Fig. 5 | npj Flexible Electronics

Fig. 5

From: Large-scale roll-to-roll printed, flexible and stable organic bulk heterojunction photodetector

Fig. 5

a Distribution diagram of photocurrent and dark current of PBDTT-ffQx/PCBM BHJ photodetectors in a large-scale thin film on flexible PET and paper substrates. The insets are the photos of BHJ thin films on PET and paper substrates, respectively. (b) Statistical chart of R values of photodetector array on PET and paper substrates. (c) I–V curves of PBDTT-ffQx/PCBM BHJ photodetector measuring under 365 nm illumination for bending from 0 to 20,000 cycles. d The change trends of photocurrent and dark current of the PBDTT-ffQx/PCBM BHJ photodetector with 20,000 bending cycles. The inset shows the bending process of PBDTT-ffQx/PCBM BHJ photodetector from the original state

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