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Influence of thermal annealing-induced molecular aggregation on film properties and photovoltaic performance of bulk heterojunction solar cells based on a squaraine dye

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Abstract

Squaraine (SQ) dyes have been considered as efficient photoactive materials for organic solar cells. In this work, we purposely controlled the molecular aggregation of an SQ dye, 2,4-bis[4-(N,N-dibutylamino)-2-dihydroxyphenyl] SQ (DBSQ-(OH)2) in the DBSQ(OH)2:[6,6]-phenyl-C61-butyric acid methyl ester (PCBM) blend film by using the thermal annealing method, to study the influence of the molecular aggregation on film properties as well as the photovoltaic performance of DBSQ(OH)2:PCBM-based bulk heterojunction (BHJ) solar cells. Our results demonstrate that thermal annealing may change the aggregation behavior of DBSQ(OH)2 in the DBSQ(OH)2:PCBM film, and thus significantly influence the surface morphology, optical and electrical properties of the blend film, as well as the photovoltaic performance of DBSQ(OH)2:PCBM BHJ cells.

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References

  1. Günes S, Neugebauer H, Sariciftci N S. Conjugated polymerbased organic solar cells. Chemical Reviews, 2007, 107(4): 1324–1338

    Article  Google Scholar 

  2. Li Y. Molecular design of photovoltaic materials for polymer solar cells: toward suitable electronic energy levels and broad absorption. Accounts of Chemical Research, 2012, 45(5): 723–733

    Article  Google Scholar 

  3. Li G, Zhu R, Yang Y. Polymer solar cells. Nature Photonics, 2012, 6(3): 153–161

    Article  Google Scholar 

  4. Jiang W, Yu R, Liu Z, et al. Ternary nonfullerene polymer solar cells with 12.16% efficiency by introducing one acceptor with cascading energy level and complementary absorption. Advanced Materials, 2018, 30(1): 1703005

    Article  Google Scholar 

  5. Yu G, Gao J, Hummelen J C, et al. Polymer photovoltaic cells: Enhanced efficiencies via a network of internal donor–acceptor heterojunctions. Science, 1995, 270(5243): 1789–1791

    Article  Google Scholar 

  6. Roncali J, Leriche P, Blanchard P. Molecular materials for organic photovoltaics: small is beautiful. Advanced Materials, 2014, 26 (23): 3821–3838

    Article  Google Scholar 

  7. Chen G, Wang T, Li C, et al. Enhanced photovoltaic performance in inverted polymer solar cells using Li ion doped ZnO cathode buffer layer. Organic Electronics, 2016, 36: 50–56

    Article  Google Scholar 

  8. Cheng P, Zhang M, Lau T K, et al. Realizing small energy loss of 0.55 eV, high open-circuit voltage>1 V and high efficiency> 10% in fullerene-free polymer solar cells via energy driver. Advanced Materials, 2017, 29(11): 1605216

    Article  Google Scholar 

  9. He Z, Xiao B, Liu F, et al. Single-junction polymer solar cells with high efficiency and photovoltage. Nature Photonics, 2015, 9(3): 174–179

    Article  Google Scholar 

  10. Huang J, Li C Z, Chueh C C, et al. 10.4% Power conversion efficiency of ITO-free organic photovoltaics through enhanced light trapping configuration. Advanced Energy Materials, 2015, 5 (15): 1500406

    Article  Google Scholar 

  11. Duan S N, Dall’Agnese C, Ojima H, et al. Effect of solventinduced phase separation on performance of carboxylicindolinebased small-molecule organic solar cells. Dyes and Pigments, 2018, 151: 110–115

    Article  Google Scholar 

  12. Huang Y, Kramer E J, Heeger A J, et al. Bulk heterojunction solar cells: morphology and performance relationships. Chemical Reviews, 2014, 114(14): 7006–7043

    Article  Google Scholar 

  13. Wang T, Chen C, Guo K, et al. Improved performance of polymer solar cells by using inorganic, organic and doped cathode buffer layers. Chinese Physics B, 2016, 25(3): 038402

    Article  Google Scholar 

  14. Wei G, Wang S, Renshaw K, et al. Solution-processed squaraine bulk heterojunction photovoltaic cells. ACS Nano, 2010, 4(4): 1927–1934

    Article  Google Scholar 

  15. Mayerhöffer U, Deing K, Gruss K, et al. Outstanding short-circuit currents in BHJ solar cells based on NIR-absorbing acceptorsubstituted squaraines. Angewandte Chemie International Edition, 2009, 48(46): 8776–8779

    Article  Google Scholar 

  16. Sasabe H, Igrashi T, Sasaki Y, et al. Soluble squaraine derivatives for 4.9% efficient organic photovoltaic cells. RSC Advances, 2014, 4(81): 42804–42807

    Article  Google Scholar 

  17. Chen G, Sasabe H, Wang Z, et al. Co-evaporated bulk heterojunction solar cells with>6.0% efficiency. Advanced Materials, 2012, 24(20): 2768–2773

