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| Atomic Oxygen Erosion Behavior and Resistance Characteristic of Graphene Film |
| Received:August 08, 2019 Revised:September 08, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2020.03.007 |
| KeyWord:graphene atomic oxygen sensor erosion yield |
| Author | Institution |
| JIANG Hai-fu |
Beijing Institute of Spacecraft Environment Engineering, Beijing , China |
| ZHANG Han-yu |
Beijing Satellite Manufacturing Factory, Beijing , China |
| JIANG Li-xiang |
Beijing Institute of Spacecraft Environment Engineering, Beijing , China |
| CHAI Li-hua |
Beijing University of Technology, Beijing , China |
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| Abstract: |
| The paper aims to study the space atomic oxygen (AO) environment adaptability of graphene film, to provide reference for its space applications. In this paper, the graphene film was fabricated by the blade-coating method. The AO irradiation test was conducted with microwave source AO simulation facility containing graphene film material and graphene resistance sensor and the AO fluence was 3.0×1020atoms/cm2 and7.5×1020atoms/cm2, respectively. The variations in surface morphology, surface composition, and resistance properties were investigated. It was found that low oxygen content graphene film can be fabricated by the blade-coating method. The film thickness loss was 5.3 μm and the atomic irradiation erosion yield was no more than 7.14×10-25 atoms/cm3 when the AO fluence was 7.5×1020atoms/cm2. The intensity of C—O and —COOH peak significantly decreased, and C==O peak increased obviously after AO exposure, indicating disorder increase of carbon atom. The resistance data showed a linear relationship between R0/R and AO fluence, the maximum AO detect fluence can reach 5×1019atoms/cm3 when the film thickness was 0.8 μm. Increase of film thickness was expected to improve service life of the sensor. The thickness loss, AO erosion yield, film structure, and resistance characteristic of graphene film are obtained, which could provide technical support for the space application of graphene film. |
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