SOLAR CELL USING ULTRA-TRANSPARENT LOW-IRON GLASS Russian patent published in 2011 - IPC C03C3/87 

FIELD: chemistry.

SUBSTANCE: ultra-transparent low-iron glass which is highly oxidised is used in solar cells and the like. The glass contains the following, in wt %: SiO₂ 67-75, Na₂O 10-20, CaO 5-15, total iron content (expressed as Fe₂O₃) 0.001 - 0.05, FeO <=0.0038, redox potential of the glass <=0.12, antimony oxide from 0 to less than 0.01, cerium oxide from 0 to 0.2, SO₃ >=0.31. The glass substrate has visible light transmission coefficient of at least 91%, spectral transmission value a* from -1.0 to +1.0, spectral transmission value b* from 0 to +1.5, value of % TS of at least 90%, and UV radiation transmission coefficient of at least 80%. The glass substrate used in solar cells can be patterned in certain versions of this invention.

EFFECT: high transmission of UV light, overall light transmission.

19 cl, 3 dwg