    Article  Google Scholar 

  18. Chen G, Sasabe H, Igarashi T, et al. Squaraine dyes for organic photovoltaic cells. Journal of Materials Chemistry A: Materials for Energy and Sustainability, 2015, 3(28): 14517–14534

    Article  Google Scholar 

  19. Chen G, Sasabe H, Sasaki Y, et al. A series of squaraine dyes: effects of side chain and the number of hydroxyl groups on material properties and photovoltaic performance. Chemistry of Materials, 2014, 26(3): 1356–1364

    Article  Google Scholar 

  20. Chen G, Sasabe H, Wang Z, et al. Solution-processed organic photovoltaic cells based on a squaraine dye. Physical Chemistry Chemical Physics, 2012, 14(42): 14661–14666

    Article  Google Scholar 

  21. Chen G, Si C, Zhang P, et al. Efficiency enhancement in DIBSQ: PC71BM organic photovoltaic cells by using Liq-doped Bphen as a cathode buffer layer. Frontiers of Materials Science, 2017, 11(3): 233–240

    Article  Google Scholar 

  22. Wu J, Si C, Chen Y, et al. Photovoltaic devices prepared through a trihydroxy substitution strategy on an unsymmetrical squaraine dye. Chemistry, 2018, 24(13): 3234–3240

    Article  Google Scholar 

  23. Würthner F, Kaiser T E, Saha-Möller C R. J-aggregates: from serendipitous discovery to supramolecular engineering of functional dye materials. Angewandte Chemie International Edition, 2011, 50(15): 3376–3410

    Article  Google Scholar 

  24. Deing K C, Mayerhöffer U, Würthner F, et al. Aggregationdependent photovoltaic properties of squaraine/PC61BM bulk heterojunctions. Physical Chemistry Chemical Physics, 2012, 14 (23): 8328–8334

    Article  Google Scholar 

  25. Spencer S, Hu H, Li Q, et al. Controlling J-aggregate formation for increased short-circuit current and power conversion efficiency with a squaraine donor. Progress in Photovoltaics: Research and Applications, 2014, 22(4): 488–493

    Article  Google Scholar 

  26. Brück S, Krause C, Turrisi R, et al. Structure–property relationship of anilino-squaraines in organic solar cells. Physical Chemistry Chemical Physics, 2014, 16(3): 1067–1077

    Article  Google Scholar 

  27. Zheng C, Penmetcha A R, Cona B, et al. Contribution of aggregate states and energetic disorder to a squaraine system targeted for organic photovoltaic devices. Langmuir, 2015, 31(28): 7717–7726

    Article  Google Scholar 

  28. Chen G, Sasabe H, Lu W, et al. J-aggregation of a squaraine dye and its application in organic photovoltaic cells. Journal of Materials Chemistry C: Materials for Optical and Electronic Devices, 2013, 1(40): 6547–6552

    Article  Google Scholar 

  29. Chen G, Si C, Zhang P, et al. The effect of processing solvent dependent film aggregation on the photovoltaic performance of squaraine:PC71BM bulk heterojunction solar cells. Organic Electronics, 2017, 51: 62–69

    Article  Google Scholar 

  30. Ambade R B, Ambade S B, Mane R S, et al. Interfacial engineering importance of bilayered ZnO cathode buffer on the photovoltaic performance of inverted organic solar cells. ACS Applied Materials & Interfaces, 2015, 7(15): 7951–7960

    Article  Google Scholar 

  31. Mishra A, Bäuerle P. Small molecule organic semiconductors on the move: promises for future solar energy technology. Angewandte Chemie International Edition, 2012, 51(9): 2020–2067

    Article  Google Scholar 

  32. Beverina L, Drees M, Facchetti A, et al. Bulk heterojunction solar cells – tuning of the HOMO and LUMO energy levels of pyrrolic squaraine dyes. European Journal of Organic Chemistry, 2011, 2011(28): 5555–5563

    Article  Google Scholar 

Download references

Acknowledgments

This work was financially supported by the National Natural Science Foundation of China (Grant No. 61604093), the Shanghai Pujiang Program (16PJ1403300), the Natural Science Foundation of Shanghai (16ZR1411000), the Science and Technology Commission of Shanghai Municipality Program (17DZ2281700), and the Shanghai Software and integrated circuit industry development special funds (170401).

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Authors and Affiliations

  1. School of Materials Science and Engineering, Shanghai University, Shanghai, 200072, China

    Pengpeng Zhang & Zhitian Ling

  2. Key Laboratory of Advanced Display and System Applications (Ministry of Education), Shanghai University, Shanghai, 200072, China

    Guo Chen & Bin Wei

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  1. Pengpeng Zhang
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  2. Zhitian Ling
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  3. Guo Chen
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  4. Bin Wei
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Correspondence to Guo Chen.

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Zhang, P., Ling, Z., Chen, G. et al. Influence of thermal annealing-induced molecular aggregation on film properties and photovoltaic performance of bulk heterojunction solar cells based on a squaraine dye. Front. Mater. Sci. 12, 139–146 (2018). https://doi.org/10.1007/s11706-018-0417-0

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  • DOI: https://doi.org/10.1007/s11706-018-0417-0

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