Wide band wide angle reflection-reducing coatings for silicon cells
✍ Scribed by S.F. Pellicori
- Publisher
- Elsevier Science
- Year
- 1981
- Weight
- 305 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0379-6787
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✦ Synopsis
A program for the design, deposition and environmental evaluation of coatings for silicon cells is reported. This program had as its objectives the optimization of a multilayer coating for wide acceptance angle, extended spectral response and space-qualified environmental durability on covered cells. Two-and three-layer designs were evolved, and coatings were deposited and evaluated. A two-layer design using CeF3 (quarter-wave optical thickness (QWOT) at 710 nm) and TiO2 (QWOT at 682 nm, innermost) reduced the reflectance average to 3% or below between 550 and 1000 nm wavelength. The improvement in cell power output over a conventional single-layer coating was about 8%. All environmental tests were passed by this two-layer combination.