Layer-by-layer CdTe nanoparticle absorbers for ZnO nanorod solar cells - the influence of annealing on cell performance


The conformal coating of ZnO nanorods with CdTe nanoparticles using layer-by-layer (LbL) processing produces a quantum dot-sensitised solar cell. As the number of CdTe layers increases the absorption of incident light increases below the absorption onset of the nanoparticles (650 nm). Photoluminescence investigations of the CdTe-ZnO composite structure suggest a transfer of photoexcited electrons from the CdTe nanoparticles the ZnO nanorods. Filling of the semiconductor composite structure with CuSCN provides the solar cell with a p-type semiconductor to collect the photogenerated holes from the system. Annealing the CdTe-polymer coated nanorods lowers the series resistance of the cell by removing the polymer component of the film. A cell annealed at 350 °C has a Jsc of 0.12 mAcm-2, and a Voc of 49 mV under 0.25 mW/cm2 illumination.

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  1. 1

    O’Regan, B.; Grätzel, M. Nature, 353, 737–740 (1991).

    Article  Google Scholar 

  2. 2

    Tennakone, K.; Kumara, G. R. R. A.; Kottegoda, I. R. M.; Perera, V. P. S. & Aponsu, G. M. L. P. J. Phys. D: Appl. Phys., 31, 2326–2330 (1998).

    CAS  Article  Google Scholar 

  3. 3

    Bayón, R.; Musembi, R.; Belaidi, A.; Bär, M.; Guminskaya, T.; Fischer, C. H.; Lux-Steiner, M. C.; Dittrich, T. Comptes Rendus Chimie, 9, 730–734 (2006).

    Article  Google Scholar 

  4. 4

    Plass, R.; Pelet, S.; Krueger, J.; Grätzel, M.; Bach, U. J. Phys. Chem. B, 106, 7578–7580 (2002).

    CAS  Article  Google Scholar 

  5. 5

    Nadarajah, A.; Word, R. C.; VanSant, K; Könenkamp, R. Phys. Status Solidi B, 245, 1834–1837 (2008).

    CAS  Article  Google Scholar 

  6. 6

    Larramona, G.; Chone, C.; Jacob, A.; Sakakura, D.; Delatouche, B.; Pere, D.; Cieren, X.; Nagino, M.; Bayon, R. Chem. Mater., 18, 1688–1696 (2006).

    CAS  Article  Google Scholar 

  7. 7

    Herzog, C.; Belaidi, A.; Ogacho, A.; Dittrich, T. Energy Environ. Sci., 2, 962–964 (2009).

    CAS  Article  Google Scholar 

  8. 8

    Itzhaik, Y.; Niitsoo, O.; Page, M.; Hodes, G. J. Phys. Chem. C, 113, 4254–4256 (2009).

    CAS  Article  Google Scholar 

  9. 9

    Lee, H.; Leventis, H. C.; Moon, S.-J.; Chen, P.; Ito, S.; Haque, S. A.; Torres, T.; Nesch, F.; Geiger, T.; Zakeeruddin, S. M.; Grätzel, M.; Nazeeruddin, M. K. Adv. Funct. Mater., 19, 2735–2742 (2009).

    CAS  Article  Google Scholar 

  10. 10

    Könenkamp, R.; Boedecker, K.; Lux-Steiner, M. C.; Poschenrieder, M.; Zenia, F., Lévy-Clément, C.; Wagner, S. Appl. Phys. Lett., 77, 2575–2577 (2000).

    Article  Google Scholar 

  11. 11

    O’Regan, B.; Schwartz, D. T.; Zakeeruddin, S. M.; Grätzel, M. Adv. Mater., 12, 1263– 1267 (2000).

    Article  Google Scholar 

  12. 12

    Kieven, D.; Dittrich, T.; Belaidi, A.; Tornow, J.; Schwarzburg, K.; Allsop, N.; Lux-Steiner, M. Appl. Phys. Lett., 92, 153107 (2008).

