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Energy Express

  • Editor: Bernard Kippelen
  • Vol. 18, Iss. S3 — Sep. 13, 2010
  • pp: A458–A466

ITO-free large-area organic solar cells

Seungkeun Choi, William J. Potscavage, Jr., and Bernard Kippelen  »View Author Affiliations

Optics Express, Vol. 18, Issue S3, pp. A458-A466 (2010)

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We report on large-area pentacene / C60 organic solar cells in which indium-tin-oxide (ITO) is replaced with a conductive polymer electrode and a 5 μm-thick metal grid is used to reduce resistive power losses. The performance of cells with the polymer electrode was compared with that of pentacene / C60 devices using ITO as the transparent electrode. For large-area devices (7.3 cm2) on glass substrates with an integrated metal grid, the performance of a device with the polymer electrode is comparable to that of a device with an ITO electrode combined with a grid.

© 2010 OSA

OCIS Codes
(040.5350) Detectors : Photovoltaic
(160.0160) Materials : Materials
(310.6860) Thin films : Thin films, optical properties
(350.6050) Other areas of optics : Solar energy
(310.7005) Thin films : Transparent conductive coatings

ToC Category:

Original Manuscript: June 7, 2010
Revised Manuscript: August 31, 2010
Manuscript Accepted: September 7, 2010
Published: September 8, 2010

Virtual Issues
Focus Issue: Thin-Film Photovoltaic Materials and Devices (2010) Optics Express

Seungkeun Choi, William J. Potscavage, and Bernard Kippelen, "ITO-free large-area organic solar cells," Opt. Express 18, A458-A466 (2010)

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  1. B. Kippelen and J.-L. Bredas, “Organic photovoltaics,” Energy Environmental Science 2(3), 251–261 (2009). [CrossRef]
  2. US Geological Survey, “ http://minerals.usgs.gov/minerals/pubs/commodity/indium/
  3. S.-I. Na, S.-S. Kim, J. Jo, and D.-Y. Kim, “Efficient and Flexible ITO-Free Organic Solar Cells Using Highly Conductive Polymer Anodes,” Adv. Mater. 20(21), 4061–4067 (2008). [CrossRef]
  4. R. Paetzold, K. Heuser, D. Henseler, S. Roeger, G. Wittmann, and A. Winnacker, “Performance of flexible polymeric light-emitting diodes under bending conditions,” Appl. Phys. Lett. 82(19), 3342–3344 (2003). [CrossRef]
  5. W. J. Potscavage, S. Yoo, and B. Kippelen, “Origin of the open-circuit voltage in multilayer heterojunction organic solar cells,” Appl. Phys. Lett. 93(19), 193308 (2008). [CrossRef]
  6. Y. Zhou, F. Zhang, K. Tvingstedt, S. Barrau, F. Li, W. Tian, and O. Inganas, “Investigation on polymer anode design for flexible polymer solar cells,” Appl. Phys. Lett. 92(23), 233308 (2008). [CrossRef]
  7. G. P. Kushto, W. Kim, and Z. H. Kafafi, “Flexible organic photovoltaics using conducting polymer electrodes,” Appl. Phys. Lett. 86(9), 093502 (2005). [CrossRef]
  8. J. Meiss, M. K. Riede, and K. Leo, “Towards efficient tin-doped indium oxide (ITO)-free inverted organic solar cells using metal cathodes,” Appl. Phys. Lett. 94(1), 013303 (2009). [CrossRef]
  9. B. O'Connor, C. Haughn, K.-H. An, K. P. Pipe, and M. Shtein, “Transparent and conductive electrodes based on unpatterned, thin metal films,” Appl. Phys. Lett. 93(22), 223304 (2008). [CrossRef]
  10. J. C. Bernède, Y. Berredjem, L. Cattin, and M. Morsli, “Improvement of organic solar cell performances using a zinc oxide anode coated by an ultrathin metallic layer,” Appl. Phys. Lett. 92(8), 083304 (2008). [CrossRef]
  11. J.-Y. Lee, S. T. Connor, Y. Cui, and P. Peumans, “Solution-processed metal nanowire mesh transparent electrodes,” Nano Lett. 8(2), 689–692 (2008). [CrossRef] [PubMed]
  12. K. Tvingstedt and O. Inganäs, “Electrode Grids for ITO Free Organic Photovoltaic Devices,” Adv. Mater. 19(19), 2893–2897 (2007). [CrossRef]
  13. M.-G. Kang, M.-S. Kim, J. Kim, and L. J. Guo, “Organic Solar Cells Using Nanoimprinted Transparent Metal Electrodes,” Adv. Mater. 20, 4308–4313 (2008).
  14. J. Zou, H.-L. Yip, S. K. Hau, and A. K.-Y. Jen, “Metal grid/conducting polymer hybrid transparent electrode for inverted polymer solar cells,” Appl. Phys. Lett. 96(20), 203301 (2010). [CrossRef]
  15. S. Choi, W. J. Potscavage, and B. Kippelen, “Area-scaling of organic solar cells,” J. Appl. Phys. 106(5), 054507 (2009). [CrossRef]
  16. B. Zimmermann, M. Glatthaar, M. Niggemann, M. K. Riede, A. Hinsch, and A. Gombert, “ITO-free wrap through organic solar cells–A module concept for cost-efficient reel-to-reel production,” Sol. Energy Mater. Sol. Cells 91(5), 374–378 (2007). [CrossRef]
  17. F. C. Krebs, “All solution roll-to-roll processed polymer solar cells free from indium-tin-oxide and vacuum coating steps,” Org. Electron. 10(5), 761–768 (2009). [CrossRef]
  18. S. Choi, W. J. Potscavage, Jr., and B. Kippelen, “Area-scaling of Organic Solar Cells and Integrated Modules,” in Organic Materials and Devices for Sustainable Energy Systems, J. Xue, ed. (Mat. Res. Soc. Symp. Proc., Boston, MA, USA, 2009), p. S06.
  19. S. Yoo, B. Domercq, and B. Kippelen, “Efficient thin-film organic solar cells based on pentacene/C60 heterojunctions,” Appl. Phys. Lett. 85(22), 5427–5429 (2004). [CrossRef]
  20. S. Yoo, W. J. Potscavage, B. Domercq, S.-H. Han, T.-D. Li, S. C. Jones, R. Szoszkiewicz, D. Levi, E. Riedo, S. R. Marder, and B. Kippelen, “Analysis of improved photovoltaic properties of pentacene/C60 organic solar cells: effects of exciton blocking layer thickness and thermal annealing,” Solid-State Electron. 51(10), 1367–1375 (2007). [CrossRef]
  21. F. Nüesch, L. J. Rothberg, E. W. Forsythe, Q. T. Le, and Y. Gao, “A photoelectron spectroscopy study on the indium tin oxide treatment by acids and bases,” Appl. Phys. Lett. 74(6), 880–882 (1999). [CrossRef]
  22. A. R. McGhie, A. F. Garito, and A. J. Heeger, “A gradient sublimer for purification and crystal growth of organic donor and acceptor molecules,” J. Cryst. Growth 22(4), 295–297 (1974). [CrossRef]
  23. Solarmer Energy, “ http://www.solarmer.com/ ” (2010)

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