Advancements in printable electronics technology allow the technique to populate laboratories on a widespread scale due to advantages printing electronics holds over customary fabrication methods. For utilization of printed electronics in cosmic environments it behooves end-users to understand the effects of ionizing radiation on these materials as such a threat to microelectronics can be quite detrimental even to the point of failure. This article contains results from exposing aerosol-jet printed graphene to gamma radiation and examines these effects when combined with aging to understand if printed graphene is a suitable candidate for space environments. It documents the effects of radiation on electrical properties of the printed graphene, and it demonstrates the roles of aging and exposure to ambient environment on these effects. Accompanying data taken of the majority hole carrier concentration show an increase of 3.57%, mobility 4.5%, and work function 2.21% from ionizing radiation. While these values are noticeable, aging alone increased the work function by 1.66%, and resistance by 22.9%. While the change observed in resistance is substantial, pacifying the graphene resulted in only a 5% change in resistance. This indicates the graphene ink proves resilient to gamma irradiation up to 1 Mrad(Si) when the discussed methods are implored. The findings indicate this method of aerosol-jet printing graphene based conductive inks demonstrates robustness against gamma radiation making the method a plausible alternative to traditional lithographic techniques even when utilized in environments where gamma radiation is prevalent such as space.

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老化、环境和伽马辐射下印刷石墨烯电性能的研究

由于印刷电子技术相对于传统制造方法的优势，可印刷电子技术的进步使得该技术能够广泛应用于实验室。为了在宇宙环境中使用印刷电子产品，最终用户有必要了解电离辐射对这些材料的影响，因为这种对微电子产品的威胁可能非常有害，甚至导致故障。本文包含将气溶胶喷射印刷石墨烯暴露于伽马辐射的结果，并检查这些效应与老化相结合，以了解印刷石墨烯是否适合太空环境。它记录了辐射对印刷石墨烯电性能的影响，并演示了老化和暴露于周围环境对这些影响的作用。随附的多数空穴载流子浓度数据显示，电离辐射导致的多数空穴载流子浓度增加了 3.57%，迁移率增加了 4.5%，功函数增加了 2.21%。虽然这些值很明显，但仅老化就使功函数增加了 1.66%，电阻增加了 22.9%。虽然观察到的电阻变化很大，但安抚石墨烯仅导致电阻变化 5%。这表明当采用所讨论的方法时，石墨烯墨水能够抵抗高达 1 Mrad(Si) 的伽马射线。研究结果表明，这种气溶胶喷射印刷石墨烯基导电油墨的方法表现出对伽马辐射的鲁棒性，使得该方法成为传统光刻技术的合理替代方案，即使在伽马辐射普遍存在的环境（例如太空）中使用时也是如此。