Mitigating UV Effect on Space Materials by Cobalt Doped Stannic Dioxide Nanocrystal Coat

Monalisa

Abstract: Materials deployed in outer space are subject to harsh and unfiltered solar radiation and cosmic rays. Vacuum ultraviolet rays and cosmic rays severely degrade conventional optical components. Solarization and lattice displacement being major issues, this study investigates possible mitigation of hazards by space ultraviolet compatibility and optical radiation behaviour of cobalt-doped stannic dioxide nanocrystals synthesized using facile co-precipitation green route. UV-Visible absorption reveals systematic behaviour in band structural, microstructural and properties of optical conductivity, optical density, refractive index, extinction coefficients, and absorbance prominently in UV region. Several effects such radiation blocking and solarization are governed by 3d states and mid-gap levels. Cobalt doping effectively suppressed formation of radiation induced colour centres by mitigating structural disorder. Moreover, the nano-size morphology provides high surface-to-volume ratio which facilitates rapid dynamic relaxation (likely, self-healing) of lattice strains. The features establish the materials synthesized and studied as a highly viable candidate for transparent conductive oxide coatings, space-grade solar cell protective windows and deep-space optoelectronic sensors.

Keywords: optical absorption, cobalt-doped stannic dioxide nanoparticles, space materials, vacuum UV, solarization resistance, radiation hardened materials

How to Cite?: Monalisa, "Mitigating UV Effect on Space Materials by Cobalt Doped Stannic Dioxide Nanocrystal Coat", Volume 15 Issue 9, September 2026, International Journal of Science and Research (IJSR), Pages: 447-451, https://www.ijsr.net/getabstract.php?paperid=SR26908073129, DOI: https://dx.doi.org/10.21275/SR26908073129

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