Development and testing of coatings for orbital space radiation environments

Pellicori, S. F.; Martinez, Carol L.; Hausgen, Paul E.; Wilt, David M.

doi:10.1364/ao.53.00a339

Cited by 29 publications

(8 citation statements)

References 13 publications

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“…Local protection is an additional screen designed to protect critical nodes and hardware components. The use of such a screen does not entail a serious increase in the mass or dimensions of the spacecraft units and is one of the most effective and cost-effective approaches to ensuring the radiation protection of electronic equipment [21, 22]. The use of such screens allows the use of commercial and industrial class chips instead of radiation-resistant chips, which makes it possible to reduce the price of electronic equipment and expand the range of components used.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and radiation shielding properties of polyimide/Bi2O3 composites

Павленко

Черкашина

Yastrebinsky

2019

Heliyon

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Radiation shielding composites based on polyimide and Bi 2 O 3 were synthesized. Surface and physical-mechanical properties of polyimide/Bi 2 O 3 composites were studied. Bi 2 O 3 particles were modified by polymethylphenylsiloxane for the uniform distribution of filler in composites. This paper presents data on the production of composites in two ways: hot- and cold-pressing. The hot-pressing method for the synthesis of composites is preferable compared to the cold-pressing method (the density increases by 10–12%, and the Vickers microhardness by 10–20%). The results show that the introduction of Bi 2 O 3 significantly increases the thermal stability of the composites. At 680 °C, a polymer composite containing 10 wt% Bi 2 O 3 retains 9.7% of its mass, and at 60 wt% Bi 2 O 3 , retains 58.4%. The radiation-protective characteristics of the composites with respect to gamma radiation were evaluated by experimental and theoretical methods. High radiation-protective characteristics of the composites have been established in the gamma-quanta energy range of 0.1–1 MeV.

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Section: Introductionmentioning

confidence: 99%

Synthesis and radiation shielding properties of polyimide/Bi2O3 composites

Павленко

Черкашина

Yastrebinsky

2019

Heliyon

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“…[28,29] In a desire to reduce weight these products tend to be 0.005 in. thick, which is challenging to use as a process substrate [30,31] therefore borosilicate glass was more readily sourced and suitable for MAPI deposition. A second sample (control B) with a similar architecture but without the SiO 2 layer was additionally monitored, and neither control shows any such changes (Figure S1, Supporting Information) to the substrates.…”

Section: Optical Characterizationmentioning

confidence: 99%

Evaluation of Hybrid Perovskite Prototypes After 10‐Month Space Flight on the International Space Station

Delmas

Erickson

Arteaga

et al. 2023

Advanced Energy Materials

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are driven by human life support systems, scientific exploration and Earth observation equipment, telecommunications, and electric propulsion systems. There is great interest in highly efficient perovskite-structured thin-film solar cells for space applications. [1,2] These are promising candidates due to their excellent optoelectronic characteristics, low-cost, high performance, [2][3][4] and their facile manufacturability [5] potentially suitable for in-space manufacturing. [6] These traits coupled with their defect tolerance, [7,8] and radiation tolerance [9] have garnered interest for aerospace applications. Prior to the widespread implementation of metal halide perovskites (MHPs) into the space environment, solar cells must pass rigorous American Institute of Aeronautics and Astronautics Standard 111 (AIAA-S111) space qualification testing. [10] Low earth orbit (LEO), 160-2000 km above the Earth's surface, is an ideal place to operate MHPs either on the International Space Station or on satellites. The harsh environment of LEO includes thermal cycling (±120 ⁰C), vacuum (10 −6 -10 −9 torr), ultra-violet radiation, exposure to atomic oxygen (flux 10 13 -10 15 AO/cm 2 with collision energy of 5 eV), plasma (10 6 cm −3 , ≤1 eV electron temperature), and ionizing radiation of electrons, protons, micrometeoroids (60 km s −1 ) and orbital debris (10 km s −1 ). [11] We must demonstrate MHP durability in relevant space environments to evidence feasibility. Implementing Metal halide perovskites (MHPs) have emerged as a prominent new photovoltaic material combining a very competitive power conversion efficiency that rivals crystalline silicon with the added benefits of tunable properties for multijunction devices fabricated from solution which can yield high specific power. Perovskites have also demonstrated some of the lowest temperature coefficients and highest defect tolerance, which make them excellent candidates for aerospace applications. However, MHPs must demonstrate durability in space which presents different challenges than terrestrial operating environments. To decisively test the viability of perovskites being used in space, a perovskite thin film is positioned in low earth orbit for 10 months on the International Space Station, which was the first long-duration study of an MHP in space. Postflight high-resolution ultrafast spectroscopic characterization and comparison with control samples reveal that the flight sample exhibits superior photo-stability, no irreversible radiation damage, and a suppressed structural phase transition temperature by nearly 65 K, broadening the photovoltaic operational range. Further, significant photo-annealing of surface defects is shown following prolonged light-soaking postflight. These results emphasize that methylammonium lead iodide can be packaged adequately for space missions, affirming that space stressors can be managed as theorized.

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“…In the case of low energy particles, the damage amount depends on energy, flux and fluence. Low energy proton irradiations (< 500 keV) with fluences lower than 10 16 p/cm 2 have shown to determine negligible changes in the near infrared reflectance of SiO2-protected Al mirrors [107] [108]. A degradation dependent on the proton fluence has been instead observed in the visible and near ultraviolet.…”

Section: Charged Particlesmentioning

confidence: 99%

Mirrors for Space Telescopes: Degradation Issues

Garoli¹,

Marcos²,

Larruquert³

et al. 2020

Preprint

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Mirrors are a subset of optical components essential for the success of current and future space missions. Most of the telescopes for space programs ranging from Earth Observation to Astrophysics and covering the whole electromagnetic spectrum from X-rays to Far-Infrared are based on reflective optics. Mirrors operate in diverse and harsh environments that range from Low-Earth Orbit, to interplanetary orbits and the deep space. The operational life of space observatories spans from minutes (sounding rockets) to decades (large observatories), and the performance of the mirrors within the mission lifetime is susceptible to degrade, which results in a drop of the instrument throughput, which in turn affects the scientific return. Therefore, the knowledge of potential degradation mechanisms, how they affect mirror performance, and how to prevent them is of paramount importance to ensure the long-term success of space telescopes. In this review we report an overview on current mirror technology for space missions with a focus on the importance of degradation and radiation resistance of the coating materials. A special attention will be given to degradation effects on mirrors for the far and extreme UV as in these ranges the degradation is enhanced by the strong absorption of most contaminants.

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Development and testing of coatings for orbital space radiation environments

Cited by 29 publications

References 13 publications

Synthesis and radiation shielding properties of polyimide/Bi2O3 composites

Synthesis and radiation shielding properties of polyimide/Bi2O3 composites

Evaluation of Hybrid Perovskite Prototypes After 10‐Month Space Flight on the International Space Station

Mirrors for Space Telescopes: Degradation Issues

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