Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV18)
Publication date: 21st February 2018
Molecular design has played a critical role in advancing photovoltaic properties of the non-fullerene (NF) acceptors.[1-3] In the various types of NF acceptors, the materials with a so-called A(acceptor)-D(donor)-A(acceptor) structure, in which electron-rich central unit is end-capped by two electron-deficient segments and hence intramolecular electron push-pull effect can be formed, has exhibited promising photovoltaic properties. Besides broadening of the absorption spectrum, modulating molecular energy levels and other well-studied properties,[4-7] a stronger intramolecular electron push-pull effect also affords other advantages in NF acceptors. A strong push-pull effect improves the dipole moment of the wings in IT-4F over IT-M, resulting in a lower miscibility than IT-M when blended with PBDB-TF. This feature leads to higher domain purity in the PBDB-TF: IT-4F blend and makes a contribution to the better photovoltaic performance. Moreover, the strong push-pull effect also decreases the vibrational relaxation, which makes IT-4F more promising than IT-M in reducing the energetic loss of organic solar cells (OSCs). Above all, a power conversion efficiency of 13.7% is recorded in PBDB-TF: IT-4F-based devices.
References
[1] C. B. Nielsen, S. Holliday, H. Y. Chen, S. J. Cryer, I. McCulloch, Acc. Chem. Res. 2015, 48, 2803.
[2] S. Li, Z. Zhang, M. Shi, C-Z. Li, H. Chen, Phys. Chem. Chem. Phys. 2017,19, 3440.
[3] W. Li, H. Yao, H. Zhang, S. Li, J. Hou, Chem Asian J 2017, 12, 2160.
[4] S. Li, L. Ye, W. Zhao, S. Zhang, S. Mukherjee, H. Ade, J. Hou, Adv. Mater. 2016, 28, 9423.
[5] Y. Yang, Z. G. Zhang, H. Bin, S. Chen, L. Gao, L. Xue, C. Yang, Y. Li, J. Am. Chem. Soc. 2016, 138, 15011.
[6] H. Yao, Y. Chen, Y. Qin, R. Yu, Y. Cui, B. Yang, S. Li, K. Zhang, J. Hou, Adv. Mater. 2016, 28, 8283.
[7] H. Yao, Y. Cui, R. Yu, B. Gao, H. Zhang, J. Hou, Angew. Chem. Int. Ed. 2017, 56, 3045.
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