DOI QR코드

DOI QR Code

Encapsulated Silicon Nanocrystals Formed in Silica by Ion Beam Synthesis

  • Choi, Han-Woo (Korean Institute of Geoscience and Mineral Resources) ;
  • Woo, Hyung-Joo (Korean Institute of Geoscience and Mineral Resources) ;
  • Kim, Joon-Kon (Korean Institute of Geoscience and Mineral Resources) ;
  • Kim, Gi-Dong (Korean Institute of Geoscience and Mineral Resources) ;
  • Hong, Wan-Hong (Korean Institute of Geoscience and Mineral Resources) ;
  • Ji, Young-Yong (Korean Institute of Geoscience and Mineral Resources)
  • Published : 2004.04.20

Abstract

The photoluminescence (PL) emission of Si nanocrystals synthesized by 400 keV Si ion implanted in $SiO_2$ is studied as a function of ion dose and annealing time. The formation of nanocrystals at around 600 nm from the surface was confirmed by RBS and HRTEM, and the Si nanocrystals showed a wide and very intense PL emission at 700-900 nm. The intensity of this emission showed a typical behaviour with a fast transitory increase to reach a saturation with the annealing time, however, the red shift increased continuously because of the Ostwald ripening. The oversaturation of dose derived a decrease of PL intensity because of the diminishment of quantum confinement. A strong enhancement of PL intensity by H passivation was confirmed also, and the possible mechanism is discussed.

Keywords

References

  1. Song, H. Z.; Bao, X. M.; Li, N. S.; Zhang, J. Y. J. Appl. Phys.1997, 82, 4028. https://doi.org/10.1063/1.365712
  2. Shimizu-Iwayama, T.; Fujita, K.; Akai, M.; Nakao, S.; Saitoh, K.J. Non Cryst. Solids 1995, 187, 112. https://doi.org/10.1016/0022-3093(95)00122-0
  3. Min, K. S.; Shcheglov, K. V.; Yang, C. M.; Atwater, H. A.;Brongersma, M. L.; Polman, A. Appl. Phys. Lett. 1996, 69, 2033. https://doi.org/10.1063/1.116870
  4. Guha, S. J. Appl. Phys. 1998, 84, 5210. https://doi.org/10.1063/1.368812
  5. Zharng, J. Y.; Bao, X. M.; Li, N. S.; Song, H. Z. J. Appl. Phys.1998, 83, 3609. https://doi.org/10.1063/1.366578
  6. Lee, C. W.; Kim, D. I.; Oh, M. K. Bull. Korean Chem. Soc. 1993,14, 162. https://doi.org/10.1007/BF02706089
  7. Kim, D. I.; Lee, C. W. Bull. Korean Chem. Soc. 1995, 16, 1019.
  8. Lan, A. D.; Liu, B. X.; Bai, X. D. J. Appl. Phys. 1997, 82, 5144. https://doi.org/10.1063/1.366317
  9. Delerue, C.; Allan, G.; Lannoo, M. Phys. Rev. B 1993, 48, 11024. https://doi.org/10.1103/PhysRevB.48.11024
  10. Brongersma, M. L.; Polman, A.; Min, K. S.; Boer, E.; Tambo, T.;Atwater, H. A. Appl. Phys. Lett. 1998, 72, 2577. https://doi.org/10.1063/1.121423
  11. Kanazawa, Y.; Kageyama, T.; Takeoka, S.; Fujii, M.; Hayashi, S.;Yamamoto, K. Solid State Commun. 1997, 102, 533. https://doi.org/10.1016/S0038-1098(96)00774-0
  12. Zhuravlev, K. S.; Gilinsky, A. M.; Kobitsky, A. Y. Appl. Phys.Lett. 1998, 73, 2962. https://doi.org/10.1063/1.122644
  13. Kimura, K.; Iwasaki, S. J. Appl. Phys. 1998, 83, 1345. https://doi.org/10.1063/1.366837
  14. Ma, S. K.; Lue, J. T. Thin Solid Films 1997, 304, 353. https://doi.org/10.1016/S0040-6090(97)00014-X
  15. Lan, A.; Liu, B. X.; Bai, X. D. J. Appl. Phys. 1994, 82, 378.
  16. Min, K. S.; Shcheglove, K. V.; Yang, C. M.; Atwarter, H. A.;Brongersma, M. L.; Polman, A. Appl. Phys. Lett. 1998, 72, 4. https://doi.org/10.1063/1.120628
  17. Withrow, S. P.; White, C. W.; Meldrum, A.; Budai, J. D.; HembreeJr., D. M.; Barbour, J. C. J. Appl. Phys. 1999, 86, 1. https://doi.org/10.1063/1.371145
  18. Cheylan, S.; Elliman, R. G. Nucl. Instr. and Meth. in Phys. Res. B2001, 175-177, 422. https://doi.org/10.1016/S0168-583X(00)00608-X
  19. Shimizu-Iwayama, T.; Fujita, K.; Nakao, S.; Saitoh, K.; Fujita, T.;Itoh, N. J. Appl. Phys. 1994, 75, 7779. https://doi.org/10.1063/1.357031
  20. Lopez, M.; Garrido, B.; Bonafos, C.; Perez-Rodriguez, A.; Morante,J. R.; Claverie, A. Nucl. Instr. and Meth. in Phys. Res. B 2001,178, 89. https://doi.org/10.1016/S0168-583X(01)00498-0
  21. Bonafos, C.; Garrido, B.; Lopez, M.; Perez-Rodriguez, A.; Morante,J. R.; Ben Assayaf, G.; Claverie, A. Mat. Sci. Eng. B 1999, 379, 69.

Cited by

  1. ZnO Nanoparticles with Hexagonal Cone, Hexagonal Plate, and Rod Shapes: Synthesis and Characterization vol.29, pp.10, 2004, https://doi.org/10.5012/bkcs.2008.29.10.1960