To study the effects of low earth orbit (LEO) environment on film surface structure and resistance characteristics, reduced graphene oxide paper (rGOP) was irradiated by atomic oxygen (AO) in ground‐based simulation facility. A rough pits surface, chemical oxidation, and change in lamina thickness were found after AO exposure. The erosion yield under AO attack changed from 3.56 × 10⁻²⁵ to 4.04 × 10⁻²⁵ cm³/atom. The resistance data exhibited a linear relationship between R₀/R and AO fluence, and the maximum AO detect fluence reached to 5 × 10¹⁹ atom/cm³ when rGOP thickness was 0.8 μm, which implies that greater thickness is expected to improve space service life of rGOP.

中文翻译：

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原子氧暴露下还原氧化石墨烯纸的结构和电阻特性

为了研究低地球轨道（LEO）环境对薄膜表面结构和电阻特性的影响，在地面模拟设施中用原子氧（AO）辐照了还原的氧化石墨烯纸（rGOP）。暴露于AO后，发现了粗糙的凹坑表面，化学氧化和薄层厚度变化。AO侵蚀下的腐蚀产量从3.56×10 ^-25变为4.04×10 ^-25 cm ³ / atom。电阻数据在R ₀ / R和AO能量密度之间呈线性关系，当rGOP厚度为0.8μm时，最大AO检测能量密度达到5×10 ¹⁹ atom / cm ³，这意味着更大的厚度有望改善空间服务rGOP的寿命。