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a) Photography and energy‐level diagram of the flexible devices fabricated on PEN substrates. b) Transmittance (at 550 nm) as a function of sheet resistance for the PEDOT:PSS anodes. c) Comparison of the J–V characteristics of the flexible OSCs with PEDOT:PSS anodes and ITO anodes. d) Normalized efficiencies for the flexible devices versus the bending cycles at r of 1 mm. Reproduced with permission.80 Copyright 2015, Wiley‐VCH.
