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International Journal of Photoenergy
Volume 2012, Article ID 879261, 6 pages
http://dx.doi.org/10.1155/2012/879261
Research Article

Effect of Sheet Resistance and Morphology of ITO Thin Films on Polymer Solar Cell Characteristics

1Materials Science Programme, Indian Institute of Technology Kanpur, Kanpur 208016, India
2Department of Electrical Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India

Received 8 October 2011; Accepted 21 December 2011

Academic Editor: Bhushan Sopori

Copyright © 2012 Ram Narayan Chauhan 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. B. Ren, X. Liu, M. Wang, and Y. Xu, “Preparation and characteristics of indium tin oxide (ITO) thin films at low temperature by r.f. magnetron sputtering,” Rare Metals, vol. 25, no. 6, pp. 137–140, 2006. View at Publisher · View at Google Scholar · View at Scopus
  2. D. Kalhor, S. A. Ketabi, A. Ebrahimzad, and M. M. Rezaei, “Annealing effects on opto-electronic properties of thermally-evaporated ITO/Ag/ITO multilayered films for use in color filter electrodes,” World Applied Sciences Journal, vol. 6, pp. 83–87, 2009. View at Google Scholar
  3. A. Sharma, P. J. Hotchkiss, S. R. Marder, and B. Kippelen, “Tailoring the work function of indium tin oxide electrodes in electrophosphorescent organic light-emitting diodes,” Journal of Applied Physics, vol. 105, no. 8, Article ID 084507, 6 pages, 2009. View at Publisher · View at Google Scholar · View at Scopus
  4. J. G. Yoon, S. W. Cho, E. Lee, and J. S. Chung, “Characteristics of indium-tin-oxide Schottky contacts to ZnMgO/ZnO heterojunctions with band gap grading,” Applied Physics Letters, vol. 95, no. 22, Article ID 222102, 3 pages, 2009. View at Publisher · View at Google Scholar · View at Scopus
  5. V. S. Reddy, K. Das, A. Dhar, and S. K. Ray, “The effect of substrate temperature on the properties of ITO thin films for OLED applications,” Semiconductor Science and Technology, vol. 21, no. 12, pp. 1747–1752, 2006. View at Publisher · View at Google Scholar · View at Scopus
  6. R. G. Gordon, “Criteria for choosing transparent conductors,” MRS Bulletin, vol. 25, no. 8, pp. 52–57, 2000. View at Google Scholar · View at Scopus
  7. S. E. Shaheen, R. Radspinner, N. Peyghambarian, and G. E. Jabbour, “Fabrication of bulk heterojunction plastic solar cells by screen printing,” Applied Physics Letters, vol. 79, no. 18, pp. 2996–2998, 2001. View at Publisher · View at Google Scholar · View at Scopus
  8. Y. Yang, Q. Huang, A. W. Metz et al., “High-performance organic light-emitting diodes using ITO anodes grown on plastic by room-temperature ion-assisted deposition,” Advanced Materials, vol. 16, no. 4, pp. 321–324, 2004. View at Google Scholar · View at Scopus
  9. Y. Hong, Z. He, N. S. Lennhoff, D. A. Banach, and J. Kanicki, “Transparent flexible plastic substrates for organic light-emitting devices,” Journal of Electronic Materials, vol. 33, no. 4, pp. 312–320, 2004. View at Google Scholar · View at Scopus
  10. Y. C. Park, Y. S. Kim, H. K. Seo, S. G. Ansari, and H. S. Shin, “ITO thin films deposited at different oxygen flow rates on Si(100) using the PEMOCVD method,” Surface and Coatings Technology, vol. 161, no. 1, pp. 62–69, 2002. View at Publisher · View at Google Scholar · View at Scopus
  11. J. Matsuo, H. Katsumata, E. Minami, and I. Yamada, “O2 cluster ion-assisted deposition for tin-doped indium oxide films,” Nuclear Instruments and Methods in Physics Research, Section B, vol. 161, pp. 952–957, 2000. View at Publisher · View at Google Scholar · View at Scopus
