Solar cells modules comprising low haze encapsulants

摘要: Provided is a solar cell module comprising layer and an ionomer sheet composition, said composition first that the neutralized product of precursor acid copolymer, wherein, (A) copolymer comprises copolymerized units, alpha-olefin having 2 to 10 carbon atoms about 20 30 wt%, based on total weight units second alpha, beta-ethylenically unsaturated carboxylic 3 8 atoms; (B) has melt flow rate 70 1000 g/10 min, as determined in accordance with ASTM D1238 at 190°C 2.16 kg; (C) when level 40% 90% sodium cations, produces ionomer, 0.7 25 min freeze enthalpy not detectable or less than 3.0 j/g, by differential scanning calorimetry (DSC) D3418.