    Article  Google Scholar 

  13. 13

    Law, M.; Greene, L. E.; Johnson, J. C.; Saykally, R.; Yang, P. Nat. Mater., 4, 455–459 (2005).

    CAS  Article  Google Scholar 

  14. 14

    Belaidi, A.; Dittrich, T.; Kieven, D.; Tornow, J.; Schwarzburg, K.; Lux-Steiner, M., Phys. Status Solidi RRL, 2, 172–174 (2008).

    CAS  Article  Google Scholar 

  15. 15

    Greene, L.; Law, M.; Tan, D.; Montano, M.; Goldberger, J.; Somorjai, G.; Yang, P. Nano Lett., 5, 1231–1236 (2005).

    CAS  Article  Google Scholar 

  16. 16

    Vayssieres, L. Adv. Mater., 15, 464–466 (2003).

    CAS  Article  Google Scholar 

  17. 17

    Gaponik, N.; Talapin, D.; Rogach, A.; Hoppe, K.; Shevchenko, E.; Kornowski, A.; Eychmüller, A.; Weller, H. J. Phys. Chem. B, 106, 7177–7185 (2002).

    CAS  Article  Google Scholar 

  18. 18

    Shavel, A.; Gaponik, N.; Eychmüller, A. J. Phys. Chem. B, 110, 19280–19284 (2006).

    CAS  Article  Google Scholar 

  19. 19

    Bertoni, C.; Gallardo, D.; Dunn, S.; Gaponik, N.; Eychmüller, A. Appl. Phys. Lett., 90, 034107 (2007).

  20. 20

    Kumara, G. R. R. A.; Konno, A.; Senadeera, G. K. R.; Jayaweera, P. V. V.; Silva, D. B. R. A. D.; Tennakone, K., Sol. Energy Mater. Sol. Cells, 69, 195–199 (2001).

    CAS  Article  Google Scholar 

  21. 21

    O’Regan, B.; Lenzmann, F.; Muis, R.; Wienke, J., Chem. Mater., 14, 5023–5029 (2002).

    Article  Google Scholar 

  22. 22

    Tena-Zaera, R.; Ryan, M. A.; Katty, A.; Hodes, G.; Bastide, S.; Lévy-Clément, C. Comptes Rendus Chimie, 9, 717–729 (2006).

    CAS  Article  Google Scholar 

  23. 23

    Grätzel, M. Nature, 414, 338–344 (2001).

    Article  Google Scholar 

  24. 24

    Gardner, H.; Gallardo, D. E.; Dunn, S.; Gaponik, N.; Eychmüller, A., J. Nanosci. Nanotechnol., 8, 2578–2581 (2008).

    CAS  Article  Google Scholar 

  25. 25

    Vanheusden, K.; Warren, W. L.; Seager, C. H.; Tallant, D. R.; Voigt, J. A.; Gnade, B. E. J. Appl. Phys. 79, 7983–7990 (1996).

    CAS  Article  Google Scholar 

  26. 26

    Wu, X. L.; Siu, G. G.; Fu, C. L.; Ong, H. C. Appl. Phys. Lett. 78, 2285–2287 (2001).

    CAS  Article  Google Scholar 

  27. 27

    Francis, S.; Varshney, L.; Sabharwal, S. Eur. Polym. J., 43, 2525–2531 (2007).

    CAS  Article  Google Scholar 

  28. 28

    Tena-Zaera, R.; Katty, A.; Bastide, S.; Lévy-Clément, C.; O’Regan, B.; Muñoz-Sanjosé, V., Thin Solid Films, 483, 372–377 (2005).

    CAS  Article  Google Scholar 

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Briscoe, J., Gallardo, D.E. & Dunn, S. Layer-by-layer CdTe nanoparticle absorbers for ZnO nanorod solar cells - the influence of annealing on cell performance. MRS Online Proceedings Library 1260, 602 (2010).

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