This approach has led to the high performing polymer p(g1T2-g5T2) (Fig. While PEDOT:PSS is the standard benchmark for OMIEC performance ( ♜ * of roughly 50 F cm −1 V −1 s −1), there has been a recent trend in developing higher performance materials by modifying traditional semiconducting polymer backbones via addition of hydrophilic sidechains 10. 1a), which is a blend of the semiconducting polymer PEDOT, which gives the composite its electronic properties, and an ion conducting polymer, PSS, which also acts as a dopant. The most widely used OMIEC is PEDOT:PSS (Fig. However, this quantity does not capture critical device properties such as speed of (de)doping, which is presumed to primarily depend on the ionic transport properties 9 since ionic masses greatly exceed those of electronic carriers. The magnitude of amplification results primarily from the electronic properties of the material, namely the hole and/or electron mobility, µ, and the amount of charge modulation or (de)doping for a given change in potential (called volumetric capacitance, C *), where the product ♜ * is the typical materials figure of merit 7. The performance of OMIECs for use in organic electrochemical transistors (OECTs) is benchmarked by their ability to amplify small voltage signals. At the core of OMIEC device operation is the conversion of ionic currents from an external electrolyte to modulations in the electronic carrier density of a conjugated polymer (CP) 8. These devices benefit from a combination of excellent electronic properties (hole mobilities of 1 to 10 cm 2 V −1 s −1) and high ionic conductivities (up to 10 −2 S cm −1) 7. Organic mixed ionic-electronic conductors (OMIECs) have emerged for applications in bioelectronics where their properties can be exploited for sensing 1, neural recording 2, complementary logic 3, energy harvesting 4 and storage 5, and memory 6. We show that the timescale of hole-limited doping can be controlled by the degree of microstructural heterogeneity, enabling the design of conjugated polymers with improved electrochemical performance. Using operando optical microscopy, we reveal that electrochemical doping speeds in a state-of-the-art polythiophene can be limited by poor hole transport at low doping levels, leading to substantially slower switching speeds than expected. Here, we show that this basic assumption does not hold for conjugated polymer electrodes. In semiconducting electrodes, electrochemical doping is assumed to be limited by motion of ions due to their large mass compared to electrons and/or holes. While the mixed conductors enabling these technologies are widely used, the dynamic relationship between ionic and electronic transport is generally poorly understood, hindering the rational design of new materials. Thermal Conductivity: ≥0.12 W/m.Simultaneous transport and coupling of ionic and electronic charges is fundamental to electrochemical devices used in energy storage and conversion, neuromorphic computing and bioelectronics. Tensile Strength at Break: 58N/cm Test method GB-T7753Įlongation at Break: 60% Test method GB-T7753ĭielectric Strength: 4000 Volts Test method GB/T7752-87 and 40 to 70% relative humidity in the original packaging.Īdhesion to Steel: 1.4N/cm Test method GB-T2972 Storage Environment: Store under normal conditions of 10☌. The low static properties of our Kapton Tape can eliminate circuit board degradation. Conventional polyimide tape typically generate over 10,000 volts during use which can damage electronic components. Suitable for applications such as PCB Masking, High Temperature Clamping, Keypad and Membrane Switch Applications, Surface Protection, Splicing of Silicone Papers and Films, Powder Coating Masking and Electroplating.ģ5mm Wide High Temperature Kapton Polyimide TapeĪpplications: PCB Masking, High Temperature Clamping, Keypad and Membrane Switch Applications, Surface Protection, Splicing of Silicone Papers and Films, Powder Coating Masking and Electroplating.įeatures: Employs a proprietary technology that results in extremely low electrostatic discharge at unwind and removal form SUS.High Temperature Kapton Tape - Heat Resistant Maximum Temperature 260 degreesC.33m Long Reel, Backing Thickness - 0.025mm, Tape Thickness - 0.060mm.
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