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Scheme 1. The chemical structure of BTP-ec9-4F and synthetic routes of PB2TCl-o and PB2TCl-i.

Figure 1. Optimal geometries of building block (B2TCl-o and B2TCl-i) determined by DFT.

Figure 2. (a, b) Normalized absorptions of PB2TCl-o and PB2TCl-i in o-DMB at different temperature; (c) Normalized absorptions of BTP-ec9-4F, PB2TCl-o and PB2TCl-i as films; (d) energy diagram of devices.

Figure 3. (a) J-V and (b) EQEs curves; (c) transmission spectra of semitransparent OSCs; (d) color coordinates with different anode thicknesses on the CIE 1931 chromaticity diagram and photograph of semitransparent OSCs without Ag electrode.

Figure 4. (a~d) GIWAXS patterns of the neat/blend films of PB2TCl-o and PB2TCl-i. (e) The corresponding scattering profiles of the neat and blend films.

Figure 5. AFM and TEM images of PB2TCl-o:BTP-ec9-4F and PB2TCl-i:BTP-ec9-4F blend films.

Scheme 2. The chemical structures of random terpolymer PW1 and PW2.

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  H. Wang, H. Lu, Y. N. Chen, G. Ran, A. Zhang, D. Li, N. Yu, Z. Zhang, Y. Liu, X. Xu, W. Zhang, Q. Bao, Z. Tang, Z. Bo, Adv. Mater. 2021, 2021, 2105483.

  R. Hou, M. Li, X. Ma, H. Huang, H. Lu, Q. Jia, Y. Liu, X. Xu, H. B. Li, Z. Bo, ACS Appl. Mater. Interfaces 2020, 12, 46220.

  ԭ��朽ӣ�https://doi.org/10.1002/aenm.202104028

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