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Journal of Nanomaterials
Volume 2012 (2012), Article ID 963485, 7 pages
http://dx.doi.org/10.1155/2012/963485
Research Article

Optical Properties of ZnO-Alloyed Nanocrystalline Films

1Department of Physics, University of Idaho, Moscow, ID 83844-0903, USA
2Department of Physics and Materials Science, Washington State University, Pullman, WA 99164-2814, USA

Received 27 November 2011; Revised 28 February 2012; Accepted 8 March 2012

Academic Editor: J. C. Sczancoski

Copyright © 2012 Hui Che et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Linked References

  1. Y. S. Park, C. W. Litton, T. C. Collins, and D. C. Reynolds, “Exciton spectrum of ZnO,” Physical Review, vol. 143, no. 2, pp. 512–519, 1966. View at Publisher · View at Google Scholar · View at Scopus
  2. W. Y. Liang and A. D. Yoffe, “Transmission spectra of ZnO single crystals,” Physical Review Letters, vol. 20, no. 2, pp. 59–62, 1968. View at Publisher · View at Google Scholar · View at Scopus
  3. R. Laskowski and N. E. Christensen, “Ab initio calculation of excitons in ZnO,” Physical Review B, vol. 73, no. 4, Article ID 045201, 7 pages, 2006. View at Publisher · View at Google Scholar · View at Scopus
  4. B. K. Meyer, H. Alves, D. M. Hofmann et al., “Bound exciton and donor-acceptor pair recombinations in ZnO,” Physica Status Solidi, vol. 241, no. 2, pp. 231–260, 2004. View at Publisher · View at Google Scholar · View at Scopus
  5. X.-B. Chen, J. Huso, J. L. Morrison, and L. Bergman, “The properties of ZnO photoluminescence at and above room temperature,” Journal of Applied Physics, vol. 102, no. 11, Article ID 116105, 2007. View at Publisher · View at Google Scholar · View at Scopus
  6. J. Huso, J. L. Morrison, H. Che, et al., “ZnO and MgZnO nanocrystalline flexible films: optical and material properties,” Journal of Nanomaterials, vol. 2011, Article ID 691582, 7 pages, 2011. View at Publisher · View at Google Scholar
  7. A. Ohtomo, M. Kawasaki, T. Koida et al., “MgxZn1xO as a II-VI widegap semiconductor alloy,” Applied Physics Letters, vol. 72, no. 19, pp. 2466–2468, 1998. View at Publisher · View at Google Scholar · View at Scopus
  8. S. Choopun, R. D. Vispute, W. Yang, R. P. Sharma, T. Venkatesan, and H. Shen, “Realization of band gap above 5.0 eV in metastable cubic-phase MgxZn1xO alloy films,” Applied Physics Letters, vol. 80, no. 9, pp. 1529–1531, 2002. View at Publisher · View at Google Scholar · View at Scopus
  9. R. C. Whited, C. J. Flaten, and W. C. Walker, “Exciton thermoreflectance of MgO and CaO,” Solid State Communications, vol. 13, no. 11, pp. 1903–1905, 1973. View at Scopus
  10. P. D. Johnson, “Some optical properties of MgO in the vacuum ultraviolet,” Physical Review, vol. 94, no. 4, pp. 845–846, 1954. View at Publisher · View at Google Scholar · View at Scopus
  11. U. Sahaym, M. G. Norton, J. Huso, J. L. Morrison, H. Che, and L Bergman, “Microstructure evolution and photoluminescence in nanocrystalline MgxZn1xO thin films,” Nanotechnology, vol. 22, no. 42, Article ID 425706, 2011. View at Publisher · View at Google Scholar
  12. X. Du, Z. Mei, Z. Liu et al., “Controlled growth of high-quality ZnO-based films and fabrication of visible-blind and solar-blind ultra-violet detectors,” Advanced Materials, vol. 21, no. 45, pp. 4625–4630, 2009. View at Publisher · View at Google Scholar · View at Scopus
  13. B. K. Meyer, A. Polity, B. Farangis et al., “Structural properties and bandgap bowing of ZnO1-xSx thin films deposited by reactive sputtering,” Applied Physics Letters, vol. 85, no. 21, pp. 4929–4931, 2004. View at Publisher · View at Google Scholar · View at Scopus
  14. C.-Y. Moon, S.-H. Wei, Y. Z. Zhu, and G. D. Chen, “Band-gap bowing coefficients in large size-mismatched II-VI alloys: first-principles calculations,” Physical Review B, vol. 74, Article ID 233202, 4 pages, 2006. View at Publisher · View at Google Scholar
  15. C. Persson, C. Platzer-Björkman, J. Malmström, T. Törndahl, and M. Edoff, “Strong valence-band offset bowing of ZnO1-xSx enhances p-type nitrogen doping of ZnO-like alloys,” Physical Review Letters, vol. 97, no. 14, Article ID 146403, 2006. View at Publisher · View at Google Scholar · View at Scopus
  16. J. Wu, W. Walukiewicz, and E. E. Haller, “Band structure of highly mismatched semiconductor alloys: coherent potential approximation,” Physical Review B, vol. 65, no. 23, Article ID 233210, 4 pages, 2002. View at Scopus
