Photothermal Characterization of Encapsulant Materials for Photovoltaic Modules.

摘要

A photothermal test matrix and a low-cost testing apparatus for encapsulant materials of photovoltaic modules have been defined and illustrated. Photothermal studies were conducted in order to screen and rank existing as well as future encapsulant candidate materials and/or material formulations in terms of their long-term physiochemical stability under accelerated photothermal aging conditions. Photothermal characterization of six candidate pottant materials and six candidate outer cover materials have been carried out. Principal products of photothermal degradation were identified. Certain critical properties were also monitored as a function of photothermal aging. (ERA citation 07:042790)