Korean Journal of Chemical Engineering

, Volume 27, Issue 3, pp 999–1002 | Cite as

Optimization of inverted bulk heterojunction polymer solar cells

  • Bing Zhang
  • Dong-Hyun Lee
  • Heeyeop Chae
  • Chinho Park
  • Sung Min ChoEmail author


We have successively fabricated inverted bulk heterojunction polymer solar cells employing ZnO and MoO3 as electron and hole selective layers, respectively. The device structure is ITO/ZnO/P3HT: PCBM/MoO3/Al. Differently from conventional polymer solar cells, ITO and Al work as electron and hole collecting electrodes in this inverted structure, respectively. We have found the optimal thickness of ZnO and MoO3 to be 100 nm and 5 nm, respectively. The highest PCE was obtained to be 3.32% under AM 1.5 illumination at 1,000W/m2, which is the highest PCE of inverted solar cells reported previously in the literature.

Key words

Polymer Solar Cells Invert Structure Zinc Oxide Molybdenum Oxide 


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  1. 1.
    G. Li, V. Shrotriya, J. Huang, Y. Yao, T. Moriarty, K. Emery and Y. Yang, Nat. Mater., 4, 864 (2005).CrossRefGoogle Scholar
  2. 2.
    M. L. Ma, C.Y. Yang, X. Gong, K. Lee and A. J. Heeger, Adv. Funct. Mater., 15, 1617 (2005).CrossRefGoogle Scholar
  3. 3.
    J. Peet, J.Y. Kim, N. E. Coates, W. L. Ma, D. Moses, A. J. Heeger and G. C. Bazan, Nat. Mater., 6, 497 (2007).CrossRefGoogle Scholar
  4. 4.
    W.Y. Wong, X. Z. Wang, Z. He, A. B. Djurisic, C. T. Yip, K.Y. Cheung, H. Wang, C. S.K. Mak and W.K. Chan, Nat. Mater., 6, 521 (2007).CrossRefGoogle Scholar
  5. 5.
    A. K. K. Kyaw, X.W. Sun, C.Y. Jiang, G. Q. Lo, D.W. Zhao and D. L. Kwong, Appl. Phys. Lett., 93, 221107 (2008).CrossRefGoogle Scholar
  6. 6.
    M. P. de Jong, L. J. van Ijzendoorn and M. J.A. de Voigt, Appl. Phys. Lett., 77, 2255 (2000).CrossRefGoogle Scholar
  7. 7.
    K.W. Wong, H. L. Yip, Y. Luo, K.Y. Wong, W. M. Lau, K.H. Low, H. F. Chow, Z.Q. Gao, W. L. Yeung and C.C. Chang, Appl. Phys. Lett., 80, 2788 (2002).CrossRefGoogle Scholar
  8. 8.
    G. Li, C.-W. Chu, V. Shrotriya, J. Huang and Y. Yang, Appl. Phys. Lett., 88, 253503 (2006).CrossRefGoogle Scholar
  9. 9.
    C. Waldauf, M. Morana, P. Denk, P. Schilinsky, K. Coakley, S.A. Choulis and C. J. Brabec, Appl. Phys. Lett., 89, 233517 (2006).CrossRefGoogle Scholar
  10. 10.
    M. S. White, D. C. Olson, S. E. Shaheen, N. Kopidakis and D. S. Ginley, Appl. Phys. Lett., 89, 143517 (2006).CrossRefGoogle Scholar
  11. 11.
    V. Shrotriya, G. Li, Y. Yao, C.W. Chu and Y. Yang, Appl. Phys. Lett., 88, 073508 (2006).CrossRefGoogle Scholar
  12. 12.
    M. D. Irwin, B. Buchholz, A.W. Hains, R. P. H. Chang and T. J. Marks, Proc. Natl. Acad. Sci., U.S.A., 105, 2783 (2008).CrossRefGoogle Scholar
  13. 13.
    C. Tao, S. Ruan, X. Zhang, G. Xie, L. Shen, X. Kong, W. Dong, C. Liu and W. Chen, Appl. Phys. Lett., 93, 193307 (2008).CrossRefGoogle Scholar
  14. 14.
    S. Tokito, K. Noda and Y. Taga, J. Phys. D., 29, 2750 (1996).CrossRefGoogle Scholar
  15. 15.
    H. You, Y. F. Dai, Z.Q. Zhang and D.G. Ma, J. Appl. Phys., 101, 026105 (2007).CrossRefGoogle Scholar
  16. 16.
    V. Shrotriya, G. Li, Y. Yao, C.W. Chu and Y. Yang, Appl. Phys. Lett., 88, 073508 (2006).CrossRefGoogle Scholar
  17. 17.
    B. Zhang, H. Chae and S. M. Cho, Jpn. J. Appl. Phys., 48, 020208 (2009).CrossRefGoogle Scholar
  18. 18.
    C. Waldauf, P. Schilinsky, J. Hauch and C. J. Brabec, Thin Solid Films, 451–452, 503 (2004).CrossRefGoogle Scholar

Copyright information

© Korean Institute of Chemical Engineers, Seoul, Korea 2010

Authors and Affiliations

  • Bing Zhang
    • 1
  • Dong-Hyun Lee
    • 1
  • Heeyeop Chae
    • 1
  • Chinho Park
    • 2
  • Sung Min Cho
    • 1
    • 3
    Email author
  1. 1.School of Chemical EngineeringSungkyunkwan UniversitySuwonKorea
  2. 2.School of Display & Chemical EngineeringYeungnam UniversityGyeongsanKorea
  3. 3.Advanced Materials and Process Research Center for ITSungkyunkwan UniversitySuwonKorea

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