Fig. 5 | Polymer Journal

Fig. 5

From: Evaluation-oriented exploration of photo energy conversion systems: from fundamental optoelectronics and material screening to the combination with data science

Fig. 5

a Chemical structures of PBBTzNTz polymers. b Δσ transients of PBBTzNTz:PCBM films at their optimal blend ratios measured by Xe-flash TRMC (λex = white light pulse). Each decay corresponds to the respective alkyl chain. c Current density vs. voltage curves of the PBBTzNTz:PCBM devices. Their PCE values are appended. Reproduced from [100] with permission (Copyright: 2017 American Chemical Society)

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