의 크기는 약 2 nm이었으며 형광특성 실험결과와 일치하였다.

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References

  1. Manna, L., Scher, E. C. and Alivisatos A. P., J. Am. Chem. Soc., 122, 12700 (2000)
  2. Yvon, K., Jeitscho, W. and Parthe, E., J. Appl. Cryst., 10, 73 (1997)
  3. Choi, Y. D., Kim, W. T. and Park, H., J. Kor. Phys. Soc., 30(1), 79 (1997)
  4. Chen, C. C., Chao, C. Y. and Lang, Z. H., Chem Mat., 12, 1516 (2000)
  5. Necheva, D., Levi, Z. and Pamukchieva, V., J. Phys.: Condens. Matter., 12, 3967 (2000)
  6. Peng, Z. A. and Peng, X., J. Am. Chem. Soc., 123, 183 (2001) https://doi.org/10.1021/ja003633m