Science China Chemistry

, Volume 59, Issue 4, pp 466–471 | Cite as

Effects of spin-coating speed on the morphology and photovoltaic performance of the diketopyrrolopyrrole-based terpolymer

  • Fen Wu
  • Rongyan Hou
  • Liang Yang
  • Bin Zhao
  • Songting Tan
Articles

Abstract

Polymer solar cells (PSCs) were fabricated by combining a diketopyrrolopyrrole-based terpolymer (PTBT-HTID-DPP) as the electron donor, and [6,6]-phenyl C61 butyric acid methyl ester (PC61BM) as the electron acceptor, and the power conversion efficiency (PCE) of 4.31% has been achieved under AM 1.5 G (100 mW cm-2) illumination condition via optimizing the polymer/PC61BM ratio, the variety of solvent and the spin-coating speed. The impact of the spin-coating speed on the photovoltaic performance of the PSCs has been investigated by revealing the effects of the spin-coating speed on the morphology and the absorption spectra of the polymer/PC61BM blend films. When the thickness of the blend films are adjusted by spin-coating a fixed concentration with different spin-coating speeds, the blend film prepared at a lower spin-coating speed shows a stronger absorption per unit thickness, and the correspond device shows higher IPCE value in the longer-wavelength region. Under the conditions of similar thickness, the blend film prepared at a lower spin-coating speed forms a more uniform microphase separation and smaller domain size which leads to a higher absorption intensity per unit thickness of the blend film in long wavenumber band, a larger short-circuit current density (Jsc) and a higher power conversion efficiency (PCE) of the PSC device. Noteworthily, it was found that spin-coating speed is not only a way to control the thickness of active layer but also an influencing factor on morphology and photovoltaic performance for the diketopyrrolopyrrole-based terpolymer.

Keywords

polymer solar cells device optimization spin-coating speed morphology absorption per unit thickness 

