Radiation-Resistant Solar Cell Coverglass

Solar cell coverglass coatings are subject to darkening under the Half-GEO radiation environment, and require increased radiation resistance. Premature power loss reduces satellite life below the required 15 year EOL goal and impacts the expense of satellite operation. We propose to apply advanced high-energy deposition technology to produce optical coatings for the cover glasses that exhibit high radiation resistance due to their superior micro-structural properties. These properties include bulk-like packing density, lower defect density, better optical homogeneity, and uniform morphology. We shall evaluate three of these deposition technologies in parallel, and after evaluating the results recommend one for production development. The research team brings nearly 70 years of experience in coating technology innovation and production development, with relevant experience in solar cell cover coating deposition, problem analysis, and solution development. The results will be applicable to all applications and requirements; military and commercial regardless of orbit, and could be marketed to the international solar cell panel industry.