【作者】 吴巍炜；

【导师】 秦勇；

【作者基本信息】 兰州大学 ， 材料物理与化学， 2014， 博士

【摘要】 在自供能紫外传感器中,高性能的电源和高性能低功耗的紫外传感器一直是人们追求的目标,如果进一步通过赋予紫外传感器窗口材料和封装材料特殊性能的话(如自清洁、定向传输等),该系统在很多特殊环境中的实际应用将会进一步得到拓展。对于发电机、传感器和自清洁界面来说,使用一维纳米材料来实现上述的目标具有很大的可行性。本文利用化学气相沉积、静电纺丝、水热和离子刻蚀等办法制备了多种一维纳米材料及其阵列。然后我们利用这些纳米材料,实现了高输出的压电纳米发电机和高响应电流的氧化锌紫外传感器,并将之结合形成自供能紫外传感器。随后我们研究了用一维纳米材料构建的仿生界面,实现了高分子材料的定向传输。最后我们通过研究仿荷叶表面结构,制备了具有自清洁性能的高分子表面。这两个工作为随后具有特殊性能的窗口材料和自供能紫外传感器的结合与应用奠定了基础。更多还原

【Abstract】 For self-powered UV sensor, high output electric power source and high performance sensor with low energy consumption is desired. If people can take advantage of smart surface (self-cleaning surface, directional transporting surface and so on) to construct the window of UV sensor, the application will be greatly augmented in many harsh environments. Using one dimensional nonmaterials to fabricate self-powered UV sensor and smart surface is practical。In this study, we synthesized many kinds of one dimensional nonmaterial’s through CVD, electrospinning, hydrothermal and ion milling methods. Based on those materials, we fabricated high output nanogenerator and high performance UV sensor. Furthermore, we integrate them together as a self-powered UV sensor. Then, two kinds of smart surfaces are prepared and investigated. One can directionally transport polymer sheet and small sphere. The other is lotus-leaf like and self-cleaning. These works paves the way of combining smart surface and self-powered UV sensor to work in harsh environment in the future.更多还原