  17. K. M. Yu, W. Walukiewicz, W. Shan et al., “Synthesis and optical properties of II-O-VI highly mismatched alloys,” Journal of Applied Physics, vol. 95, no. 11 I, pp. 6232–6238, 2004. View at Publisher · View at Google Scholar · View at Scopus
  18. A. X. Levander, K. M. Yu, S. V. Novikov et al., “Gan1-xbix: extremely mismatched semiconductor alloys,” Applied Physics Letters, vol. 97, no. 14, Article ID 141919, 2010. View at Publisher · View at Google Scholar · View at Scopus
  19. M. C. Tarun, M. Z. Iqbal, and M. D. McCluskey, “Nitrogen is a deep acceptor in ZnO,” AIP Advances, vol. 1, no. 2, Article ID 022105, 7 pages, 2011. View at Publisher · View at Google Scholar
  20. J. I. Pankove, Optical Processes in Semiconductors, Dover, New York, NY, USA, 1971.
  21. M. Wang, E. J. Kim, S. Kim et al., “Optical and structural properties of sol—gel prepared MgZnO alloy thin films,” Thin Solid Films, vol. 516, no. 6, pp. 1124–1129, 2008. View at Publisher · View at Google Scholar · View at Scopus
  22. R. Viswanatha, S. Chakraborty, S. Basu, and D. D. Sarma, “Blue-emitting copper-doped zinc oxide nanocrystals,” Journal of Physical Chemistry B, vol. 110, no. 45, pp. 22310–22312, 2006. View at Publisher · View at Google Scholar · View at Scopus
  23. C. A. Parker, J. C. Roberts, S. M. Bedair et al., “Optical band gap dependence on composition and thickness of InxGa1xN (0<x<0.25) grown on gan,” Applied Physics Letters, vol. 75, no. 17, pp. 2566–2568, 1999. View at Scopus
  24. B. Ullrich, C. Zhang, E. F. Schubert, J. E. Cunningham, and K. V. Klitzing, “Transmission spectroscopy on sawtooth-doping superlattices,” Physical Review B, vol. 39, no. 6, pp. 3776–3779, 1989. View at Publisher · View at Google Scholar · View at Scopus
  25. B. K. Ridley, Quantum Processes in Semiconductors, Clarendon Press, Oxford University Press, New York, NY, USA, 1999.
  26. R. E. Marotti, D. N. Guerra, C. Bello, G. Machado, and E. A. Dalchiele, “Bandgap energy tuning of electrochemically grown ZnO thin films by thickness and electrodeposition potential,” Solar Energy Materials and Solar Cells, vol. 82, no. 1-2, pp. 85–103, 2004. View at Publisher · View at Google Scholar · View at Scopus
  27. F. Stern, “Dispersion of the index of refraction near the absorption edge of semiconductors,” Physical Review, vol. 133, no. 6A, pp. A1653–A1664, 1964. View at Publisher · View at Google Scholar · View at Scopus
  28. C. Tanguy, “Refractive index of direct bandgap semiconductors near the absorption threshold: influence of excitonic effects,” IEEE Journal of Quantum Electronics, vol. 32, no. 10, pp. 1746–1751, 1996. View at Scopus
  29. V. Srikant and D. R. Clarke, “On the optical band gap of zinc oxide,” Journal of Applied Physics, vol. 83, no. 10, pp. 5447–5451, 1998. View at Scopus
  30. D. Li, Y. H. Leung, A. B. Djurišić et al., “Different origins of visible luminescence in ZnO nanostructures fabricated by the chemical and evaporation methods,” Applied Physics Letters, vol. 85, no. 9, pp. 1601–1603, 2004. View at Publisher · View at Google Scholar · View at Scopus
  31. Y. W. Heo, D. P. Norton, and S. J. Pearton, “Origin of green luminescence in ZnO thin film grown by molecular-beam epitaxy,” Journal of Applied Physics, vol. 98, no. 7, Article ID 073502, 6 pages, 2005. View at Publisher · View at Google Scholar
  32. A. B. Djurišić, Y. H. Leung, K. H. Tam, et al., “Green, yellow, and orange defect emission from ZnO nanostructures: Influence of excitation wavelength,” Applied Physics Letters, vol. 88, no. 10, Article ID 103107, 3 pages, 2006. View at Publisher · View at Google Scholar
  33. R. Huang, S. Xu, W. Guo, et al., “Nitrogen deep accepters in ZnO nanowires induced by ammonia plasma,” Applied Physics Letters, vol. 99, no. 14, Article ID 143112, 3 pages, 2011. View at Publisher · View at Google Scholar
  34. L. Lyons, A. Janotti, and C. G. Van de Walle, “Why nitrogen cannot lead to p-type conductivity in ZnO,” Applied Physics Letters, vol. 95, no. 25, Article ID 252105, 3 pages, 2009. View at Publisher · View at Google Scholar
  35. L. Svob, C. Thiandoume, A. Lusson, M. Bouanani, Y. Marfaing, and O. Gorochov, “P-type doping with n and li acceptors of zns grown by metalorganic vapor phase epitaxy,” Applied Physics Letters, vol. 76, no. 13, pp. 1695–1697, 2000. View at Scopus