Aluminosilicate glasses with high thermal resistance, low processing temperature and high crystallization stability

摘要

The present invention relates to an aluminosilicate glass, comprising a glass composition, the sio₂ and al₂O₃ as well as the alkali oxide na₂O and the alkaline earth metal oxides cao and mgo, as well as optionally further components, wherein the glass composition 10 to 16 w -% na₂O, and 0 to 5 w -% cao, and the ratio of cao: mgo in the range of 0,5 to 1,7 is. The aluminosilicate glass according to the invention is a result of the selected ratio of cao / mgo crystallization-stable and has a transformation temperature tg of 580°C. as well as a working temperature va 1200°C. It is therefore a more thermally stable an alternative to lime - sodium hydroxide - glass. The present invention also relates to a photovoltaic modules - cell, in particular a thin film photovoltaic cells - - cell, which comprise according to the invention is used as a substrate.