Design, analysis, and test verification of advanced encapsulation system. Triannual report for period ending March 31, 1980

Two strawman designs have been devised to aid in the development of analytical techniques for evaluating advanced solar cell encapsulation systems designs. The optical model for a multi-layer system in which reflection, absorption, and transmission may occur between layers, was completed and analytically verified. An expression giving the electrical safety criteria for a multi-layer dielectric system has been derived. A thermal analytical analysis program has been developed which will accommodate up to six different material layers for the determination of NOCT. MSC/NASTRAN has been selected as the primary structural analysis computer code. A matrix of materials and properties has been prepared. Work has begun in finding the necessary material properties.