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- W2316217072 abstract "This article describes the preparation, using layer-by-layer deposition techniques, of an all-solid-state flexible in-plane supercapacitor based on a poly(ethylene terephthalate) (PET) substrate, laminated with two strata of ultrathin multilayer films composed of 30 polyaniline (PANi)/reduced graphene oxide (RGO) bilayers and 30 poly(p-phenylenevinylene) (PPV)/RGO bilayers. The influence of the (PPV/RGO)30 stratum on the electrochemical properties of the (PANi/RGO)30/(PPV/RGO)30 film (denoted P30) (d = 90.1 nm) supported on a PET was evaluated and compared to the corresponding influence of the (PANi/RGO)53 film (denoted P53) (d = 91.5 nm). The volumetric capacitance of P30 at a discharge current of 20 A/cm3 (957 F/cm3) was much higher than that obtained from P53 (733 F/cm3), indicating that the (PPV/RGO)30 film performed well as a current collector. Furthermore, an all-solid-state flexible in-plane EC assembled with P30 electrodes in parallel mode (denoted EC30) exhibited an outstanding volumetric capacitance (152 F/cm3 at 20 A/cm3) with a high energy density (9.4 mW h/cm3) and power density (6.5 W/cm3), compared to EC53 (assembled with P53). The electron-transfer resistance of the P30 electrode corresponded to only 59% of the P53’s value (1.53 vs 2.60 kΩ cm2). The high capacitance of EC30 was attributed to the low internal resistance of P30, which resulted from the presence of additional in-plane electrical pathways in the electrode. The enhanced transport led to 85% capacitance retention by EC30 (69% for EC53) after a 1000 charge/discharge cycles test. The series resistance variations (ΔR/R0) of EC30 also indicated good electromechanical durability in the device, with a 5.0% increase in the resistance (contrasted with a 10.8% increase in EC53) over 1000 bending cycles at a minimum radius of 5 mm. The excellent electrochemical properties of EC30 may potentially meet the requirements for miniaturized electrodes in the manufacture of flexible, lightweight, mechanically durable microelectronic applications." @default.
- W2316217072 created "2016-06-24" @default.
- W2316217072 creator A5057251152 @default.
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- W2316217072 date "2014-04-28" @default.
- W2316217072 modified "2023-10-02" @default.
- W2316217072 title "Multilayered Poly(<i>p</i>-phenylenevinylene)/Reduced Graphene Oxide Film: An Efficient Organic Current Collector in an All-Plastic Supercapacitor" @default.
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- W2316217072 doi "https://doi.org/10.1021/la500636m" @default.
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