The 2050 carbon‐neutral vision spawns a novel energy structure revolution, and the construction of the future energy structure is based on equipment innovation. Insulating material, as the core of electrical power equipment and electrified transportation asset, faces unprecedented challenges and opportunities. The goal of carbon neutral and the urgent need for innovation in electric power equipment and electrification assets are first discussed. The engineering challenges constrained by the insulation system in future electric power equipment/devices and electrified transportation assets are investigated. Insulating materials, including intelligent insulating material, high thermal conductivity insulating material, high energy storage density insulating material, extreme environment resistant insulating material, and environmental‐friendly insulating material, are categorised with their scientific issues, opportunities and challenges under the goal of carbon neutrality being discussed. In the context of carbon neutrality, not only improves the understanding of the insulation problems from a macro level, that is, electrical power equipment and electrified transportation asset, but also offers opportunities, remaining issues and challenges from the insulating material level. It is hoped that this paper envisions the challenges regarding design and reliability of insulations in electrical equipment and electric vehicles in the context of policies towards carbon neutrality rules. The authors also hope that this paper can be helpful in future development and research of novel insulating materials, which promote the realisation of the carbon‐neutral vision.
Ga2O3 has the natural advantages in deep ultraviolet absorbance for performing deep ultraviolet photodetection. Due to the vital application of photodetector array in optical imaging, We, in this work, introduce a 4×4 Ga2O3-based photodetector array with five-fingers interdigital electrodes, in which the high-quality and uniform Ga2O3 thin film is grown by using metal-organic chemical vapor deposition technique, and the device is fabricated via ultraviolet photolithography, lift-off, and ion beam sputtering methods. The photodetector cell displays a responsivity of 2.65×10<sup>3</sup> A/W, a detectivity of 2.76×10<sup>16</sup> Jones, an external quantum efficiency of 1.29×10<sup>6</sup>%, and the photoconductive gain is as high as 12900. The 16-cells in this array shows good uniformity. The photodetector array discussed in this work provides a promised potential in deep ultraviolet sensing, from the views of optoelectronic performances and applied prospects.
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