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References

  1. 1.
    Liu YH, Zhao JB, Li ZK, Mu C, Ma W, Hu HW, Jiang K, Lin HR, Ade H, Yan H. Nat Commun, 2014, 5: 5293CrossRefGoogle Scholar
  2. 2.
    Guo X, Zhang MJ, Ma W, Ye L, Zhang SQ, Liu SJ, Ade Harald, Huang F, Hou JH. Adv Mater, 2014, 26: 4043–4049CrossRefGoogle Scholar
  3. 3.
    Zhang SQ, Ye L, Zhao WC, Yang B, Wang Q, Hou JH. Sci China Chem, 2015, 58: 248–256CrossRefGoogle Scholar
  4. 4.
    Zhang ZG, Li YF. Sci China Chem, 2015, 58: 192–209CrossRefGoogle Scholar
  5. 5.
    Jiang ZL, Yang D, Wang N, Zhang FJ, Zhao B, Tan ST, Zhang J. Sci China Chem, 2013, 56: 1573–1577CrossRefGoogle Scholar
  6. 6.
    He ZC, Zhong CM, Su SJ, Xu M, Wu HB, Cao Y. Nat Photon, 2012, 6: 593–597CrossRefGoogle Scholar
  7. 7.
    Yang D, Zhou LY, Chen LC, Zhao B, Zhang J and Li C. Chem Commun, 2012, 48: 8078–8080CrossRefGoogle Scholar
  8. 8.
    Zhang ZG, Qi BY, Jin ZW, Chi D, Qi Z, Li YF, Wang JZ. Energy Environ Sci, 2014, 7: 1966–1973CrossRefGoogle Scholar
  9. 9.
    Tan ZA, Li SS, Wang FZ, Lin J, Hou JH, Li YF. Sci Rep, 2014, 4: 4691Google Scholar
  10. 10.
    Tan ZA, Li LJ, Wang FZ, Xu Q, Li SS, Sun G, Tu XH, Hou XL, Hou JH, Li YF. Adv Energy Mater, 2014, 4: 1–7Google Scholar
  11. 11.
    Li N, Zhang WQ, Zhu N, Liu LL, Xie ZQ, Wu HB, Frank W, Ma YG. J Am Chem Soc, 2015, 137: 6995–6998CrossRefGoogle Scholar
  12. 12.
    Guo X, Zhang MJ, Tan JH, Zhang SQ, Huo LJ, Hu WP, Li YF, and Hou JH. Adv Mater, 2012, 24: 6536–6541CrossRefGoogle Scholar
  13. 13.
    Chirvase D, Parisi J, Hummelen JC, Dyakonov V. Nanotechnology, 2004, 15: 1317–1323CrossRefGoogle Scholar
  14. 14.
    Chen LM, Hong ZR, Li G, Yang Y. Adv Mater, 2009, 21: 1434–1449CrossRefGoogle Scholar
  15. 15.
    Ma WL, Yang CY, Gong X, Lee K, Heeger AJ. Adv Funct Mater, 2005, 15: 1617–1622CrossRefGoogle Scholar
  16. 16.
    Yang XN, Loos J, Veenstra SC, Verhees JH, Wienk M, Kroon JM, Michels AJ, Janssen AJ. Nano Lett, 2005, 5: 579–583CrossRefGoogle Scholar
  17. 17.
    Li G, Yao Y, Yang HC, Shrotriya V, Yang GW, Yang Y. Adv Funct Mater, 2007, 17: 1636–164416CrossRefGoogle Scholar
  18. 18.
    Zhao Y, Xie ZY, Qu Y, Geng YH, Wang LX. Appl Phys Lett, 2007, 90: 043504CrossRefGoogle Scholar
  19. 19.
    Gao L, Zhang J, He C, Zhang Y, Sun QJ, Li YF. Sci China Chem, 2014, 57: 966–972CrossRefGoogle Scholar
  20. 20.
    Wienk MM, Turbiez M, Gilot J, Janssen AJ. Adv Mater, 2008, 20: 2556–2560CrossRefGoogle Scholar
  21. 21.
    Ye L, Zhang SQ, Ma W, Fan BH, Guo X, Huang Y, Ade H, Hou JH. Adv Mater, 2012, 24: 6335–6341CrossRefGoogle Scholar
  22. 22.
    Hou RY, Zhao B, Wu F, Wang G, Shen TP, Guo H, Zhang J, Chen HJ, Tan ST. Org Electron, 2015, 20: 142–149CrossRefGoogle Scholar
  23. 23.
    Liu F, Wang C, Baral JK, Watkins JJ, Briseno AL, Russell TP. J Am Chem Soc, 2013, 135: 19248–19259CrossRefGoogle Scholar
  24. 24.
    Li WW, Hendriks KH, Furlan A, Roelofs WSC, Wienk MM, Janssen AJ. J Am Chem Soc, 2013, 135: 18942–18948CrossRefGoogle Scholar
  25. 25.
    Pettersson LA, Roman LS, Inganas O. J Appl Phys, 1999, 86: 487–496CrossRefGoogle Scholar
  26. 26.
    Vanlaeke P, Vanhoyland G, Aernouts T, Cheyns D, Deibel C, Manca J, Heremans P, Poortmans J. Thin Solid Film, 2006, 511–512: 358–361CrossRefGoogle Scholar

Copyright information

© Science China Press and Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • Fen Wu
    • 1
  • Rongyan Hou
    • 1
  • Liang Yang
    • 1
  • Bin Zhao
    • 1
    • 2
  • Songting Tan
    • 1
    • 2
  1. 1.Key Laboratory of Environmentally Friendly Chemistry and Applications, Ministry of Education; College of ChemistryXiangtan UniversityXiangtanChina
  2. 2.Key Laboratory of Polymeric Materials & Application Technology of Hunan ProvinceXiangtan UniversityXiangtanChina

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