论文部分内容阅读
表面蒸镀ITO薄膜是解决航天器太阳电池阵充放电问题的有效途径。薄膜会降低可见光透射率并增加航天器载荷,为此,提出一种网格状ITO薄膜解决方案。通过光学性能测试和电子辐照材料表面起电实验研究,分别给出了可见光平均透射率与薄膜覆盖率、表面电位与薄膜覆盖率的关系表达式,总结了平均透射率和表面电位随薄膜覆盖率的变化规律。结果表明,在380~780nm可见光范围内,薄膜覆盖率每增加10%,平均透射率下降约0.7%;薄膜覆盖率为10%的样品表面电位比无薄膜覆盖降低54%;在薄膜覆盖率为10%~100%范围内,表面电位随覆盖率增大近似呈线性下降,薄膜覆盖率每增加10%,表面电位降低约9%。该研究结论可为航天器太阳电池阵静电防护研究提供有益参考。
Surface evaporation of ITO film is to solve the spacecraft solar array charging and discharging an effective way. Thin films reduce visible light transmittance and increase spacecraft loading. Therefore, a grid-like ITO thin film solution is proposed. Through the optical performance test and electroporation experiments on the surface of the irradiated materials, the expressions of the average transmittance of visible light, the coverage of the film and the surface potential and the coverage of the film are given respectively. The average transmittance and the surface potential are covered with the film The rate of change. The results showed that the average transmittance decreased by about 0.7% for every 10% increase of the film coverage in the range of 380-780 nm. The surface potential of the sample with film coverage of 10% decreased by 54% In the range of 10% ~ 100%, the surface potential decreases linearly with the increase of coverage, and the surface potential decreases about 9% for every 10% increase of film coverage. The conclusions of this study can provide useful reference for the research of electrostatic protection of spacecraft solar arrays.