TECHNOLOGY FOCUS - CERAMICS AND GLASS - The first sealant cap is made of glass (preferably aluminosilicate glass, borosilicate glass, dichroic glass, germanium/semiconductor glass, glass ceramic, silicate/fused silica glass, soda lime glass, quartz glass, chalocogenide/sulfide glass, fluoride glass, PYREX (RTM: borosilicate glass), a glass-based phenolic, cereated glass, or flint glass). The strip of sealant is formed from glass frit, sol-gel, or a ceramic cement.    TECHNOLOGY FOCUS - IMAGING AND COMMUNICATION - The albedo surface is Lambertian or diffuse.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - The first sealant cap is made of metal, or metal alloy. The first layer comprises copper-indium-gallium-diselenide (CIGS), having a stoichiometry of CuIn1-xGaxSe2 with non-uniform Ga/In composition.    TECHNOLOGY FOCUS - POLYMERS - The filler material is a gel, liquid or solid, and comprises ethylene vinyl acetate (EVA), silicone, silicone gel, a silicone-based oil, epoxy, polydimethylsiloxane (PDMS), room temperature vulcanizing (RTV) silicone rubber, polyvinyl butyral (PVB), thermoplastic polyurethane (TPU), a polycarbonate, an acrylic, a fluoropolymer, a urethane, a PDMS polymer liquid (preferably a PDMS polymer liquid of formula (CH3)3SiO(SiO(CH3)2)nSi(CH3)3) (where n = a range of integers chosen such that the liquid has an average bulk viscosity of 40-60 centistokes), or a silicone oil (preferably PDMS polymer liquid, especially a PDMS polymer liquid of formula (CH3)3SiO(SiO(CH3)2)n1Si(CH3)3) (where n1 = a range of integers chosen such that the liquid has an average bulk viscosity of 50-100000 centistokes) (30-90 wt.%) mixed with a dielectric gel (preferably a mixture of a first silicone elastomer (2-20 wt.%) and a second silicone elastomer (2-20 wt.%)). The first silicone elastomer comprises (wt.%) dimethylvinyl-terminated dimethyl siloxane ( greater than or equal to 60) and silicate (3-7). The second silicone elastomer comprises (wt.%) dimethylvinyl-terminated dimethyl siloxane ( greater than or equal to 60), hydrogen-terminated dimethyl siloxane (10-30), and trimethylated silica (3-7).