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Solution-processed organic tandem solar cells with power conversion efficiencies >12%

Nature Photonics volume 11, pages 85–90 (2017)Cite this article

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Abstract

An effective way to improve the power conversion efficiency of organic solar cells is to use a tandem architecture consisting of two subcells, so that a broader part of the solar spectrum can be used and the thermalization loss of photon energy can be minimized1. For a tandem cell to work well, it is important for the subcells to have complementary absorption characteristics and generate high and balanced (matched) currents. This requires a rather challenging effort to design and select suitable active materials for use in the subcells. Here, we report a high-performance solution-processed, tandem solar cell based on the small molecules DR3TSBDT and DPPEZnP-TBO, which offer efficient, complementary absorption when used as electron donor materials in the front and rear subcells, respectively. Optimized devices achieve a power conversion efficiency of 12.50% (verified 12.70%), which represents a new level of capability for solution-processed, organic solar cells.

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Figure 1: Molecular structures, photovoltaic performance of the single-junction devices and tandem device architecture.
Figure 2: Optical simulation.
Figure 3: Photovoltaic performance of the tandem solar cell.
Figure 4: Tandem device performance parameters under different light intensities.

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Change history

  • 19 December 2016

    In the version of this Letter originally published online, in Fig. 1c, the bottom two values on the y axis were incorrect. This has now been corrected in all versions of the Letter.

References

  1. You, J., Dou, L., Hong, Z., Li, G. & Yang, Y. Recent trends in polymer tandem solar cells research. Prog. Polym. Sci. 38, 1909–1928 (2013).

    Article  Google Scholar 

  2. Service, R. F. Outlook brightens for plastic solar cells. Science 332, 293 (2011).

    Article  ADS  Google Scholar 

  3. He, Z. et al. Single-junction polymer solar cells with high efficiency and photovoltage. Nat. Photon. 9, 174–179 (2015).

    Article  ADS  Google Scholar 

  4. Zhao, J. et al. Efficient organic solar cells processed from hydrocarbon solvents. Nat. Energy 1, 15027 (2016).

    Article  ADS  Google Scholar 

  5. Kan, B. et al. A series of simple oligomer-like small molecules based on oligothiophenes for solution-processed solar cells with high efficiency. J. Am. Chem. Soc. 137, 3886–3893 (2015).

    Article  Google Scholar 

  6. Zhang, S. et al. Realizing over 10% efficiency in polymer solar cell by device optimization. Sci. China Chem. 58, 248–256 (2015).

    Article  Google Scholar 

  7. You, J. et al. A polymer tandem solar cell with 10.6% power conversion efficiency. Nat. Commun. 4, 1446 (2013).

    Article  ADS  Google Scholar 

  8. Zheng, Z. et al. Highly efficient tandem polymer solar cells with a photovoltaic response in the visible light range. Adv. Mater. 27, 1189–1194 (2015).

    Article  Google Scholar 

  9. Yusoff, A. B. et al. A high efficiency solution processed polymer inverted triple-junction solar cell exhibiting a power conversion efficiency of 11.83%. Energy Environ. Sci. 8, 303–316 (2015).

    Article  Google Scholar 

  10. Chou, C.-H., Kwan, W. L., Hong, Z., Chen, L.-M. & Yang, Y. A metal-oxide interconnection layer for polymer tandem solar cells with an inverted architecture. Adv. Mater. 23, 1282–1286 (2011).

    Article  Google Scholar 

  11. Zuo, L. et al. Design of a versatile interconnecting layer for highly efficient series-connected polymer tandem solar cells. Energy Environ. Sci. 8, 1712–1718 (2015).

    Article  Google Scholar 

  12. Kouijzer, S. et al. Efficient inverted tandem polymer solar cells with a solution-processed recombination layer. Adv. Energy Mater. 2, 945–949 (2012).

    Article  Google Scholar 

  13. Zhou, H. Q. et al. Polymer homo-tandem solar cells with best efficiency of 11.3%. Adv. Mater. 27, 1767–1773 (2015).

    Article  Google Scholar 

  14. Li, N. et al. Design of the solution-processed intermediate layer by engineering for inverted organic multi junction solar cells. Adv. Energy Mater. 3, 301–307 (2013).

    Article  Google Scholar 

  15. Gilot, J., Wienk, M. M. & Janssen, R. A. J. Optimizing polymer tandem solar cells. Adv. Mater. 22, E67–E71 (2010).

    Article  Google Scholar 

  16. Gevaerts, V. S., Furlan, A., Wienk, M. M., Turbiez, M. & Janssen, R. A. J. Solution processed polymer tandem solar cell using efficient small and wide bandgap polymer:fullerene blends. Adv. Mater. 24, 2130–2134 (2012).

    Article  Google Scholar 

  17. Dou, L. et al. Tandem polymer solar cells featuring a spectrally matched low-bandgap polymer. Nat. Photon. 6, 180–185 (2012).

    Article  ADS  Google Scholar 

  18. Zheng, Z. et al. Over 11% efficiency in tandem polymer solar cells featured by a low-band-gap polymer with fine-tuned properties. Adv. Mater. 28, 5133–5138 (2016).

