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Flexible electronics for space applications

机译：太空应用中的柔性电子

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NASA is currently developing a host of deployable structures for the exploration of space. These include balloons, solar sails, space-borne telescopes and membrane-based synthetic aperture radar. Each of these applications is driven by the need for a thin, low mass, large area structure (e.g., polymer-based) which could not be implemented using conventional engineering materials such as metals and alloys. In each case, there is also the need to integrate sensing and control electronics within the structure. However, conventional silicon-based electronics are difficult to integrate with such large, thin structures, due to a variety of concerns including mass, reliability and manufacturing issues. Flexible electronics, particularly thin film transistors (TFTs), are a potentially key enabling technology that may allow the integration of a wide range of sensors and actuators into these types of structures. There are numerous challenges, however, regarding the survivability of such devices during stowage and deployment of the structure, as well as during operation in the harsh environments of space. We have fabricated TFTs on polyimide substrates, and are investigating the durability of these devices with respect to relevant space environments. We are also developing flexible sensor technologies for the integration of distributed sensor networks on large area structures.
机译：NASA目前正在开发大量可部署结构，以探索太空。其中包括气球，太阳帆，太空望远镜和基于膜的合成孔径雷达。这些应用中的每一个都是由对薄，低质量，大面积结构（例如，基于聚合物的结构）的需求驱动的，这不能使用诸如金属和合金的常规工程材料来实现。在每种情况下，还需要在结构内集成传感和控制电子设备。然而，由于包括质量，可靠性和制造问题在内的各种考虑，常规的基于硅的电子器件难以与如此大的薄结构集成。柔性电子器件，尤其是薄膜晶体管（TFT），是潜在的关键启用技术，可以允许将各种传感器和执行器集成到这些类型的结构中。然而，关于这种装置在结构的积载和展开期间以及在恶劣的空间环境中操作期间的生存能力存在许多挑战。我们已经在聚酰亚胺基板上制造了TFT，并且正在研究这些器件相对于相关空间环境的耐久性。我们还开发了灵活的传感器技术，用于在大面积结构上集成分布式传感器网络。

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