| 摘要 |
The ability of solar cell encapsulant materials comprising an ionomer, EVA or a block polymer composition of the type described in U.S. Patents Nos. 4,749,430 and 4,692,557 to withstand discoloration and degradation from exposure to UV radiation is improved by incorporating in the encapsulant material a selected triazine UV absorber that does not react with the metals that interconnect the solar cells. A preferred embodiment of the invention involves the addition of a metal deactivator. An anti-oxidant may be added to augment the ability of the metal deactivator to reduce the metal reactivity of the ionomer, EVA or block polymer composition. |