  12. J. Olivier, B. Servet, M. Vergnolle, M. Mosca, and G. Garry, “Stability/instability of conductivity and work function changes of ITO thin films, UV-irradiated in air or vacuum. Measurements by the four-probe method and by Kelvin force microscopy,” Synthetic Metals, vol. 122, no. 1, pp. 87–89, 2001. View at Publisher · View at Google Scholar · View at Scopus
  13. E. Holmelund, B. Thestrup, J. Schou et al., “Deposition and characterization of ITO films produced by laser ablation at 355 nm,” Applied Physics A, vol. 74, no. 2, pp. 147–152, 2002. View at Publisher · View at Google Scholar · View at Scopus
  14. V. Craciun, D. Craciun, X. Wang, T. J. Anderson, and R. K. Singh, “Transparent and conducting indium tin oxide thin films grown by pulsed laser deposition at low temperatures,” Journal of Optoelectronics and Advanced Materials, vol. 5, no. 2, pp. 401–408, 2003. View at Google Scholar · View at Scopus
  15. K. Nishio, T. Sei, and T. Tsuchiya, “Preparation and electrical properties of ITO thin films by dip-coating process,” Journal of Materials Science, vol. 31, no. 7, pp. 1761–1766, 1996. View at Google Scholar · View at Scopus
  16. D. Kim, Y. Han, J.-S. Cho, and S.-K. Koh, “Low temperature deposition of ITO thin films by ion beam sputtering,” Thin Solid Films, vol. 377-378, pp. 81–86, 2000. View at Publisher · View at Google Scholar
  17. K. H. Kim, K. Choi, E. S. Choi, J. H. Hwang, and J. T. Hwang, “Indium tin oxide thin films deposited by RF-magnetron sputtering for organic electro-luminescence devices,” Journal of Ceramic Processing Research, vol. 4, no. 2, pp. 96–100, 2003. View at Google Scholar · View at Scopus
  18. I. Baía, M. Quintela, L. Mendes, P. Nunes, and R. Martins, “Performances exhibited by large area ITO layers produced by r.f. magnetron sputtering,” Thin Solid Films, vol. 337, no. 1-2, pp. 171–175, 1999. View at Google Scholar · View at Scopus
  19. A. Subrahmanyam and N. Balasubramanian, “Studies of the photovoltaic behaviour of indium tin oxide (ITO)/silicon junctions prepared by the reactive thermal evaporation technique,” Semiconductor Science and Technology, vol. 7, no. 3, article 07, pp. 324–327, 1992. View at Publisher · View at Google Scholar · View at Scopus
  20. M. Nisha, S. Anusha, A. Antony, R. Manoj, and M. K. Jayaraj, “Effect of substrate temperature on the growth of ITO thin films,” Applied Surface Science, vol. 252, no. 5, pp. 1430–1435, 2005. View at Publisher · View at Google Scholar · View at Scopus
  21. N. Manavizadeh, F. A. Boroumand, E. Asl-Soleimani et al., “Influence of substrates on the structural and morphological properties of RF sputtered ITO thin films for photovoltaic application,” Thin Solid Films, vol. 517, no. 7, pp. 2324–2327, 2009. View at Publisher · View at Google Scholar · View at Scopus
  22. C. V. R. Vasant Kumar and A. Mansingh, “Effect of target-substrate distance on the growth and properties of rf-sputtered indium tin oxide films,” Journal of Applied Physics, vol. 65, no. 3, pp. 1270–1280, 1989. View at Publisher · View at Google Scholar · View at Scopus
  23. B. D. Cullity, Elements of X-Ray Diffractions, Addison-Wesley, Reading, Mass, USA, 1959.
  24. T. S. Sathiaraj, “Effect of annealing on the structural, optical and electrical properties of ITO films by RF sputtering under low vacuum level,” Microelectronics Journal, vol. 39, no. 12, pp. 1444–1451, 2008. View at Publisher · View at Google Scholar · View at Scopus
  25. R. Vinodkumar, K. J. Lethy, D. Beena et al., “Effect of ITO buffer layers on the structural, optical and electrical properties of ZnO multilayer thin films prepared by pulsed laser deposition technique,” Solar Energy Materials and Solar Cells, vol. 94, no. 1, pp. 68–74, 2010. View at Publisher · View at Google Scholar · View at Scopus