    Article  Google Scholar 

  19. Mishra, A. & Bäuerle, P. Small molecule organic semiconductors on the move: promises for future solar energy technology. Angew. Chem. Int. Ed. 51, 2020–2067 (2012).

    Article  Google Scholar 

  20. Lin, Y. & Zhan, X. Oligomer molecules for efficient organic photovoltaics. Acc. Chem. Res. 49, 175–183 (2016).

    Article  Google Scholar 

  21. Gao, K. et al. Deep absorbing porphyrin small molecule for high-performance organic solar cells with very low energy losses. J. Am. Chem. Soc. 137, 7282–7285 (2015).

    Article  Google Scholar 

  22. Liu, Y. et al. Solution-processed small-molecule solar cells: breaking the 10% power conversion efficiency. Sci. Rep. 3, 3356 (2013).

    Article  Google Scholar 

  23. Riede, M. et al. Efficient organic tandem solar cells based on small molecules. Adv. Funct. Mater. 21, 3019–3028 (2011).

    Article  Google Scholar 

  24. Zhang, Q. et al. Evaluation of small molecules as front cell donor materials for high-efficiency tandem solar cells. Adv. Mater. 28, 7008–7012 (2016).

    Article  Google Scholar 

  25. Kan, B. et al. Solution-processed organic solar cells based on dialkylthiol-substituted benzodithiophene unit with efficiency near 10%. J. Am. Chem. Soc. 136, 15529–15532 (2014).

    Article  Google Scholar 

  26. Gao, K. et al. Multi-length-scale morphologies driven by mixed additives in porphyrin-based organic photovoltaics. Adv. Mater. 28, 4727–4733 (2016).

    Article  Google Scholar 

  27. Pattanasattayavong, P., Mottram, A. D., Yan, F. & Anthopoulos, T. D. Study of the hole transport processes in solution-processed layers of the wide bandgap semiconductor copper(I) thiocyanate (CuSCN). Adv. Funct. Mater. 25, 6802–6813 (2015).

    Article  Google Scholar 

  28. Gilot, J., Wienk, M. M. & Janssen, R. A. J. Measuring the external quantum efficiency of two-terminal polymer tandem solar cells. Adv. Funct. Mater. 20, 3904–3911 (2010).

    Article  Google Scholar 

  29. Timmreck, R. et al. Characterization of tandem organic solar cells. Nat. Photon. 9, 478–479 (2015).

    Article  ADS  Google Scholar 

  30. Zhang, Q. et al. Small-molecule solar cells with efficiency over 9%. Nat. Photon. 9, 35–41 (2015).

    Article  ADS  Google Scholar 

  31. Shrotriya, V. et al. Accurate measurement and characterization of organic solar cells. Adv. Funct. Mater. 16, 2016–2023 (2006).

    Article  Google Scholar 

Download references

Acknowledgements

The authors acknowledge financial support from MoST (2014CB643502, 2016YFA0200200), NSFC (51373078, 51422304, 91433101, 51323003, 51473053) and the International Science and Technology Cooperation Program of China (2013DFG52740).

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Author notes

  1. Miaomiao Li and Ke Gao: These authors contributed equally to this work

Authors and Affiliations

  1. The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, State Key Laboratory and Institute of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin, 300071, China

    Miaomiao Li, Xiangjian Wan, Qian Zhang, Bin Kan, Xuan Yang, Huanran Feng, Wang Ni, Yunchuang Wang, Hongtao Zhang & Yongsheng Chen

  2. School of Materials Science and Engineering, The National Institute for Advanced Materials, Nankai University, Tianjin, 300071, China

    Miaomiao Li, Xiangjian Wan, Qian Zhang, Bin Kan, Xuan Yang, Huanran Feng, Wang Ni, Yunchuang Wang, Hongtao Zhang & Yongsheng Chen

  3. Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, China

    Ke Gao, Ruoxi Xia, Hin-Lap Yip, Xiaobin Peng & Yong Cao

  4. Materials Science Division, Lawrence Berkeley National Lab, Berkeley, California, 94720, USA

    Feng Liu

  5. Department of Material Science, Fudan University, Shanghai, 200433, China

    Jiajun Peng & Ziqi Liang

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  1. Miaomiao Li
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Contributions

M.L. fabricated and characterized the devices with help from Q.Z. K.G. synthesized the donor material DPPEZnP-TBO. B.K. synthesized the donor material DR3TSBDT. X.Y. and H.F. prepared the ZnO electron transport material. J.P. and Z.L. performed the experiments on the measurement of n and k. H.Y. performed the optical simulations. Y.Ch. and X.W. supervised and coordinated the study. All authors discussed the results and commented on the manuscript.

Corresponding authors

Correspondence to Xiangjian Wan, Xiaobin Peng or Yongsheng Chen.

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The authors declare no competing financial interests.

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Li, M., Gao, K., Wan, X. et al. Solution-processed organic tandem solar cells with power conversion efficiencies >12%. Nature Photon 11, 85–90 (2017). https://doi.org/10.1038/nphoton.2016.240

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