Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Properties of ZnO:Al Films Prepared by Spin Coating of Aged Precursor Solution

  • Shrestha, Shankar Prasad (Department of Physics, Patan Multiple Campus, Tribhuvan University) ;
  • Ghimire, Rishi (Department of Physics, Kritipur Campus, Tribhuvan University) ;
  • Nakarmi, Jeevan Jyoti (Department of Physics, Kritipur Campus, Tribhuvan University) ;
  • Kim, Young-Sung (Technology Innovation Center, Sungkyunkwan University) ;
  • Shrestha, Sabita (Department of Physics and Center for Nanotubes and Nanostructured Composite, Sungkyunkwan University) ;
  • Park, Chong-Yun (Department of Physics and Center for Nanotubes and Nanostructured Composite, Sungkyunkwan University) ;
  • Boo, Jin-Hyo (Department of Chemistry and Institute of Basic Science, Sungkyunkwan University)
  • Published : 2010.01.20
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Abstract

Transparent conducting undoped and Al impurity doped ZnO films were deposited on glass substrate by spin coat technique using 24 days aged ZnO precursor solution with solution of ethanol and diethanolamine. The films were characterized by UV-Visible spectroscopy, X-ray diffraction (XRD), scanning electron microscope (SEM), electrical resistivity ($\rho$), carrier concentration (n), and hall mobility ($\mu$) measurements. XRD data show that the deposited film shows polycrystalline nature with hexagonal wurtzite structure with preferential orientation along (002) crystal plane. The SEM images show that surface morphology, porosity and grain sizes are affected by doping concentration. The Al doped samples show high transmittance and better resistivity. With increasing Al concentration only mild change in optical band gap is observed. Optical properties are not affected by aging of parent solution. A lowest resistivity ($8.5 \times 10^{-2}$ ohm cm) is observed at 2 atomic percent (at.%) Al. With further increase in Al concentration, the resistivity started to increase significantly. The decrease resistivity with increasing Al concentration can be attributed to increase in both carrier concentration and hall mobility.

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References

  1. Chen, Y. F.; Ko, H. J.; Hong, S. K.; Sekiuchi, T.; Yao, T.; Segawa, Y. J. Vac. Sci. Technol. B 2000, 18, 1514. https://doi.org/10.1116/1.591416
  2. Jeong, S. H.; Lee, J. W.; Lee, S. B.; Boo, J. H. Surf. Coat. Technol. 2003, 174, 187. https://doi.org/10.1016/S0257-8972(03)00600-5
  3. Lee, H. W.; Choi, B. G.; Shim, K. B.; Oh, Y. J. J. Ceram. Proc. Res. 2005, 6, 880.
  4. Smith, A. Thin Solid Films 2000, 376, 47. https://doi.org/10.1016/S0040-6090(00)01403-6
  5. Li, H.; Wang, J.; Liu, H.; Zhang, H.; Li, X. J. of Cryst. Growth 2005, 275, e943. https://doi.org/10.1016/j.jcrysgro.2004.11.098
  6. Chang, J. F.; Kuo, H. H.; Leu, I. C.; Hon, M. H. Sens. & Actua. B 2002, 84, 258. https://doi.org/10.1016/S0925-4005(02)00034-5
  7. Guille'n, C.; Herrero, J. Thin Solid Films 2006, 515, 640. https://doi.org/10.1016/j.tsf.2005.12.227
  8. Lin, K.; Tsai, P. Mater. Sci. and Engin. B 2007, 139, 81. https://doi.org/10.1016/j.mseb.2007.01.050
  9. Weller, H. C.; Mauch, R. H.; Bauer, G. H. Sol. Energ. Mat. Sol. C 1992, 27, 217. https://doi.org/10.1016/0927-0248(92)90084-3
  10. Szyszka, B.; Jäger, S. J. Non-Cryst. Solids 1997, 218, 74. https://doi.org/10.1016/S0022-3093(97)00288-3
  11. Ellmer, K.; Wendt, R. Surf. Coat. Technol. 1997, 93, 21. https://doi.org/10.1016/S0257-8972(97)00031-5
  12. Lee, S. Y.; Li, Y.; Lee, J. S.; Lee, J. K.; Natasi, M.; Crooker, S. A.; Jia, Q. X. Appl. Phys. Lett. 2004, 85, 218. https://doi.org/10.1063/1.1771810
  13. Barnes, T. M.; Leaf, J.; Fry, C.; Wolden, C. A. J. Cryst. Growth 2005, 274, 412. https://doi.org/10.1016/j.jcrysgro.2004.10.015
  14. Nunes, P.; Fortunato, E.; Tonello, P.; Fernandes, F. B.; Vilarino, P.; Martins, R. Vacuum 2002, 64, 281. https://doi.org/10.1016/S0042-207X(01)00322-0
  15. Shrestha, S. P.; Basnet, P. Proc. of SPIE 2008, 6793, 67930I.
  16. Natsume, Y.; Sakata, H. Thin Solid Films 2000, 372, 30. https://doi.org/10.1016/S0040-6090(00)01056-7
  17. Xu, Z. Q.; Deng, H.; Li, Y.; Guo, Q. H.; Li, Y. R. Materials Research Bulletin 2006, 41, 354. https://doi.org/10.1016/j.materresbull.2005.08.014
  18. Li, H.; Wang, J.; Liu, H.; Zhang, H.; Li, X. J. of Cryst. Growth 2005, 275, 943. https://doi.org/10.1016/j.jcrysgro.2004.11.098
  19. Xue, S. W.; Zu, X. T.; Xiang, X.; Deng, H.; Xu, Z. Q. Eur. Phys. J. Appl. Phys. 2006, 35, 195. https://doi.org/10.1051/epjap:2006096
  20. Lee, J. H., Ko, K. H.; Park, B. O. J. of Crystal Growth 2003, 247, 119. https://doi.org/10.1016/S0022-0248(02)01907-3
  21. Lin, K.; Tsai, P. Sci. Eng. B 2007, 139, 81. https://doi.org/10.1016/j.mseb.2007.01.050
  22. Pankove, J. I. In Optical Processes in Semiconductors; Englewoord Cliffs, N., Ed.; Prentice-Hall Inc.: 1971.
  23. Bursteib, E. Phys. Rev. 1954, 93, 632. https://doi.org/10.1103/PhysRev.93.632
  24. Moss, T. S. Proc. Phys. Soc. Lond. B 1954, 67, 775. https://doi.org/10.1088/0370-1301/67/10/306
  25. Mass, J.; Bhattacharya, P.; Katiyar, R. S. Mater. Sci. Eng. B 2003, 103, 9. https://doi.org/10.1016/S0921-5107(03)00127-2

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