Speakers

Prof. Yongfang LI is a professor in Institute of Chemistry, Chinese Academy of Sciences (ICCAS) and in Soochow University. He received his Ph. D. degree from department of Chemistry, Fudan University in 1986, then did his postdoctoral research at ICCAS from 1986 to 1988. He became a staff in 1988 and promoted to professor in 1993 in ICCAS. He was elected as a member of Chinese Academy of Sciences in 2013. His present research field is photovoltaic materials and devices for polymer solar cells and perovskite solar cells. He has published more than 900 research papers and the published papers have been cited by others for more than 65000 times with h-index of 124.

Photovoltaic Materials for Polymer Solar Cells

Abstract

Polymer solar cells (PSCs) are composed of a blend active layer of a p-type conjugated polymer (p-CP) as donor and an n-type organic semiconductor (n-OS) as acceptor, sandwiched between a transparent electrode and a metal electrode. The photovoltaic materials and devices of the PSCs have attracted great attention in recent years, due to their advantages of low-cost solution-processing, light weight, thin active layer, and capability to be fabricated into flexible and semitransparent devices. In this presentation, I will talk about the recent research progress of the photovoltaic materials of the PSCs, including the molecular design strategy of the high performance photovoltaic materials^[1], the narrow bandgap small molecule acceptors (SMAs)^[2,3], the wide bandgap p-CP donors matching with the narrow bandgap SMAs^[4] and the low cost polymer donors^[5], the conjugated polymer acceptors based on the polymerized small molecule acceptors (PSMAs) and all-polymer solar cells^[6.7].

References

1. Yongfang Li, Acc. Chem. Res., 2012, 45, 723–733.
2. J. Yuan, Y. Zhang, L. Zhou, G. Zhang, H.-L. Yip, T.-K. Lau, X. Lu, C. Zhu, H. Peng,  P. A. Johnson, M. Leclerc, Y. Cao, J. Ulanski, Y. F. Li, Y. Zou, Joule, 2019, 3, 1140.
3. X. Kong, C. Zhu, J. Zhang, L. Meng, S. Qin, J. Zhang, J. Li, Z. Wei, Y. F. Li, Energy Envion. Sci. 2022, 15 (5), 2011–2020.
4. C. Zhu, L. Meng, J. Zhang, S. Qin, W. Lai, B. Qiu, J. Yuan, Y. Wan, W. Huang, Y. F. Li, Adv. Mater. 2021, e2100474.
5. C. Sun, F. Pan, H. Bin, J. Zhang, L. Xue, B. Qiu, Z. Wei, Z. G. Zhang, Y. F. Li, Nat. Commun. 2018, 9 (1), 743.
6. Z.-G. Zhang, Y. Yang, J. Yao, L. Xue, S. Chen, X. Li, W. Morrison, C. Yang, Y. F. Li, Angew. Chem., Int. Ed. 2017, 56, 13503-13507.
7. Z. G. Zhang, Y. F. Li, Angew. Chem., Int. Ed. 2021, 60, 4422-4433.