  26. A. K. Kulkarni, K. H. Schulz, T. S. Lim, and M. Khan, “Dependence of the sheet resistance of indium-tin-oxide thin films on grain size and grain orientation determined from X-ray diffraction techniques,” Thin Solid Films, vol. 345, no. 2, pp. 273–277, 1999. View at Publisher · View at Google Scholar · View at Scopus
  27. P. Thilakan, C. Minarini, S. Loreti, and E. Terzini, “Investigations on the crystallisation properties of RF magnetron sputtered indium tin oxide thin films,” Thin Solid Films, vol. 388, no. 1-2, pp. 34–40, 2001. View at Publisher · View at Google Scholar · View at Scopus
  28. J. C. Slater, “Barrier theory of the photoconductivity of lead sulfide,” Physical Review, vol. 103, no. 6, pp. 1631–1644, 1956. View at Publisher · View at Google Scholar · View at Scopus
  29. T. L. Benanti and D. Venkataraman, “Organic solar cells: an overview focusing on active layer morphology,” Photosynthesis Research, vol. 87, no. 1, pp. 73–81, 2006. View at Publisher · View at Google Scholar · View at PubMed · View at Scopus
  30. L. A. Dobrzanski, L. Wosinska, B. Dolzanska, and A. Drygała, “Comparison of electrical characteristics of silicon solar cells,” Journal of Achievements in Materials and Manufacturing Engineering, vol. 18, pp. 215–218, 2006. View at Google Scholar
  31. J. D. Servaites, M. A. Ratner, and T. J. Marks, “Practical efficiency limits in organic photovoltaic cells: functional dependence of fill factor and external quantum efficiency,” Applied Physics Letters, vol. 95, no. 16, Article ID 163302, 3 pages, 2009. View at Publisher · View at Google Scholar · View at Scopus
  32. R. Apetz and M. P. B. Van Bruggen, “Transparent alumina: a light-scattering model,” Journal of the American Ceramic Society, vol. 86, no. 3, pp. 480–486, 2003. View at Google Scholar · View at Scopus
  33. V. Dimitrov and S. Sakka, “Linear and nonlinear optical properties of simple oxides. II,” Journal of Applied Physics, vol. 79, no. 3, pp. 1741–1745, 1996. View at Google Scholar · View at Scopus
  34. C. Y. Kwong, A. B. Djurišić, P. C. Chui, and W. K. Chan, “CuPc/C60 solar cells—influence of the indium tin oxide substrate and device architecture on the solar cell performance,” Japanese Journal of Applied Physics, Part 1, vol. 43, no. 4, pp. 1305–1311, 2004. View at Google Scholar · View at Scopus
  35. V. D. Mihailetchi, P. W. M. Blom, J. C. Hummelen, and M. T. Rispens, “Cathode dependence of the open-circuit voltage of polymer:fullerene bulk heterojunction solar cells,” Journal of Applied Physics, vol. 94, no. 10, pp. 6849–6854, 2003. View at Publisher · View at Google Scholar · View at Scopus
  36. C. J. Brabec, N. S. Sariciftci, and J. C. Hummelen, “Plastic solar cells,” Advanced Funtional Materials, vol. 11, no. 1, pp. 15–26, 2001. View at Publisher · View at Google Scholar
  37. A. Gadisa, F. Zhang, D. Sharma, M. Svensson, M. R. Andersson, and O. Inganäs, “Improvements of fill factor in solar cells based on blends of polyfluorene copolymers as electron donors,” Thin Solid Films, vol. 515, no. 5, pp. 3126–3131, 2007. View at Publisher · View at Google Scholar · View at Scopus
  38. B. Muhsin, J. Renz, K. H. Drüe, G. Gobsch, and H. Hoppe, “Influence of polymer solar cell geometry on series resistance and device efficiency,” Physica Status Solidi (A), vol. 206, no. 12, pp. 2771–2774, 2009. View at Publisher · View at Google Scholar · View at Scopus
  39. J. Nelson, The Physics of Solar Cell, Imperial College Press, London, UK, 2003.
  40. M. Chegaar, Z. Ouennoughi, F. Guechi, and H. Langueur, “Determination of solar cells parameters under illuminated conditions,” The Journal of Electron Device, vol. 2, pp. 17–21, 2003. View at Google Scholar